Table 2 Cases and prevalence of developmental delay at four time points in various areas of the ASQ-3 and the total number of cases according to use or nonuse of air purifiers.
Communication | Gross motor | Fine motor | Problem solving | Personal-social | Total number | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
n | (%) | n | (%) | n | (%) | n | (%) | n | (%) | M | S.E.M | |
1.5 years | ||||||||||||
AP use a | 954 | (2.3) | 1889 | (4.5) | 1622 | (3.9) | 1460 | (3.5) | 963 | (2.3) | 0.16 | ± 0.0029 |
AP nonuse b | 1061 | (2.6) | 2201 | (5.4) | 1848 | (4.6) | 1797 | (4.4) | 1124 | (2.8) | 0.20 | ± 0.0032 |
2.0 years | ||||||||||||
AP use a | 1583 | (3.8) | 2390 | (5.7) | 879 | (2.1) | 1634 | (3.9) | 1035 | (2.5) | 0.18 | ± 0.0031 |
AP nonuse b | 1746 | (4.3) | 2632 | (6.5) | 1013 | (2.5) | 1996 | (4.9) | 1309 | (3.2) | 0.21 | ± 0.0033 |
2.5 years | ||||||||||||
AP use a | 1842 | (4.4) | 1766 | (4.2) | 2138 | (5.1) | 2172 | (5.2) | 1375 | (3.3) | 0.22 | ± 0.0035 |
AP nonuse b | 2060 | (5.1) | 1923 | (4.8) | 2447 | (6.0) | 2435 | (6.0) | 1529 | (3.8) | 0.26 | ± 0.0039 |
3.0 years | ||||||||||||
AP use a | 1587 | (3.8) | 1760 | (4.2) | 2880 | (6.9) | 2765 | (6.6) | 1342 | (3.2) | 0.25 | ± 0.0038 |
AP nonuse b | 1712 | (4.2) | 1980 | (4.9) | 3243 | (8.0) | 3032 | (7.5) | 1491 | (3.7) | 0.28 | ± 0.0041 |
