Table 1 |
|
|
Distribution of selected characteristics in 1745 pregnant women, Kyushu Okinawa Maternal and Child Health Study, Japan |
|
|
Variable |
n (%) |
|
|
|
|
Age, years, mean ± SD |
31.2 ± 4.3 |
|
Gestation, weeks, mean ± SD |
18.5 ± 5.4 |
|
Region of residence |
|
|
Fukuoka Prefecture |
971 (55.6) |
|
Other than Fukuoka Prefecture in Kyushu |
592 (33.9) |
|
Okinawa Prefecture |
182 (10.4) |
|
Having one or more older siblings |
914 (52.4) |
|
Having one or more children |
1042 (59.7) |
|
Having ever smoked |
563 (32.3) |
|
Ever experiencing secondhand smoke exposure at home |
1315 (75.4) |
|
Ever experiencing secondhand smoke exposure at work |
1106 (63.4) |
|
Family history of asthma |
330 (18.9) |
|
Family history of atopic eczema |
303 (17.4) |
|
Family history of allergic rhinitis |
759 (43.5) |
|
Household income, yen/year |
|
|
< 4,000,000 |
632 (36.2) |
|
4,000,000-5,999,999 |
618 (35.4) |
|
≥ 6,000,000 |
495 (28.4) |
|
Education, years |
|
|
< 13 |
428 (24.5) |
|
13-14 |
577 (33.1) |
|
≥ 15 |
740 (42.4) |
|
Body mass index, kg/m2, mean ± SD |
21.4 ± 2.8 |
|
|
|
|
Miyake et al. Nutrition Journal 2012 11:19 doi:10.1186/1475-2891-11-19 |
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