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Volume 17, Number 3—March 2011

Dispatch

Tuberculosis in Kindergarten and Primary School, Italy, 2008–2009

Antonietta FiliaComments to Author , Giuseppe Ciarrocchi, Rossana Belfiglio, Monaldo Caferri, Antonino Bella, Claudio Piersimoni, Daniela Cirillo, Gualtiero Grilli, Cristina Mancini, and Donato Greco
Author affiliations: Author affiliations: National Health Institute, Rome, Italy (A. Filia, A. Bella, D. Greco); Local Health Authority Marche Region, Ancona, Italy (G. Ciarrocchi, R. Belfiglio, M. Caferri); United Hospitals, Ancona (C. Piersimoni); Regional Reference Mycobacterial Laboratory, Ancona (C. Piersimoni); San Raffaele Scientific Institute, Milan, Italy (D. Cirillo); Regional Healthcare Agency Marche Region, Ancona (G. Grilli, C. Mancini)

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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.

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