Table 1.
Characteristics of the study population, CONFINS cohort, France, 2020
| Total N=2260 |
Students N=1335 |
Non-students N=925 |
|
| Female, n (%) | 1759 (77.8) | 1065 (79.8) | 694 (75.0) |
| Age, mean (SD) | 30.2 (12.8) | 23.3 (3.9) | 40.1 (14.5) |
| <30 years old, n (%) | 1600 (70.8) | 1281 (96.0) | 319 (34.5) |
| In a relationship, n (%) | 1348 (59.7) | 642 (48.1) | 706 (76.3) |
| Education level, n (%) (N=2259) | 2259 | 1335 | 924 |
| <Second-year university level | 462 (20.5) | 251 (18.8) | 211 (22.8) |
| Second-year university level | 393 (17.4) | 216 (16.2) | 177 (19.2) |
| >Second-year university level | 1404 (62.2) | 868 (65.0) | 536 (58.0) |
| Working or studying for the medical sector, n (%) | 882 (39.0) | 507 (38.0) | 375 (40.5) |
| History of psychiatric disease, n (%) (missing data: 209/186) | 425 (22.8) | 254 (22.1) | 171 (23.9) |
| History of other disease at risk for COVID-19, n (%) (missing data: 197/144) | 544 (28.4) | 286 (24.0) | 258 (35.4) |
| Weeks of inclusion in the cohort, n (%) (N=2259) | |||
| W14-15 | 676 (29.9) | 264 (19.8) | 412 (45.6) |
| W16-17 | 1306 (57.8) | 862 (64.6) | 444 (48.1) |
| W18-19 | 277 (12.3) | 209 (15.7) | 68 (7.4) |
| Being in lockdown in a high-risk region, n (%) (N=2254) | 440 (19.5) | 151 (11.3) | 289 (31.2) |
| Lockdown accommodation with an outdoor space, n (%) | 1796 (79.5) | 1039 (77.8) | 757 (81.8) |
| Having a pet, n (%) | 1002 (44.3) | 616 (46.1) | 386 (41.7) |
| Lockdown accommodation surface (in m2), mean (SD) (missing data: 0/8) | 121.2 (239.0) | 124.5 (255.8) | 116.4 (212.6) |
| Acquaintance or family with COVID-19 or COVID-19 suspicion, n (%) | 963 (42.6) | 556 (41.7) | 407 (44.0) |
| Being in lockdown alone, n (%) | 368 (16.3) | 221 (16.6) | 147 (15.9) |
| Physical exercise during lockdown, n (%) | 1863 (82.4) | 1081 (81.0) | 782 (84.5) |
| Being in lockdown at home, n (%) | 1662 (73.5) | 846 (63.4) | 816 (88.2) |