Table 1. Participant demographics.
| 2016_07 (n = 4730) | 2017_03 (n = 5979) | 2018_05 (n = 2915) | 2018_10 (n = 8509) | 2019_05 (n = 7653) | 2019_10 (n = 10235) | 2020_05 (n = 11317) | Overall (n = 51338) | |
|---|---|---|---|---|---|---|---|---|
| Age | ||||||||
| Mean (standard deviation) | 49.7 (13.2) | 50.1 (14.4) | 48.9 (14.3) | 48.6 (14.4) | 47.9 (14.9) | 50.8 (15.3) | 47.0 (15.9) | 48.9 (15.0) |
| Missing, n (%) | 596 (12.6) | 184 (3.1) | 65 (2.2) | 213 (2.5) | 226 (3.0) | 500 (4.9) | 599 (5.3) | 2383 (4.6) |
| Gender, n (%) | ||||||||
| Female | 4178 (88.3) | 5109 (85.4) | 2526 (86.7) | 7502 (88.2) | 6686 (87.4) | 8519 (83.2) | 9582 (84.7) | 44102 (85.9) |
| Male | 536 (11.3) | 858 (14.4) | 381 (13.1) | 985 (11.6) | 933 (12.2) | 1661 (16.2) | 1684 (14.9) | 7038 (13.7) |
| Missing or non-binary | 16 (0.3) | 12 (0.2) | 8 (0.3) | 22 (0.3) | 34 (0.4) | 55 (0.5) | 51 (0.5) | 198 (0.4) |
| Occupation, n (%) | ||||||||
| Health care and social assistance | 3573 (75.5) | 3962 (66.3) | 2039 (69.9) | 5794 (68.1) | 4493 (58.7) | 5452 (53.3) | 7112 (62.8) | 32425 (63.2) |
| Other occupation | 926 (19.6) | 1718 (28.7) | 733 (25.1) | 2300 (27.0) | 1716 (22.4) | 3225 (31.5) | 4041 (35.7) | 14659 (28.6) |
| Missing | 231 (4.9) | 299 (5.0) | 143 (4.9) | 415 (4.9) | 1444 (18.9) | 1558 (15.2) | 164 (1.4) | 4254 (8.3) |
| Education, n (%) | ||||||||
| Post-secondary education | 3555 (75.2) | 4956 (82.9) | 2370 (81.3) | 6904 (81.1) | 5514 (72.1) | 7254 (70.9) | 9373 (82.8) | 39926 (77.8) |
| Up to secondary education | 1076 (22.7) | 1023 (17.1) | 545 (18.7) | 1603 (18.8) | 1055 (13.8) | 1398 (13.7) | 1690 (14.9) | 8390 (16.3) |
| Missing | 99 (2.1) | 0 (0) | 0 (0) | 2 (0.0) | 1084 (14.2) | 1583 (15.5) | 254 (2.2) | 3022 (5.9) |
| Country of residence income classification, n (%) | ||||||||
| High-income | 4582 (96.9) | 5741 (96.0) | 2798 (96.0) | 8093 (95.1) | 6990 (91.3) | 9364 (91.5) | 10138 (89.6) | 47706 (92.9) |
| Low- and middle-income | 141 (3.0) | 227 (3.8) | 108 (3.7) | 402 (4.7) | 638 (8.3) | 842 (8.2) | 1157 (10.2) | 3515 (6.8) |
| Missing | 7 (0.1) | 11 (0.2) | 9 (0.3) | 14 (0.2) | 25 (0.3) | 29 (0.3) | 22 (0.2) | 117 (0.2) |