Table 1 Descriptive characteristics of confirmed COVID-19 cases in Shanghai between December 2, 2021, and May 13, 2022
Variable | SARS-CoV-2 infection (n = 612,597) | Control 1 (n = 612,597) | Severe or critical illness (n = 1485) | Control 2 (n = 5940) | Death (n = 568) | Control 3 (n = 2272) |
|---|---|---|---|---|---|---|
Age (median, IQR) | 45 (31, 58) | 45 (31, 58) | 83 (72, 89) | 83 (72, 89) | 86 (77, 90) | 86 (77, 90) |
Age group (%) | ||||||
3–17 years | 35,553 (5.8) | 35,553 (5.8) | 1 (0.1) | 4 (0.1) | - | - |
18–39 years | 216,769 (35.4) | 216,769 (35.4) | 13 (0.9) | 52 (0.9) | 2 (0.3) | 8 (0.3) |
40–59 years | 228,387 (37.3) | 228,387 (37.3) | 95 (6.4) | 380 (6.4) | 22 (3.9) | 88 (3.9) |
60–79 years | 112,635 (18.4) | 112,635 (18.4) | 506 (34.0) | 2024 (34.0) | 147 (25.9) | 588 (25.9) |
≥ 80 years | 19,253 (3.1) | 19,253 (3.1) | 870 (58.6) | 3480 (58.6) | 397 a(69.9) | 1588 (69.9) |
Gender (%) | ||||||
Female | 273,152 (44.6) | 273,152 (44.6) | 654 (44.0) | 2616 (44.0) | 267 (47.0) | 1068 (47.0) |
Male | 339,445 (56.4) | 339,445 (56.4) | 831 (56.0) | 3324 (56.0) | 301 (56.0) | 1204 (56.0) |
Residential district (%) | ||||||
Urban | 225,697 (36.8) | 225,697 (36.8) | 816 (54.9) | 3264 (54.9) | 314 (55.3) | 1256 (55.3) |
Rural | 386,900 (63.2) | 386,900 (63.2) | 669 (45.1) | 2676 (45.1) | 254 (44.7) | 1016 (44.7) |