Volume 17, Number 3—March 2011
Dispatch
Tuberculosis in Kindergarten and Primary School, Italy, 2008–2009
Table 2
Attack rates for of children with latent and active tuberculosis in 2 kindergartens and primary school, Italy, 2008–2009*
| School class and grade | No. students | Median age, y (range) | No. latent TB/no. tested (%) | No. active TB/no. tested (%) | No. infected/no. tested (%) |
|---|---|---|---|---|---|
| Kindergarten 1 | 107 | 4 (3–6) | 16/103 (15.5) | 13/103 (12.6) | 29/103 (28.2)† |
| Class A | 23 | 4 (4–6) | 2/22 (9.1) | 4/22 (18.2) | 6/22 (27.3) |
| Class B | 28 | 5 (4–6) | 7/27 (25.9) | 4/27 (14.8) | 11/27 (40.7) |
| Class C | 28 | 4 (3–4) | 5/26 (19.2) | 4/26 (15.4) | 9/26 (34.6) |
| Class D |
28 |
3 (3–3) |
2/28 (7.1) |
1/28 (3.6) |
3/28 (10.7) |
| Kindergarten 2 |
82 |
4 (2–6) |
3/81 (3.7) |
3/76 (3.9) |
6/81 (7.4) |
| Primary school | 199 | 8 (5–11) | 24/199 (12.1) | 3/192 (1.6) | 27/199 (13.6) |
| Grade 1 | 45 | 6 (5–8) | 16/45 (35.6) | 3/45 (6.7) | 19/45 (42.2)† |
| Grade 2 | 29 | 7 (6–7) | 3/29 (10.3) | 0/26 (0.0) | 3/29 (10.3) |
| Grade 3 | 40 | 8 (7–9) | 1/40 (2.5) | 0/38 (0.0) | 1/40 (2.5) |
| Grade 4 | 47 | 9 (9–11) | 2/47 (4.3) | 0/47 (0.0) | 2/47 (4.3) |
| Grade 5 |
38 |
10 (9–10) |
2/38 (5.3) |
0/36 (0.0) |
2/38 (5.3) |
| Total | 388 | 6 (2–11) | 43/383 (11.2) | 19/371 (5.1) | 62/383 (16.2) |
*TB, tuberculosis.
†p<0.001 by χ2 test or, when appropriate, Fisher exact test or χ2 test for trend.


