Table 1.
SARS-CoV-2 primary infection and possible reinfection by sex, age, ethnicity in the population crude and adjusted odds ratio, January 2020 until April 2021, England.
| COVID-19 infections | ||||||
|---|---|---|---|---|---|---|
| Variable | Category | Primary infections n(%) | Reinfections n(%) | Crude OR(95% CI) | Adjusted* OR(95% CI) | LRT p-value |
| Sex n = 3845,990 | Women | 2050,929 (53.52) | 9316 (67.28) | 1 | 1 | |
| Men | 1781,214 (46.48) | 4531 (32.72) | 0.56 (0.54–0.58) | 0.58 (0.56–0.60) | p<0.0001 | |
| Age group (Years) n = 3865,600 | <20 | 587,044 (15.24) | 866 (6.20) | 0.48 (0.44–0.52) | 0.49 (0.45–0.53) | |
| 20 to 29 | 705,245 (18.31) | 2178 (15.61) | 1 | 1 | ||
| 30 to 39 | 687,201 (17.84) | 2151 (15.41) | 1.01 (0.95–1.08) | 1.02 (0.96–1.08) | ||
| 40 to 49 | 599,209 (15.56) | 2070 (014.83) | 1.12 (1.05–1.19) | 1.12 (1.06–1.19) | ||
| 50 to 59 | 573,819 (14.90) | 2326 (16.67) | 1.31 (1.24–1.39) | 1.33 (1.25–1.41) | ||
| 60 to 69 | 307,054 (7.97) | 1250 (8.96) | 1.32 (1.23–1.41) | 1.35 (1.26–1.45) | ||
| 70 to 79 | 173,946 (4.52) | 902 (6.46) | 1.68 (1.56–1.82) | 1.73 (1.60–1.87) | ||
| 80+ | 218,125 5.66) | 2214 (15.86) | 3.29 (3.10–3.49) | 3.19 (3.01–3.39) | ||
| Ethnicity n = 3016,037 | Asian | 453,519 (15.10) | 1648 (12.39) | 0.79 (0.75–0.83) | 0.59 | |
| Black | 131,234 (4.37) | 576 (4.33) | 0.95 (0.87–1.03) | |||
| Mixed | 71,850 (2.39) | 202 (1.52) | 0.61 (0.53–0.70) | |||
| Other | 56,741 (1.89) | 282 (2.12) | 1.07 (0.95–1.21) | |||
| White | 2289,391 (76.24) | 10,594 (79.64) | 1 | |||
⁎
Odd ratios adjusted for all variable in table provided the p-value for the likelihood ratio test is <0.05.