Table 1.
Characteristics of participants at 3 months follow-up, South Africa
| Female | Male | Total | ||
|---|---|---|---|---|
| Participants | 960 (51·3%) | 913 (48·8%) | 1873 (100%) | |
| Age, years | 50 (38–60) | 53 (44–63) | 52 (41–62) | |
| Age group, years | ||||
| <40 | 257 (26·8%) | 150 (16·4%) | 407 (21·7%) | |
| 40–64 | 539 (56·2%) | 563 (61·7%) | 1102 (58·8%) | |
| ≥65 | 164 (17·1%) | 200 (21·9%) | 364 (19·4%) | |
| Ethnicity | ||||
| Black | 515 (53·6%) | 381 (41·7%) | 896 (47·8%) | |
| White | 306 (31·9%) | 371 (40·6%) | 677 (36·1%) | |
| Mixed | 73 (7·6%) | 82 (9·0%) | 154 (8·2%) | |
| Indian | 61 (6·4%) | 71 (7·8%) | 132 (7·0%) | |
| Asian or other | 0 | 1 (0·1%) | 1 (0·1%) | |
| Unknown | 5 (0·5%) | 8 (0·9%) | 13 (0·7%) | |
| Pregnant | 31 (3·2%) | NA | 31 (1·7%) | |
| Number of comorbidities | ||||
| None | 295 (30·7%) | 278 (30·4%) | 573 (30·6%) | |
| 1 | 303 (31·6%) | 310 (34·0%) | 613 (32·7%) | |
| 2 | 234 (24·4%) | 196 (21·5%) | 430 (23·0%) | |
| ≥3 | 128 (13·3%) | 129 (14·1%) | 257 (13·7%) | |
| Comorbidity and risk factors | ||||
| Hypertension | 330 (34·4%) | 339 (37·1%) | 669 (35·7%) | |
| Obesity | 244 (25·4%) | 230 (25·2%) | 474 (25·3%) | |
| Diabetes | 204 (21·3%) | 214 (23·4%) | 418 (22·3%) | |
| Heart disease | 47 (4·9%) | 64 (7·0%) | 111 (5·9%) | |
| High cholesterol | 43 (4·5%) | 61 (6·7%) | 104 (5·6%) | |
| HIV | 67 (7·0%) | 28 (3·1%) | 95 (5·1%) | |
| Asthma | 58 (6·0%) | 34 (3·7%) | 92 (4·9%) | |
| Kidney disease | 11 (1·1%) | 19 (2·1%) | 30 (1·6%) | |
| Rheumatological disorder | 18 (1·9%) | 9 (1·0%) | 27 (1·4%) | |
| Cancer | 14 (1·5%) | 12 (1·3%) | 26 (1·4%) | |
| Chronic lung disease | 11 (1·1%) | 14 (1·5%) | 25 (1·3%) | |
| Thyroid disease | 20 (2·1%) | 4 (0·4%) | 24 (1·3%) | |
| Depression | 11 (1·1%) | 10 (1·1%) | 21 (1·1%) | |
| Other | 126 (13·1%) | 97 (10·6%) | 223 (11·9%) | |
| Health sector | ||||
| Private | 687 (71·6%) | 724 (79·3%) | 1411 (75·3%) | |
| Public | 273 (28·4%) | 189 (20·7%) | 462 (24·7%) | |
| Received supplemental oxygen in hospital | 650 (67·7%) | 674 (73·8%) | 1324 (70·7%) | |
| Admitted to ICU | 265 (27·6%) | 347 (38·0%) | 612 (32·7%) | |
| Received invasive mechanical ventilation | 75 (7·8%) | 104 (11·4%) | 179 (9·6%) | |
| Received at least one dose of a COVID-19 vaccine | 478 (49·8%) | 464 (50·8%) | 942 (50·3%) | |
Data are n (%) or median (IQR). ICU=intensive care unit. NA=not applicable.