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Table 2 Predictors for duration of sick leave (univariate analysis)

From: Predictive factors of the duration of sick leave due to mental disorders

Variables Estimated mean days of sick leave SE 95% CI χ2 Degree of freedom p
Lower Upper
Socio-demographic
 Age at start of sick leave
  20–29 215.9 40.5 136.5 295.3 4.07 3 0.254
  30–39 346.1 35.7 276.0 416.1
  40–49 331.8 41.8 250.0 413.7
 50 218.1 73.6 73.8 362.5
 Sex
  Male 318.6 26.9 265.9 371.3 0.33 1 0.564
  Female 327.9 50.5 228.8 427.0
 Age at start of employment (years)
  < 25 331.8 36.4 260.5 403.0 1.16 2 0.561
  25–29 339.0 40.3 259.9 418.0
 30 235.1 44.3 148.2 322.0
 Tenure (years)
  < 5 240.6 50.8 141.0 340.2 4.12 3 0.249
  5–9 289.6 61.9 168.2 410.9
  10–19 322.4 35.2 253.4 391.5
 20 371.6 46.2 281.1 462.1
Clinical
 Number of previous sick leave
  0 282.9 26.4 231.3 334.6 8.36 2 0.015
  1–2 367.5 62.4 245.1 489.8
 3 444.8 72.7 302.4 587.3
 Diagnosis
  Major depressive disorder 330.2 33.3 265.0 395.4 13.96 5 0.016
  Adjustment disorder 237.8 40.9 157.7 317.9
  Bipolar disorder 389.8 171.3 54.0 725.5
  Anxiety disorder 506.2 145.1 221.8 790.6
  Schizophrenia 586.9 130.0 332.0 841.7
  Others 328.2 69.8 191.4 465.0
Work related
 Employee rank
  Manager 304.7 47.4 211.8 397.7 10.80 3 0.013
  Senior staff 260.8 30.8 200.4 321.1
  Normal staff 378.0 45.6 288.7 467.4
  Assistant staff 663.3 123.4 421.4 905.1