Table 4 Baseline characteristics and Percentage of wheezing incidence for each category
Wheezing in the last 12 months | ||||
|---|---|---|---|---|
yes | no | |||
variables | category | people | % | % |
Mid pregnancy pet keeping | No | 55538 | 17.1 | 82.9 |
Yes | 9301 | 18.9 | 81.1 | |
6 months old pet keeping | No | 53712 | 17.1 | 82.9 |
Yes | 11127 | 18.7 | 81.3 | |
1.5 years old pet keeping | No | 56740 | 17.1 | 82.9 |
Yes | 8099 | 19.0 | 81.0 | |
Child’s sex at birth | Male | 33161 | 19.7 | 80.3 |
Female | 31678 | 14.9 | 85.1 | |
Weeks of pregnancy at delivery | Premature birth (22-36 weeks) | 2782 | 23.0 | 77.0 |
Full-term birth (37-41 weeks) | 61900 | 17.1 | 82.9 | |
Others | 157 | 16.6 | 83.4 | |
Previous delivery | No | 28588 | 15.2 | 84.8 |
Yes | 36251 | 19.1 | 80.9 | |
Weight at birth | < 2,500 g | 4980 | 19.3 | 80.7 |
\(\ge\) 2,500 g | 59859 | 17.2 | 82.8 | |
Family members' smoking after the baby was born within 1 month of birth | No smoking | 32741 | 16.3 | 83.7 |
Smoking in the absence of babies | 30734 | 18.4 | 81.6 | |
Smoking in the presence of the baby | 1364 | 19.9 | 80.1 | |
Planned/emergent cesarean delivery | No | 52853 | 17.1 | 82.9 |
Yes | 11986 | 18.6 | 81.4 | |
Annual household income | <4 million JPY | 24896 | 17.9 | 82.1 |
4 - 6 million JPY | 21861 | 17.0 | 83.0 | |
\(\ge\) 6 million JPY | 18082 | 17.1 | 82.9 | |
Frequency of cleaning the living room floor | Every day | 10727 | 17.1 | 82.9 |
Once a week and over | 48867 | 17.5 | 82.5 | |
Less than once a week | 5245 | 16.5 | 83.5 | |
Frequency of cleaning the bedroom floor | Every day | 6709 | 16.9 | 83.1 |
Once a week and over | 49055 | 17.5 | 82.5 | |
Less than once a week | 9075 | 17.2 | 82.8 | |
Mother’s allergy and ear-nose-throat disease | Bronchial asthma; no | 58026 | 15.9 | 84.1 |
Bronchial asthma; yes | 6813 | 29.9 | 70.1 | |
Study Areas | Aichi | 3522 | 13.2 | 86.8 |
Miyagi | 5335 | 16.4 | 83.6 | |
Kyoto | 2716 | 19.4 | 80.6 | |
Koshin | 4526 | 16.3 | 83.7 | |
Kochi | 4231 | 17.3 | 82.7 | |
Kanagawa | 4332 | 15.9 | 84.1 | |
Chiba | 3622 | 16.6 | 83.4 | |
Osaka | 5304 | 12.7 | 87.3 | |
Tottori | 1851 | 21.5 | 78.5 | |
South Kyushu/Okinawa | 3607 | 29.2 | 70.8 | |
Toyama | 3852 | 15.3 | 84.7 | |
Fukuoka | 5110 | 17.8 | 82.2 | |
Fukushima | 8295 | 19.2 | 80.8 | |
Hyogo | 3478 | 13.8 | 86.2 | |
Hokkaido | 5058 | 18.4 | 81.6 | |