1999 | 2000 | 2001 | 1999–2000 | ||||
---|---|---|---|---|---|---|---|
I | C | I | C | I | C | Comparison of prevalence change between I and C | |
†Arthritis or rheumatism, or both. | |||||||
*Includes bronchitis but excludes those with asthma. | |||||||
C, control; I, intervention. | |||||||
Number (%) | 207 | 263 | 193 | 254 | 187 | 239 | p Value |
Suffering from: | |||||||
Asthma | 58 (28) | 66 (25) | 40 (21) | 55 (22) | 27 (14) | 34 (14) | 0.36 |
Arthritis | 16 (8) | 26 (10) | 16 (8) | 20 (8) | 18 (10) | 27 (11) | 0.93 |
Rheumatism | 8 (4) | 6 (2) | 14 (7) | 10 (4) | 3 (2) | 9 (4) | 0.65 |
Arthritis/rheumatism† | 22 (11) | 29 (11) | 25 (13) | 26 (10) | 20 (11) | 31 (13) | 0.99 |
Bronchitis | 7 (3) | 17 (7) | 13 (7) | 17 (7) | 6 (3) | 6 (3) | 0.52 |
Other respiratory* | 24 (12) | 19 (7) | 22 (11) | 29 (11) | 16 (9) | 19 (8) | 0.005 |