Table 1 Distribution of selected characteristics in 1745 women, Kyushu Okinawa Maternal and Child Health Study, Japan, April 2007 to March 2008
Variable | n (%) |
|---|---|
Age, years, mean ± SD | 31.2 ± 4.4 |
Gestation, weeks, mean ± SD | 18.5 ± 5.4 |
Region of residence | |
Fukuoka Prefecture | 970 (55.6) |
Other than Fukuoka Prefecture in Kyushu | 593 (34.0) |
Okinawa Prefecture | 182 (10.4) |
Number of children | |
0 | 703 (40.3) |
1 | 690 (39.5) |
≥ 2 | 352 (20.2) |
Nuclear family structure | 1474 (84.5) |
Family income, yen/year | |
< 4,000,000 | 633 (36.3) |
4,000,000–5,999,999 | 620 (35.5) |
≥ 6,000,000 | 492 (28.2) |
Education, years | |
< 13 | 430 (24.6) |
13–14 | 575 (33.0) |
≥ 15 | 740 (42.4) |
Job typea | |
Unemployed | 707 (40.5) |
Professional or technical | 433 (24.8) |
Clerical or related occupation | 328 (18.8) |
Sales | 83 (4.8) |
Service | 115 (6.6) |
Production | 51 (2.9) |
Othersb | 28 (1.6) |
History of depression | 84 (4.8) |
Family history of depression | 175 (10.0) |