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Table 1 Cohort characteristics at each of the three data collection waves and characteristics of CIDI-SF respondents

From: Validation of case definitions of depression derived from administrative data against the CIDI-SF as reference standard: results from the PROspective Québec (PROQ) study

Characteristics

T1

n = 9188

T2

n = 8120

T3

n = 6748

CIDI-SFa

n = 5515

Age

40.0 ± 8.6

(19–72)

47.8 ± 8.5

(26–80)

63.7 ± 7.6

(44–98)

64.0 ± 7.2

(44–89)

Sex

 Women

4581 (49.9%)

4000 (49.3%)

3357 (49.8%)

2674 (48.5%)

 Men

4607 (50.1%)

4120 (50.7%)

3391 (50.2%)

2841 (51.5%)

Education

  ≤ High school

2715 (29.8%)

2170 (27.0%)

1641 (24.6%)

1342 (24.4%)

 College

2564 (28.1%)

2233 (27.8%)

1787 (26.8%)

1454 (26.5%)

  ≥ University

3835 (42.1%)

3634 (45.2%)

3253 (48.7%)

2699 (49.1%)

Administrative cases of depressionb

  

255 (3.8%)

207 (3.8%)

  1. a CIDI-SF respondent are a subset of all participants in the T3 data collection wave. b At least one depression code (hospital or ambulatory) during the year preceding T3