Rates (per 100 000 person-years) of HIV testing recorded in general practice in 2005 by age group, deprivation level and rural/urban indicators stratified by London versus outside of London, females, excluding antenatal tests
| Covariate | London | Outside London, UK | ||||||
| n | Rate (per 100 000 person-year) | IRR (95% CI) | p Value | n | Rate (per 100 000 person-year) | IRR (95% CI) | p Value | |
| All | 212 | 117.64 | – | – | 704 | 53.48 | – | – |
| Level of deprivation | ||||||||
| Quintile 1 (least deprived) | 21 | 114.81 | 1 | 135 | 43.15 | 1 | ||
| Quintiles 2–4 | 142 | 105.08 | 0.92 (0.58 to 1.45) | 411 | 57.18 | 1.32 (1.09 to 1.61) | ||
| Quintile 5 (most deprived) | 49 | 182.96 | 1.59 (0.96 to 2.66) | 0.004 | 158 | 55.51 | 1.29 (1.02 to 1.62) | 0.016 |
| Rural/urban indicator | ||||||||
| Urban | 207 | 117.80 | 1 | 587 | 58.14 | 1 | ||
| Intermediate | 5 | 111.45 | 0.95 (0.39 to 2.30) | 0.903 | 90 | 40.60 | 0.70 (0.56 to 0.87) | |
| Rural | NA | NA | NA | 27 | 31.77 | 0.55 (0.37 to 0.80) | 0.001 | |
| Age group, years | ||||||||
| <16 | 6 | 16.44 | 1 | 64 | 21.40 | 1 | ||
| 16–19 | 4 | 59.34 | 3.61 (1.02 to 12.79) | 27 | 54.30 | 2.54 (1.62 to 3.98) | ||
| 20–24 | 27 | 246.27 | 14.98 (6.19 to 36.29) | 70 | 118.05 | 5.52 (3.93 to 7.74) | ||
| 25–34 | 73 | 226.96 | 13.81 (6.01 to 31.74) | 240 | 162.26 | 7.58 (5.76 to 9.99) | ||
| 35–44 | 81 | 271.90 | 16.54 (7.22 to 37.91) | 200 | 105.13 | 4.91 (3.71 to 6.51) | ||
| 45+ | 21 | 32.79 | 1.99 (0.81 to 4.94) | <0.001 | 103 | 18.07 | 0.84 (0.62 to 1.15) | <0.001 |
NA signifies “not applicable” since there are no areas in London classified as rural.