Characteristics | Group 1 (N = 36) | Group 2 (N = 117) | Group 3 (N = 64) | Group 4 (N = 40) | P value |
---|---|---|---|---|---|
Age, years (IQR) | 34 (30, 41) | 44 (36, 60) | 56 (46, 64) | 65 (52, 69) | < 0.001 |
Male sex, n (%) | 18 (50.0%) | 59 (50.4%) | 31 (48.4%) | 23 (57.5%) | 0.832 |
Smoking, n (%) | 4 (11.1%) | 7 (6.0%) | 5 (7.8%) | 4 (10.0%) | 0.630 |
Symptoms | |||||
Fever | 28 (77.8%) | 99 (84.6%) | 50 (78.1%) | 37 (92.5%) | 0.204 |
Cough | 28 (77.8%) | 94 (80.3%) | 57 (89.1%) | 31 (77.5%) | 0.346 |
Diarrhoea | 4 (11.1%) | 27 (23.1%) | 11 (17.2%) | 7 (17.5%) | 0.406 |
Comorbidity | |||||
Cardiovascular disease | 0 (0%) | 9 (7.7%) | 5 (7.8%) | 4 (10.0%) | 0.289 |
Hypertension | 1 (2.8%) | 30 (25.6%) | 15 (23.4%) | 13 (32.5%) | 0.013 |
Coronary heart disease | 0 (0%) | 9 (7.7%) | 5 (7.8%) | 4 (10.0%) | 0.289 |
Diabetes | 0 (0%) | 14 (12.0%) | 5 (7.8%) | 8 (20.0%) | 0.021 |
Chronic obstructive pulmonary disease | 0 (0%) | 1 (0.9%) | 4 (6.2%) | 1 (2.5%) | 0.100 |
Cancer | 2 (5.6%) | 1 (0.9%) | 3 (4.7%) | 0 (0%) | 0.108 |