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Table 1 Distribution of selected characteristics in 1741 women, KOMCHS, Japan

From: Employment, income, and education and prevalence of depressive symptoms during pregnancy: the Kyushu Okinawa Maternal and Child Health Study

Variable

Mean ± SD or n(%)

Age, years, mean ± SD

31.2 ± 4.4

Gestation, weeks, mean ± SD

18.5 ± 5.4

Region of residence

 

 Fukuoka Prefecture

969 (55.7)

 Other than Fukuoka Prefecture in Kyushu

590 (33.9)

 Okinawa Prefecture

182 (10.5)

Number of children

 

 0

700 (40.2)

 1

689 (39.6)

 ≥ 2

352 (20.2)

Nuclear family structurea

1471 (84.5)

History of depression

82 (4.7)

Family history of depression

174 (10.0)

Having ever smoked

562 (32.3)

Ever experiencing secondhand smoke exposure at home

1313 (75.4)

Ever experiencing secondhand smoke exposure at work

1103 (63.4)

  1. a Family consisting of parents and their children.