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. 2021 Apr 22;21:771. doi: 10.1186/s12889-021-10841-6

Table 1.

Sample Demographic Characteristics by Data Collection Wave

Wave 1
N = 401
Wave 2
N = 320
Wave 3
N = 311
Wave 4
N = 271
Age (years)
 Mean (SD) 43.9 (13.4) 44.5 (12.9) 44.3 (13.5) 44.3 (13.2)
Gender
 Men 163 (40.6%) 128 (31.9%) 116 (28.9%) 104 (25.9%)
 Women 204 (50.9%) 169 (42.1%) 170 (42.4%) 145 (36.2%)
 Gender diverse 34 (8.5%) 23 (5.7%) 25 (6.2%) 22 (5.5%)
 Missing 0 (0%) 81 (20.2%) 90 (22.4%) 130 (32.4%)
Education
 Some college or less 248 (61.8%) 198 (49.4%) 192 (47.9%) 160 (39.9%)
 College degree 67 (16.7%) 55 (13.7%) 52 (13.0%) 44 (11.0%)
 Bachelor’s or graduate degree 51 (12.7%) 44 (11.0%) 38 (9.5%) 43 (10.7%)
 Other 35 (8.7%) 23 (5.7%) 29 (7.2%) 24 (6.0%)
 Missing 0 (0%) 81 (20.2%) 90 (22.4%) 130 (32.4%)
Monthly Income (CAN$)
 0–599 60 (15.0%) 36 (9.0%) 32 (8.0%) 21 (5.2%)
 600–1199 163 (40.6%) 131 (32.7%) 112 (27.9%) 100 (24.9%)
 1200–1799 75 (18.7%) 59 (14.7%) 75 (18.7%) 67 (16.7%)
 1800–2399 22 (5.5%) 24 (6.0%) 31 (7.7%) 25 (6.2%)
 2400 or more 12 (3.0%) 12 (3.0%) 31 (7.7%) 23 (5.7%)
 Missing 69 (17.2%) 139 (34.7%) 120 (29.9%) 165 (41.1%)
Born in Canada
 Yes 276 (68.8%) 225 (56.1%) 211 (52.6%) 192 (47.9%)
 No 101 (25.2%) 82 (20.4%) 80 (20.0%) 63 (15.7%)
 Missing 24 (6.0%) 94 (23.4%) 110 (27.4%) 146 (36.4%)
Ethnicity
 White 214 (53.4%) 173 (43.1%) 163 (40.6%) 150 (37.4%)
 First Nations/Metis/Inuit 36 (9.0%) 32 (8.0%) 25 (6.2%) 21 (5.2%)
 Visible minority 151 (37.7%) 115 (28.7%) 123 (30.7%) 100 (24.9%)
 Missing 0 (0%) 81 (20.2%) 90 (22.4%) 130 (32.4%)
Marital status
 Not marrieda 258 (64.3%) 220 (54.9%) 220 (54.9%) 193 (48.1%)
 Marrieda 120 (29.9%) 89 (22.2%) 90 (22.4%) 78 (19.5%)
 Missing 23 (5.7%) 92 (22.9%) 91 (22.7%) 130 (32.4%)
Dependents
 No dependent 209 (52.1%) 169 (42.1%) 168 (41.9%) 140 (34.9%)
 One or more dependents 166 (41.4%) 137 (34.2%) 141 (35.2%) 129 (32.2%)
 Missing 26 (6.5%) 95 (23.7%) 92 (22.9%) 132 (32.9%)
Physical health (SF12 subscale)
 Mean (SD) 45.2 (9.76) 43.9 (11.6) 44.2 (12.1) 43.5 (11.2)
Mental health (SF12 subscale)
 Mean (SD) 40.2 (11.3) 40.4 (11.7) 40.8 (13.9) 41.6 (11.9)

Notes. ‘Missing’ values include non-responses due to both attrition and unanswered questions within surveys. a‘Married’ includes living with a partner