Table 6.

Logistic regression models of socioeconomic indicators and unintentional injuries

Factors	OR (95% CI)	P values
Family type	0.60 (0.23 to 1.53)	0.283
Age of mother		0.433
<29 years	1 (reference)
30–39 years	0.68 (0.37 to 1.22)	0.196
≥40 years	0.69 (0.34 to 1.37)	0.285
Age of father		0.849
<29 years	1 (reference)
30–39 years	1.23 (0.58 to 2.61)	0.596
≥40 years	1.27 (0.56 to 2.85)	0.570
Education of mother		0.284
High school	1 (reference)
Business technical school or junior college	1.20 (0.82 to 1.82)	0.334
College	0.90 (0.57 to 1.40)	0.629
Education of father		0.504
High school	1 (reference)
Business technical school or junior college	0.78 (0.47 to 1.29)	0.339
College	0.81 (0.54 to 1.21)	0.299
Number of children		0.168
1	1 (reference)
2	1.51 (0.98 to 2.31)	0.059
≥3	1.49 (0.79 to 2.79)	0.215
Infant (<1 year old)	0.78 (0.49 to 1.23)	0.278
Older siblings (>6 years old)	0.91 (0.58 to 1.43)	0.682
Living with grandmother	0.87 (0.52 to 1.47)	0.606
Living with grandfather	1.17 (0.83 to 1.65)	0.383
Mother’s employment status	0.99 (0.67 to 1.47)	0.976
Father’s employment status	0.79 (0.20 to 3.12)	0.737
Use of sitter, kindergarten or nursery school	1.38 (0.88 to 2.16)	0.165
Type of housing	0.97 (0.69 to 1.36)	0.836
Annual income (Yen)		0.849
<3 million	1 (reference)
3–5 million	0.99 (0.58 to 1.69)	0.977
>5 million	0.90 (0.53 to 1.53)	0.701