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. 2021 Oct 7;21:491. doi: 10.1186/s12888-021-03501-x

Table 1.

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

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%)

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