Baseline (1986–93) characteristics of the initial cohort of sex workers, comparing those followed up long term with those lost to follow up after 1993
| Followed up after 1993 | p Value | |||
|---|---|---|---|---|
| Yes (n = 130) | No (n = 255) | |||
| No (%) | No (%) | |||
| IQR, interquartile range. | ||||
| Age | Range | 16–51 | 17–52 | |
| Median (IQR) | 27 (23, 31) | 24 (22, 29) | 0.01 | |
| Country of birth | UK | 95/124 (77) | 144/205 (70) | 0.21 |
| Ethnicity | White (British) | 78/119 (73) | 127/166 (76) | |
| Age left full time education (years) | <16 | 30 (31) | 43 (26) | 0.55 |
| 16–18 | 55 (57) | 106 (64) | ||
| >18 | 12 (12) | 18 (11) | ||
| Missing | 33 | 167 | ||
| Injection drug use | Ever | 13/117 (11) | 15/219 (7) | 0.19 |
| Months in sex work | Range | 1–216 | 1–324 | |
| Median (IQR) | 36 (15, 72) | 21 (8, 52) | 0.003 | |
| Sex work sector | Street | 25 (21) | 31 (15) | 0.04 |
| Escort | 55 (45) | 113 (45) | 0.97 | |
| Sauna | 16 (31) | 28 (11) | 0.81 | |
| Flat | 24 (20) | 46 (18) | 0.91 | |
| Other | 2 (2) | 1 (1) | 0.26 | |
| Missing | 8 | 6 | ||