Demographic characteristics of immigrants screened in the study; selected characteristics (when data were available) are compared against those of immigrants who were not screened
| Variable | Immigrants who were screened (n=231) | Immigrants who did not attend (n=75)* | p Value |
| Age categories (years) | |||
| 16–25 | 87 (37.7%) | 23 (30.7%) | 0.39† |
| 26–35 | 84 (36.4%) | 33 (44.0%) | |
| 36–45 | 35 (15.2%) | 14 (18.7%) | |
| Over 45 | 25 (10.8%) | 5 (6.7%) | |
| Gender | |||
| Women | 149 (64.5%) | 43 (57.3%) | 0.27 |
| Men | 82 (35.5%) | 32 (42.7%) | |
| World region of origin‡ | |||
| Europe, North America | 16 (6.9%) | 5 (8.9%) | 0.57 |
| South America | 14 (6.1%) | 6 (10.7%) | 0.24 |
| Middle East | 19 (8.2%) | 3 (5.4%) | 0.59 |
| Other Africa | 5 (2.2%) | 3 (5.3%) | 0.20 |
| Other Asia | 98 (42.4%) | 17 (30.4%) | 0.13 |
| Indian subcontinent | 49 (21.2%) | 16 (28.6%) | 0.29 |
| Sub-Saharan Africa | 30 (12.9%) | 6 (10.7%) | 0.82 |
| TB incidence in country of origin‡ | |||
| 0–65 | 39 (16.9%) | 11 (19.6%) | 0.70 |
| 66–170 | 105 (45.5%) | 33 (58.9%) | 0.08 |
| 171–300 | 74 (32.0%) | 11 (19.6%) | 0.08 |
| >300 | 13 (5.6%) | 1 (1.8%) | 0.32 |
| Time since entry to the UK (years) | |||
| <1 | 38 (15.6%) | ||
| 1–2 | 107 (46.3%) | ||
| 3–5 | 88 (38.1%) | ||
| BCG vaccinated§ | |||
| No | 37 (16.3%) | ||
| Yes | 190 (83.7%) | ||
| History of TB contact¶ | |||
| No | 216 (94.3%) | ||
| Yes | 13 (5.7%) | ||
| Travel to TB endemic country | |||
| No | 161 (69.7%) | ||
| Yes | 70 (30.3%) | ||
| Employed | |||
| Student | 66 (28.6%) | ||
| No/housewife | 66 (28.6%) | ||
| Yes | 99 (28.6%) | ||
| History of imprisonment | |||
| No | 228 (98.7%) | ||
| Yes | 3 (1.3%) | ||
| Previous HIV test** | |||
| No | 139 (60.2%) | ||
| Yes | 85 (36.8%) | ||
| Unsure | 7 (3.0%) | ||
| Current smoker | |||
| No | 195 (84.4%) | ||
| Yes | 36 (15.6%) | ||
| Consumes alcohol | |||
| No | 169 (73.2%) | ||
| Yes | 62 (26.8%) | ||
↵* Selected characteristics (when data were available) are compared against those of immigrants who were not screened.
↵† p Value refers to overall comparison of age groups between immigrants who were screened and immigrants who did not attend.
↵‡ For immigrants who were not screened, data on world region of origin and TB incidence in country of origin were available for 56 individuals.
↵§ Data available for 227 individuals.
↵¶ Data available for 229 individuals.
↵** HIV testing was not undertaken in this study but no subjects self-reported themselves as being HIV positive.
BCG, bacille Calmette Guérin; TB, tuberculosis.