Demographics of study participants
| All participants, n (%) | Seropositive, n (%) | Seronegative, n (%) | Seroprevalence (%) | P value | |
| n | 516 | 126 | 390 | 24.4 | |
| Age (years) | 42 (30–51) | 41 (30–51) | 42 (31–51) | 0.48 | |
| Sex | |||||
| Male | 128 (24.8) | 24 (19.0) | 104 (26.7) | 18.8 | 0.09* |
| Female | 388 (75.2) | 102 (81.0) | 286 (73.3) | 26.3 | |
| Ethnicity | |||||
| Asian British Bangladeshi | 2 (0.4) | 2 (1.6) | 0 (0.0) | 100.0 | 0.18† |
| Asian British Indian | 25 (4.8) | 6 (4.8) | 19 (4.9) | 24.0 | |
| Asian British other/not stated | 18 (3.5) | 3 (2.4) | 15 (3.8) | 16.7 | |
| Asian British Pakistani | 11 (2.1) | 4 (3.2) | 7 (1.8) | 36.4 | |
| Black African | 10 (1.9) | 5 (4.0) | 5 (1.3) | 50.0 | |
| Black British | 17 (3.3) | 5 (4.0) | 12 (3.1) | 29.4 | |
| Filipino | 21 (4.1) | 6 (4.8) | 15 (3.8) | 28.6 | |
| Mixed heritage | 10 (1.9) | 4 (3.2) | 6 (1.5) | 40.0 | |
| Not disclosed | 74 (14.3) | 15 (11.9) | 59 (15.1) | 20.3 | |
| Other | 13 (2.5) | 5 (4.0) | 8 (2.1) | 38.5 | |
| White Irish | 5 (1.0) | 1 (0.8) | 4 (1.0) | 20.0 | |
| White other | 25 (4.8) | 4 (3.2) | 21 (5.4) | 16.0 | |
| White British | 285 (55.2) | 66 (52.3) | 219 (56.2) | 23.2 |
P values pertain to analysis of differences between seropositive and seronegative groups.
Median and IQR are provided.
*χ2=16.25, df=12.
†χ2=2.964, df=1, Z=1.722.