Yield of screening and incidence of all tuberculosis(TB) cases during follow-up period (6–29 months) for individuals with normal chest radiography at entry#
| Follow-up person-yrs | Screenings in rounds 2–5 n | TB patients n | Yield¶ (95% CI) | Incidence+ (95% CI) | |||
| Detected | Found passively | Total | |||||
| Age yrs | |||||||
| 13–24 | 57059 | 33237 | 7 | 16 | 23 | 21 (8–43) | 40 (26–60) |
| 25–34 | 57500 | 34693 | 14 | 21 | 35 | 40 (22–68) | 61 (41–81) |
| 35–44 | 18296 | 11910 | 8 | 5 | 13 | 67 (29–132) | 71 (38–122) |
| >45 | 6160 | 3811 | 1 | 2 | 3 | 26 (1–146) | 49 (10–142) |
| Unknown | 10 | ||||||
| Sex | |||||||
| Male | 56549 | 33232 | 10 | 19 | 29 | 30 (14–55) | 51 (34–74) |
| Female | 82194 | 50340 | 20 | 25 | 45 | 40 (24–61) | 55 (39–71) |
| Unknown | 283 | 79 | 0 | 0 | 0 | ||
| Nationality | |||||||
| Morocco | 23355 | 17365 | 5 | 10 | 15 | 29 (9–67) | 64 (36–106) |
| Turkey | 21575 | 15808 | 1 | 0 | 1 | 6 (0–35) | 5 (0–26) |
| Africa except Morocco | 15187 | 7998 | 5 | 8 | 13 | 63 (20–146) | 86 (46–146) |
| Asia except Turkey | 38097 | 21854 | 15 | 20 | 35 | 69 (38–113) | 92 (61–122) |
| Central and Eastern Europe | 25973 | 12821 | 2 | 4 | 6 | 16 (2–56) | 23 (8–50) |
| Other | 10603 | 5810 | 0 | 1 | 1 | 9 (0–53) | |
| Unknown | 4236 | 1995 | 2 | 1 | 3 | 100 (12–362) | 71 (15–207) |
| Incidence in country of origin§ | |||||||
| <100 | 56079 | 33798 | 3 | 3 | 6 | 9 (2–26) | 11 (4–23) |
| 100–200 | 56702 | 35549 | 13 | 20 | 33 | 37 (19–63) | 58 (38–78) |
| >200 | 22003 | 12300 | 12 | 20 | 32 | 98 (50–170) | 145 (95–196) |
| Unknown | 4242 | 2004 | 2 | 1 | 3 | 100 (12–360) | 71 (15–207) |
| Entry cohort | |||||||
| 1998 | 11369 | 7340 | 3 | 4 | 7 | 41 (8–119) | 62 (25–127) |
| 1999 | 18455 | 12156 | 6 | 6 | 12 | 49 (18–107) | 65 (34–114) |
| 2000 | 24732 | 15663 | 6 | 8 | 14 | 38 (14–83) | 57 (31–95) |
| 2001 | 36664 | 21886 | 5 | 11 | 16 | 23 (7–53) | 44 (25–71) |
| 2002 | 47806 | 26606 | 10 | 15 | 25 | 38 (18–69) | 52 (34–77) |
| Total | 139026 | 83651 | 30 | 44 | 74 | 36 (23–49) | 53 (41–65) |
CI: confidence interval. #: n = 58,529; ¶: per 100,000 screenings in rounds 2–5; +: defined as number of cases detected through screening plus number of cases detected passively, per 100,000 person-yrs follow-up; §: estimated incidence of total TB per 100,000 individuals in 2002 according to the World Health Organization.