Table 5. Age of the first asthma attack of children in three areas [n (%)].
Group | n | Below 4 | 4-7-year-old | 7-14-year-old |
---|---|---|---|---|
Urban area | 551 | 422 (76.6) | 99 (18.0) | 30 (5.5) |
Suburban area | 150 | 122 (81.3) | 19 (12.7) | 9 (6.0) |
Rural area | 142 | 110 (77.5) | 21 (14.8) | 11 (7.8) |