Do competing demands of physical illness in type 2 diabetes influence depression screening, documentation and management in primary care: a cross-sectional analytic study in Aboriginal and Torres Strait Islander primary health care settings

Schierhout, Gill; Nagel, Tricia; Si, Damin; Connors, Christine; Brown, Alex; Bailie, Ross

doi:10.1186/1752-4458-7-16

International Journal of Mental Health Systems

Table 2 Characteristics of the sample by depression screening, documentation and prescription of antidepressant medication

From: Do competing demands of physical illness in type 2 diabetes influence depression screening, documentation and management in primary care: a cross-sectional analytic study in Aboriginal and Torres Strait Islander primary health care settings

Variables	Total sample		Screened with standard named tool					Documented depression					Prescription of antidepressant medication
	n	%	n	%	OR	95% CI		n	%	OR	95% CI		n	%	OR*	95% CI
Total	1174	100	57	5.0				70	6.0				65	5.5
Sex
Male	489	41.7	22	4.5	Reference			25	5.1	Reference			25	5.1	Reference
Female	685	58.3	35	5.1	1.14	0.69	1.89	45	6.6	1.31	0.73	2.34	40	5.8	1.15	0.57	2.32
Age group
15-35 years	111	9.5	2	1.8	Reference			4	3.6	Reference			4	3.6	Reference
35-49 years	434	37.0	20	4.6	2.63*	1.51	4.60	35	8.1	2.35	0.84	6.58	24	5.5	1.57	0.56	4.37
50-64 years	450	38.3	16	3.6	2.01	0.69	5.89	24	5.3	1.51	0.51	4.49	28	6.2	1.77	0.62	5.08
65+ years	179	15.2	19	10.6	6.47	1.26	33.27	7	3.9	1.09	0.35	3.40	9	5	1.42	0.45	4.44
Smoking status
Non-smoker	769	65.5	32	4.2	Reference			40	5.2	Reference			39	5.1	Reference
Current smoker	405	34.5	25	6.2	1.52	0.62	3.72	30	7.4	1.48	0.89	2.46	26	6.4	1.28	0.83	1.99
BMI
BMI 24 or less	572	50.9	5	0.9	Reference			19	3.3	Reference			23	4	Reference
BMI>24	551	49.1	52	9.4	11.82**	3.58	39.02	47	8.5	2.71*	1.35	5.46	39	7.1	1.82	0.87	3.80
Ischaemic heart disease
No	951	81.0	41	4.3	Reference			55	5.8	Reference			49	5.2	Reference
Yes	223	19.0	16	7.2	1.72	0.71	4.14	15	6.7	1.17	0.7	2.10	16	7.2	1.42	0.72	2.82
Renal disease
No	742	63.2	48	6.5	Reference			58	7.8	Reference			47	6.3	Reference
Yes	432	36.8	9	2.1	0.31**	0.17	0.56	12	2.8	0.34**	0.2	0.75	18	4.2	0.64	0.33	1.26
ACR level
<=3.4	270	33.8	28	10.4	Reference			17	6.3	Reference			17	6.3	Reference
>3.4	528	66.2	11	2.8	0.18**	0.09	0.37	29	5.5	0.87	0.4	1.8	22	4.2	0.65	0.3	1.23
Hypertension
No	491	41.8	19	3.9	Reference			24	4.9	Reference			20	4.1	Reference
Yes	683	58.2	38	5.6	1.46	0.75	2.87	46	6.7	1.41	0.8	2.34	45	6.6	1.66	0.96	2.88
Hyperlipidaemia†
No	629	53.6	19	3.0	Reference			29	4.6	Reference			96	26	Reference
Yes	545	46.4	38	7.0	2.41*	1.30	4.46	41	7.5	1.68*	1.1	2.66	39	7.2	1.79*	1.07	2.97
Diabetes treatment
No medication	150	14.3	14	8.3	Reference			11	6.5	Reference			11	6.5	Reference
Oral	678	63.8	29	3.9	0.44*	0.26	0.76	40	5.3	0.81	0.40	1.62	40	5.3	0.80	0.42	1.50
Insulin	222	21.9	14	5.4	0.63	0.38	1.04	19	7.4	1.14	0.50	2.58	19	7.4	1.26	0.53	3.01
HbA1c level
<=7.00%	301	30.0	28	9.3	Reference			27	9	Reference			19	6.3	Reference
>7.00%*	702	70.0	25	3.6	0.36**	0.23	0.55	36	5.1	0.55*	0.34	0.88	35	5	0.78	0.46	1.31
Total cholesterol
<=4.00 mmol1-1	323	34.9	21	6.5	Reference			20	6.2	Reference			10	3.1	Reference
>4.00 mmol 1-1	603	65.1	30	5	0.75	0.46	1.24	40	6.6	1.08	0.72	1.61	39	6.5	2.16	0.99	4.73
Blood pressure
<=130/80 mmHg	404	36.4	19	4.7	Reference			25	6.2	Reference			22	5.4	Reference
>130/80 mmHg	706	63.6	37	5.2	1.12	0.63	1.98	41	5.8	0.93	0.66	1.33	37	5.2	0.96	0.54	1.70
P<0.01; *P<0.001

Significance tests adjusted for clustering by health centre. Sample size might vary with missing data. BMI, body mass index.
† Further analysis (not shown in the table) revealed that the association between hyperlipidaemia and depression & screening was mediated by BMI; after adjusting for this interaction, no substantial effect of hyperlipidaemia on depression indicators remained.

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ISSN: 1752-4458

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