Indicators | 0 ~ < 1 year (n = 440) | 1 ~ < 3 year (n = 137) | 3 ~ < 6 year (n = 239) | 6 ~ 14 year (n = 27) | χ2 | P Value |
---|---|---|---|---|---|---|
Lung infection | 68(15.74%) | 26(19.55%) | 46(19.66%) | 0(0.00%) | 13.36 | 0.004 |
Texture thickening | 12(2.78%) | 9(6.77%) | 6(2.56%) | 2(7.41%) | 8.42 | 0.038 |
Capillary bronchitis | 16(3.70%) | 4(3.01%) | 12(5.13%) | 0(0.00%) | 5.58 | 0.134 |
Bronchitis | 261(60.42%) | 63(47.37%) | 132(56.41%) | 18(66.67%) | 9.16 | 0.027 |
Nothing out of the ordinary | 75(17.36) | 31(23.31%) | 38(16.24%) | 7(25.93%) | 13.26 | 0.004 |
Unchecked | 8 | 4 | 5 | 0 | - | - |