Table 3 Number of the children with history of pneumonia in 2001 and 2016 study participants among the overall cohort and the wheezing group
Age of the pneumonia history | Number of children with a history of pneumonia n (%) | (χ2 test) | |
|---|---|---|---|
Overall cohort | |||
|  | 2001 (n = 1580) | 2016 (n = 1658) | p |
0 years | 287 (18.2%) | 36 (2.2%) | < 0.001 |
1 year | 185 (11.7%) | 24 (1.4%) | < 0.001 |
2 years | 101 (6.4%) | 30 (1.8%) | < 0.001 |
3–4 years | 30 (0.9%) | 24 (0.7%) | 0.196 |
Wheezing group | |||
|---|---|---|---|
|  | 2001 (n = 219) | 2016 (n = 145) | p |
0 years | 56 (25.6%) | 4 (2.8%) | < 0.001 |
1 year | 44 (20.1%) | 7 (4.8%) | < 0.001 |
2 years | 36 (16.4%) | 12 (8.3%) | < 0.001 |
3–4 years | 15 (3.4%) | 10 (3.4%) | 1.000 |