- Open Access
Following up patients with depression after hospital discharge: a mixed methods approach
International Journal of Mental Health Systemsvolume 5, Article number: 28 (2011)
A medication information intervention was delivered to patients with a major depressive episode prior to psychiatric hospital discharge.
The objective of this study was to explore how patients evolved after hospital discharge and to identify factors influencing this evolution. Using a quasi-experimental longitudinal design, the quantitative analysis measured clinical (using the Hospital Anxiety and Depression Scale, the somatic dimension of the Symptom Checklist 90 and recording the number of readmissions) and humanistic (using the Quality of Life Enjoyment and Satisfaction Questionnaire) outcomes of patients via telephone contacts up to one year following discharge. The qualitative analysis was based on the researcher diary, consisting of reports on the telephone outcome assessment of patients with major depression (n = 99). All reports were analyzed using the thematic framework approach.
The change in the participants' health status was as diverse as it was at hospital discharge. Participants reported on remissions; changes in mood; relapses; and re-admissions (one third of patients). Quantitative data on group level showed low anxiety, depression and somatic scores over time. Three groups of contributing factors were identified: process, individual and environmental factors. Process factors included self caring process, medical care after discharge, resumption of work and managing daily life. Individual factors were symptom control, medication and personality. Environmental factors were material and social environment. Each of them could ameliorate, deteriorate or be neutral to the patient's health state. A mix of factors was observed in individual patients.
After hospital discharge, participants with a major depressive episode evolved in many different ways. Process, individual and environmental factors may influence the participant's health status following hospital discharge. Each of the factors could be positive, neutral or negative for the patient.
"Seamless care" is the continuity of care delivered to a patient in the health care system across the spectrum of caregivers and health care settings . This delivery of care should be consistent with the ongoing needs of the individual patient. In practice, several breaks or practice gaps can occur in the continuity of patient care. The Continuity of Care Task Force of the American Society of Health-System Pharmacists identified eight categories of such practice gaps: clinical gaps, patient gaps, communication gaps, organizational gaps, coordination gaps, professional gaps, policy gaps and technology gaps . It is a challenge to set up programs and initiatives to overcome these gaps in order to obtain continuity of care for every patient [2–5].
The provision of seamless care is especially relevant in the psychiatric setting. Discharge of patients from a psychiatric hospital is a critical point as this may be a risk for discontinuity of care. Psychiatric patients frequently experience serious symptoms and demonstrate disturbed behaviours (e.g. regressive functioning) in the very early post-discharge period. The very early post-discharge period was defined as the very first days after discharge. Wells explained that symptom exacerbations immediately after discharge are likely to be related to multiple intrapsychic and environmental determinants that make patients vulnerable to being temporarily overwhelmed by the challenges of adjusting to separation from a supportive hospital and reunion with a potentially less hospitable world . Wells focused only at the early post-discharge period and not on the longer post-discharge period. Little literature is available on long term data after hospital discharge for patients with major depression , except from some studies on suicidal ideation [8, 9].
A review on educational medication interventions in a psychiatric population showed that studies with heterogeneity in settings, interventions and target population has been performed. The main outcomes were compliance and knowledge for which both improvements after the educational medication intervention were seen . The GIPPOZ-study [11, 12] was set up to explore specifically the impact of a medication information intervention on antidepressants prior to discharge from a psychiatric hospital. GIPPOZ is a Dutch acronym for 'Differentiated Information for Psychiatric Patients at Hospital Discharge'. This was a clinical pharmacy intervention aiming at seamless or continuity of care by focusing on the patients' pharmacotherapy. In addition to examining the impact of the medication information intervention, a telephone diary was completed by the main researcher to explore patients' status after discharge by giving answers to the questions: how did patients proceed after discharge? Which factors contributed to patients' status?
The aim of the study was to answer the following research questions. (1) How do quantitative indicators for clinical and humanistic outcomes change up to three months after hospital discharge? (2) What does the telephone diary tell about the qualitative evolution of the patients' (mental) health status? (3) Which factors are contributing to this evolution? (4) To what extent new research questions can be formulated based upon the needs expressed by the patients during the telephone contacts?
Patients were eligible for inclusion in the GIPPOZ-study [11, 12] if they were at least 18 years old, if they had a major depressive episode as primary diagnosis according to the DSM-IV-TR criteria, it they took at least one antidepressant, if they were Dutch-speaking, if they could be reached by telephone for follow-up and if the treating psychiatrist confirmed these inclusion criteria. The GIPPOZ-study is a longitudinal study in 11 Flemish psychiatric hospitals. A quasi-experimental design was applied. It comprised three study groups: one control group (usual care) and two experimental groups (undifferentiated and differentiated information intervention depending on patients' information desire). Each hospital was assigned to one of the three study groups. Outcomes assessed in the GIPPOZ-study were compliance, depressive symptoms, somatic symptoms, side effects, costs of medicines and health care professionals, number of work days lost, quality of life and satisfaction.
Ninety-nine patients with a primary diagnosis of major depression according to the DSM-IV-TR criteria  were included in the GIPPOZ-study. Outcomes of the GIPPOZ-study were assessed via telephone contacts at four different points in time: shortly after the intervention (within one week after the intervention) (n = 96), one month after discharge (n = 89), three months after discharge (n = 80) and one year after discharge (n = 78). In total, 21 patients dropped out due to lost to follow-up and due to the fact that some patients did not longer want to participate. At inclusion, patients received a booklet containing all questionnaires for the four contact times to facilitate the outcome measurements.
Quantitative data on outcome measures were collected by means of questionnaires as reported by patients during telephone follow-up contacts by the main researcher. Data related to anxiety and depressive symptoms (Hospital Anxiety and Depression Scale (HADS)), somatic symptoms (somatic subscale of the Symptom Checklist 90 (SCL)), quality of life (Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q)) on the first three follow-up contacts. One year after discharge, readmission and use of antidepressant(s) were self-reported.
Notes were made during the telephone contacts of the patient's comments, questions and spontaneous stories. A qualitative report was written on each telephone contact in the GIPPOZ researcher diary. This researcher diary was a supportive instrument for future telephone contacts as the researcher used this diary to keep track of the issues raised in each contact with each patient. All 343 reports were included in the analysis . The reports are primary source documents with a private, study status. All data were anonymised. Ethical approval was obtained for the GIPPOZ-study and participants provided written consent at the start of the study.
To address the aims of the current study, a mixed methods analysis was conducted.
Quantitative data analysis
Descriptive statistical analyses were performed to describe patient sample (mean and standard deviation for normally distributed variables, median and percentiles for non-normally distributed data, and frequencies) and measurement scores (mean and standard deviations). As the aim of the current study is to assess how patient evolve after discharge, data of the GIPPOZ-study was pooled in one group. To assess differences in measurement scores (HADS, SCL and Q-LES-Q) over time, a linear model for repeated measures using an unstructured covariance matrix was applied. Analyses were performed in SPSS 16.00 for Windows (SPSS Inc., Chicago, IL).
Qualitative data analysis
The researcher diary was content analyzed using a qualitative approach. This qualitative analysis was performed inductively. The reports in the telephone diary were examined to identify the content of what patients told, using thematic framework analysis . Framework analysis was applied because it provides structure and coherence to the large amount of data as the GIPPOZ researcher diary counts more than 200 pages. Second, it facilitates systematic analysis. And finally, it relies on the creative and conceptual ability of the analyst to make sense of the content . Thematic framework analysis consists of five stages as was described by Pope and Mays: (I) familiarization (reading of the reports), (II) identifying a framework, (III) indexing, (IV) charting and (V) mapping and interpreting . The software QSR NVivo 7 (QSR International Pty Ltd., 2006) was used to facilitate data management.
A thematic framework was built on consensus between the main researcher and the supervisors of this study and was based on issues emerging from the data. The researcher diary was indexed and analyzed by the main researcher. When citing quotes of patients, the patients are referenced by including the unique number of the patient in the GIPPOZ-study. Verbatim citations of patients are formatted in italic, while notes of the diary are formatted regular.
A summary of demographic characteristics of all included participants in the GIPPOZ-study (n = 99) is given in Table 1. The majority of the participants were female (63%) with a mean age of 46 years. The median length of stay at the psychiatric hospital was 60 days. Half of the participants had a severe without psychotic symptoms depression at hospital admission. Two thirds of the participants had a psychiatric co-morbidity on top of the main diagnosis of major depression.
Follow-up measurement scores of anxiety, depressive (HADS) and somatic (SCL) symptoms and quality of life (Q-LES-Q) are provided in Table 2. Presence and severity of symptoms was low. Quality of life was scored as 62-65% of maximum possible. Satisfaction with medicines was higher (76-78%).
One year after discharge, 34 (43.6%) out of 78 participants had no changes in their antidepressant pharmacotherapy. Eight participants (10.3%) stopped all their antidepressants due to intentional non-compliance and due to instruction by the prescribing physician. Changes in the antidepressant pharmacotherapy were made for 38 patients (56.4%): dose change (n = 8), switch of antidepressant (n = 8), additional antidepressant (n = 8) or fewer antidepressants (n = 12).
At one year after discharge 28 out of 78 participants (36%) were readmitted to a psychiatric hospital. In total, 49 readmissions occurred. 35 out of the 49 readmissions were reported to be related to the depression pathology. A Kaplan Meier graph (Figure 1) was plotted to illustrate the proportion of participants readmitted and the time interval (expressed in days) between hospital discharge and first readmission: the majority of the participants were readmitted within 100 days after discharge.
The change in the participants' health status was as diverse as it was at the start of the GIPPOZ-study. Some participants continued to improve without having symptoms of low mood. Other participants reported on having ups and downs in several degrees of severity. Another group of participants had again more and more depressive symptoms which, in some cases, led to a relapse and even to a readmission to a psychiatric hospital because of e.g. a crisis situation, suicide attempt, fear of escaping into alcohol. A whole spectrum of evolutions in participants' health status has been observed. The diversity present at the start of the GIPPOZ-study was also seen at the end of the GIPPOZ-study (one year after their discharge from hospital). Quotes are provided in Table 3.
About one third of the participants reported that their mood changed from day to day. Changes in how they felt were also reported within the same day. Quotes are provided in Table 3.
In the next paragraphs, the themes that emerged from the data are presented. These themes consist of factors reported during the telephone contacts. The identified factors contributed to the participants' current status of health and well-being. These factors can be divided in three groups: process factors, individual factors and environmental factors. A factor can ameliorate or deteriorate or just be neutral for the status of a participant. As many factors contribute to the overall participants' status, change in one factor might not be directly linked to a change in the overall participants' status. In most participants, a mix of positive, negative and neutral factors was observed. An appreciation is included after each citation.
Self caring process
Many participants told to be happy to be able to go back home. This was observed in participants with either a short or a long hospital stay. Some of them wondered how this would proceed and were curious how they would manage. Other participants did not have worries about the transition between hospital and home. The transition itself was experienced as difficult in some cases as participants needed to re-adapt to the home environment after being living in the structured environment of a hospital. In other cases this transition proceeded smoothly. This was often mentioned by participants for whom this transition was not abrupt but rather step-down e.g. by following day care after discharge. Quotes are provided in Table 3.
The patient and the caring system
Medical care after discharge was available for the majority of the participants. This was organized via day care, ambulatory consultations with the psychiatrists, psychologist consultations, general practitioner consultations or via an outpatient mental health centre. For some participants, medical follow-up was problematic due to several reasons: in search for another health care professional, participant had no time for the consultation, no money to pay the consultation, hospital/health care professional fully booked or participants did not wish to have medical care anymore. Quotes are provided in Table 3.
Getting back to work was another challenging process for participants. Timing for this process was very variable among participants. Some of them started to work again soon after discharge, whilst others returned to work after several months. Some of them started on a full time basis, whilst others used a step-up approach by starting on a part time basis. For some of them working was just as it was before or even better and for others it demanded a great adaptation and sometimes it was still too early to get back to work and needed an extension of their sick leave. Other participants did not manage to return to work within one year after discharge. Quotes are provided in Table 3.
Managing their own life and running their housekeeping was as challenging as getting back to work. Participants reported they had to adapt themselves again after this period of hospital stay. Sometimes it went smoothly and at other times it was a struggle to bring in some structure. Quotes are provided in Table 3.
Except for a minority of the participants, presence of somatic symptoms was reported. These were gastro-intestinal problems, back problems, a recent surgery, headache and vague symptoms (trembling, tingling, equilibrium disturbances, dizziness and feeling hot or cold). Also psychiatric symptoms were reported: depressive symptoms including suicidal ideas, anxiety and substance related problems (alcohol, medicines or drugs). Some participants could dissociate somatic health from their mental health. Quotes are provided in Table 3.
Pharmacotherapy with antidepressants was present for all participants at hospital discharge. Some participants reported on a having a long search to find the antidepressant that works for them. Antidepressants were stopped, were changed and were started again. Several motivations were provided: antidepressant was no longer needed, did not work or caused too much side effects. Compliance was another issue for pharmacotherapy: having a relapse due to an early stop of the antidepressant was a strong motivator to be compliant to the antidepressant pharmacotherapy this time. Several participants reported that although the antidepressant is supportive, it is not a solution for the underlying problem(s) or for the cause of the depression. Quotes are provided in Table 3.
Participants had their own personality, way of living and coping styles. This can facilitate or complicate certain situations e.g. going through a difficult time. Quotes are provided in Table 3.
Financial difficulties have been reported. Debt mediation was often used as a resource to get out of debt. This was seen as a support for the participants because they did not manage on their own. Because of these financial constraints, medical care was sometimes limited to essential care only and it also complicated daily life. Quotes are provided in Table 3.
Being unemployed, being disabled or not yet able to return to work were experienced as disappointments. This situation was often accompanied with a lower financial income. Dissatisfaction was sometimes present. For other participants, getting back to work turned out better than was expected. Quotes are provided in Table 3.
Social relations with family and friends were sometimes reported to be difficult or complex: divorce, decease, illness, feeling lonely, lack of understanding on depression and objections towards antidepressant pharmacotherapy. Sometimes, the participant was not ready yet to take up again social life. Other participants were well supported by their environment. Quotes are provided in Table 3.
Leisure activities could be relaxing. Other participants did not have or did not desire leisure activities. Finding relaxation was regularly found to be difficult. Quotes are provided in Table 3.
Some participants reported to have difficulties in finding an appropriate home or not feeling well in their current home. Several participants moved. Some of them started all over again. Quotes are provided in Table 3.
This study has followed patients with a major depressive episode up to one year following discharge from a psychiatric hospital. The quantitative analysis indicated that some participants continued to experience depressive and somatic symptoms, had an impaired quality of life following hospital discharge, or were re-admitted to hospital. The literature indicates that clinical and psychosocial factors are predictors of outcomes or relapse of major depressive episodes. Clinical predictors included baseline depression severity, number and length of previous depressive episodes, age at first onset, previous ineffective treatment, absence of early response and increased number of co-morbidities [21–23]. Psychosocial predictors were lack of employment, low socio-economic status, marital status, poor functional status, expressed emotion, stress, disability and absence of social support [21, 24, 25]. A number of these factors were also identified in our qualitative research in the groups 'individual factors' and 'environmental factors'. Future research will need to clarify if there is a link between all of the identified factors and participants' status or outcomes. Further research is needed to study the identified factors more in depth and how they relate to each other in a qualitative and quantitative approach.
The current study did not report on the specific numbers that each factor was mentioned in the qualitative part. This has been controversial and is still a topic of debate. Maxwell listed the advantages and problems in using numbers in qualitative research . The main reason why no numbers were reported is that numbers can lead to the inference of greater generality for the conclusions than is justified. As this study reports on spontaneous reports rather than on data collected in systematic interviews on all factors described in the results, such inferences would not be appropriate.
One third of the patients had a readmission of which the majority occurred in the first 100 days after hospital discharge. Direct comparisons with other countries are difficult due to important differences in the structure and organisation of the health care systems between countries. A Canadian study showed that 19% of the patients with depression were readmitted within one year . The study showed also that readmission within 30 days were more likely among unemployed persons and were showing more depressive symptoms.
Risk of relapse has been associated with the presence of residual symptoms . Both the quantitative and qualitative analyses showed that several participants experienced such residual symptoms. Keller suggested several approaches to increase the likelihood of remission. These were performing outcome measurement, optimization of dose, selection of antidepressant and pharmacologic adjuncts, optimization of the acute phase and attention to the three phases of treatment (acute, continuation and maintenance) . The approaches listed by Keller are mainly related to pharmacotherapy. In clinical practice and especially in a hospital environment, the focus needs to be broader in order to improve patient care and outcomes. Attention for the clinical factors is as important as the psychosocial and process-related factors.
A whole spectrum of evolutions in participants' health status and well-being has been observed in the quantitative and qualitative analyses. Although process factors, individual factors and environmental factors influenced participant status following hospital discharge, we wish to emphasize that each individual participant had its own specific situation. Some of these factors were encountered as difficulties, others as neutral items and some as stimulators. This appreciation of factors fits with the transactional functional communication model of Barnlund. In this model, the patient as communicator has a central role. The patient assigns a certain meaning to cues and (s)he encodes perceptions and feelings into cues. These cues can be public (observable for everyone; e.g. participant has a plaster for his/her broken arm), private (not observable for everyone; e.g. financial problems) and behavioural non-verbal ones (e.g. closing eyes during conversation). Persons formulate an appreciation of each of these cues: neutral (will be filtered away) or negative or positive (both will strengthen the emotions) [30, 31]. In the presentation of the results, an appreciation of the cue/factor was added to each quote. Future research could study if there are any patterns present between the type of cue/factor and the appreciation given to it.
In this study, a combination of quantitative and qualitative methods was applied because they are complementary to each other. Whereas the quantitative analysis was concerned with questions about the frequency of outcomes following hospital discharge, the qualitative analysis allowed us to gain in-depth knowledge on the experiences of participants. However, the analyses suffered from a number of limitations. First, not all participants completed the GIPPOZ-study. However, only one-fifth of participants dropped out of the study over a period of one year. This may be due to the specific method of following up performance, i.e. via telephone contact. Second, as the telephone follow-up conversations were not tape recorded, citations of participants included in the report were not verbatim but were based on the notes of the researcher. Third, not all participants were talkative. Some of them were more closed. Consequently, the reports of such participants were shorter and contained less detail on their situation. This is due to the standard procedure followed: the researcher was just asking the questions from the questionnaires. Participants were free to add any comments but were not asked to do so. If this would have been performed in a structured way for every participant, it would have been artificial and maybe some themes would not be identified. Fourth, no fixed structure was used for writing the reports. The only concern was to have a factual report of the conversation. Fifth, the results need to be seen in the context of post-discharge of patients with major depression. Sixth, no inference can be made on the possible influence of comorbidities on the outcomes of the GIPPOZ-study.
This quantitative and qualitative analysis of patients with a major depressive episode following hospital discharge highlighted the continued presence of depressive and somatic symptoms, impaired quality of life and the need for re-admission in some participants. Although process factors, individual factors and environmental factors may influence participant status following hospital discharge, participants differed in how they appreciated these factors as difficulties, neutral items or stimulators. It needs to be emphasized that each individual participant had its own specific situation.
ASHP Continuity of Care Task Force: Continuity of care in medication management: review of issues and considerations for pharmacy. Am J Health Syst Pharm. 2005, 62: 1714-1720.
Kripalani S, LeFevre F, Phillips CO, Williams MV, Basaviah P, Baker DW: Deficits in communication and information transfer between hospital-based and primary care physicians: implications for patient safety and continuity of care. JAMA. 2007, 297: 831-841. 10.1001/jama.297.8.831.
Chutuape MA, Katz EC, Stitzer ML: Methods for enhancing transition of substance dependent patients from inpatient to outpatient treatment. Drug Alcohol Depend. 2001, 61: 137-143. 10.1016/S0376-8716(00)00133-2.
Pickrell L, Duggan C, Dhillon S: From hospital admission to discharge: an exploratory study to evaluate seamless care. The Pharmaceutical Journal. 2001, 267: 650-653.
Puschner B, Steffen S, Gaebel W, Freyberger H, Klein HE, Steinert T, Muche R, Becker T: Needs-oriented discharge planning and monitoring for high utilisers of psychiatric services (NODPAM): design and methods. BMC Health Serv Res. 2008, 8: 152-10.1186/1472-6963-8-152.
Wells DA: Management of early postdischarge adjustment reactions following psychiatric hospitalization. Hosp Community Psychiatry. 1992, 43: 1000-1004.
Agosti V, Stewart JW: Six month follow-up of early-onset chronic depression. Depression. 1996, 4: 63-67. 10.1002/(SICI)1522-7162(1996)4:2<63::AID-DEPR4>3.0.CO;2-G.
Lin HC, Lee HC, Kuo NW, Chu CH: Hospital characteristics associated with post-discharge suicide of severely depressed patients. J Affect Disord. 2008, 110: 215-221. 10.1016/j.jad.2008.01.030.
Prinstein MJ, Nock MK, Simon V, Aikins JW, Cheah CS, Spirito A: Longitudinal trajectories and predictors of adolescent suicidal ideation and attempts following inpatient hospitalization. J Consult Clin Psychol. 2008, 76: 92-103.
Desplenter FA, Simoens S, Laekeman G: The impact of informing psychiatric patients about their medication: a systematic review. Pharm World Sci. 2006, 28: 329-341.
Desplenter F: Exploring the impact of medication information for psychiatric patients at hospital discharge. PhD Dissertation. 2009, Katholieke Universiteit Leuven, Faculty of Pharmaceutical Sciences
Desplenter FA, Laekeman GM, Simoens SR: Constraints and perspectives of pharmacists counseling patients with depression at hospital discharge. Int J Clin Pharm. 2011, 33: 101-110. 10.1007/s11096-010-9465-y.
American Psychiatric Association: Beknopte handleiding bij de Diagnostische Criteria van de DSM-IV-TR [Concise manual for the diagnostic criteria of the DSM-IV-TR]. Amsterdam: Harcourt. 2006
Zigmond AS, Snaith RP: The Hospital Anxiety and Depression Scale. Acta Psychiatrica Scandinavica. 1983, 67: 361-370. 10.1111/j.1600-0447.1983.tb09716.x.
Derogatis LR, Lipman RS, Covi L: SCL-90: an outpatient psychiatric rating scale--preliminary report. Psychopharmacol Bull. 1973, 9: 13-28.
Endicott J, Nee J, Harrison W, Blumenthal R: Quality of Life Enjoyment and Satisfaction Questionnaire: a new measure. Psychopharmacol Bull. 1993, 29: 321-326.
Miller FA, Alvarado K: Incorporating documents into qualitative nursing research. J Nurs Scholarsh. 2005, 37: 348-353. 10.1111/j.1547-5069.2005.00060.x.
Dew K: Documentary analysis in CAM research: Part 1. Complement Ther Med. 2005, 13: 297-302. 10.1016/j.ctim.2005.08.006.
Jones RK: The unsolicited diary as a qualitative research tool for advanced research capacity in the field of health and illness. Qual Health Res. 2000, 10: 555-567. 10.1177/104973200129118543.
Pope C, Mays N: Qualitative research in health care. 2006, Oxford: Blackwell Publishing, third
Bosworth HB, Hays JC, George LK, Steffens DC: Psychosocial and clinical predictors of unipolar depression outcome in older adults. Int J Geriatr Psychiatry. 2002, 17: 238-246. 10.1002/gps.590.
Iosifescu DV, Bankier B, Fava M: Impact of medical comorbid disease on antidepressant treatment of major depressive disorder. Curr Psychiatry Rep. 2004, 6: 193-201. 10.1007/s11920-004-0064-2.
Van HL, Schoevers RA, Dekker J: Predicting the outcome of antidepressants and psychotherapy for depression: a qualitative, systematic review. Harv Rev Psychiatry. 2008, 16: 225-234. 10.1080/10673220802277938.
Hooley JM, Teasdale JD: Predictors of relapse in unipolar depressives: expressed emotion, marital distress, and perceived criticism. J Abnorm Psychol. 1989, 98: 229-235.
Hennings JM, Owashi T, Binder EB, Horstmann S, Menke A, Kloiber S, Dose T, Wollweber B, Spieler D, Messer T, Lutz R, Künzel H, Bierner T, Pollmächer T, Pfister H, Nickel T, Sonntag A, Uhr M, Ising M, Holsboer F, Lucae S: Clinical characteristics and treatment outcome in a representative sample of depressed inpatients-findings from the Munich Antidepressant Response Signature (MARS) project. J Psychiatr Res. 2009, 43: 215-229. 10.1016/j.jpsychires.2008.05.002.
Maxwell JA: Using numbers in qualitative research. Qualitative Inquiry. 2010, 16: 475-482. 10.1177/1077800410364740.
CIHI (Canadian Institute for Health Information): Depression in Ontario: what predicts a first mental health rehospitalisation?. 2010, [http://secure.cihi.ca/cihiweb/products/depression_in_ontario_aib_2010_e.pdf]
Judd LL, Akiskal HS, Maser JD, Zeller PJ, Endicott J, Coryell W, Paulus MP, Kunovac JL, Leon AC, Mueller TI, Rice JA, Keller MB: Major depressive disorder: a prospective study of residual subthreshold depressive symptoms as predictor of rapid relapse. J Affect Disord. 1998, 50: 97-108. 10.1016/S0165-0327(98)00138-4.
Keller MB: Remission versus response: the new gold standard of antidepressant care. J Clin Psychiatry. 2004, 65 (Suppl 4): 53-59.
Laekeman G, Leemans L: Communicatie in de apotheek [Communication in the pharmacy]. 1999, Leuven/Amersfoort: Acco
Fauconnier G: Algemene communicatietheorie [General communication theory]. 1986, Leiden/Antwerpen: Martinus Nijhoff
This research was supported by a grant of the Institute for the Promotion of Innovation through Science and Technology in Flanders (IWT-Vlaanderen).
The members of the GIPPOZ Research Group were Johan Reyntens, Marc De Vos, Danny Vrijders, Sheila De Baere, Willy De Boever, Marise Heremans, Cathérine Rutgeerts, Claudine De Fré, Cécile De Keyster, Katharina De Meulemeester and Veerle Foulon. All are kindly thanked for patient recruitment and data collection for the GIPPOZ-study. We would also like to thank the Flemish Association of Hospital Pharmacist (division of psychiatry) for their constructive collaboration.
We are grateful to Sandra De Coster, Valérie De Vriese and Veerle Foulon who assisted in the telephone follow-up during the GIPPOZ-study.
The authors declare that they have no competing interests.
FAD designed the study and wrote the protocol under supervision of GJL and SRS. GRG was consulted for the design of the study and was responsible for patient recruitment; data collection during intervention and data collection on patients' readmissions. FAD undertook the quantitative and qualitative analysis. FAD, GJL and SRS built the thematic framework used in the qualitative analysis and discussed the analyses. All authors contributed to and have approved the final manuscript.
Franciska A Desplenter, Gert J Laekeman and Steven R Simoens contributed equally to this work.
Authors’ original submitted files for images
Below are the links to the authors’ original submitted files for images.