Table 3.

Results of multivariate logistic regression analysis of the FFI rate (N=496)

Factors	Category	OR (95% CI)	p
Age group (year)	26–35	1
	36–40	0.58 (0.25–1.05)	.082
Marital status	Unmarried†	1
	Married	0.81 (0.61–1.17)	.413
Education level	High school or lower	1
	College or university	1.46 (1.08–2.64)	.014
	Higher	0.84 (0.50–1.55)	.183
Employment status	Regular worker	1
	Non-regular worker	0.61 (0.47–0.93)	.038
	Self-employed	1.23 (0.91–1.87)	.066
	Unpaid family worker	0.49 (0.21–0.83)	.038
	Unreported	0.58 (0.48–0.88)	.032
Weekly working time (hour)	≤20	1
	21–40	2.37 (1.32–4.23)	.004
	41–50	2.49 (1.34–4.62)	.004
	>50	1.67 (0.84–3.30)	.139
Number of children	0	1
	1	0.25 (0.15–0.39)	<.001
	2	0.11 (0.06–0.18)	<.001
	3–4	0.04 (0.02–0.14)	<.001
Age at first sexual education	Elementary school	1
	Middle school	0.70 (0.25–1.29)	.064
	High school	0.54 (0.35–0.83)	.006
	Adulthood	2.05 (1.36–3.06)	<0.001
	Never received	0.31 (0.17–0.54)	<.001
Monthly income (Korean won)‡	≤2 million	1
	2.01–4 million	1.43 (0.95–2.09)	.088
	4.01–6 million	1.21 (0.83–2.02)	.131
	>6 million	1.61 (0.92–4.42)	.072
Possible to have children without getting married	No	1
	Yes	0.91 (0.73–1.13)	.419
Must have children after marriage	No	1
	Yes	3.92 (3.01–5.11)	<.001
Children strengthen the relationship between a couple	No	1
	Yes	6.45 (4.09–10.13)	<.001
Motherhood is a sacred	No	1
	Yes	2.24 (1.69–2.96)	<.001
Abortion should be allowed without penalty or disadvantage	No	1
	Yes	0.45 (0.31–0.65)	<.001
Korean family culture is equal for women	No	1
	Yes	1.28 (1.05–1.68)	.022
Korean workplace culture is equal for women	No	1
	Yes	1.36 (1.03–1.78)	.042

The odds ratio (OR) and corresponding 95% confidence interval (CI) were calculated against “no future fertility intentions” as the reference.

^†Including single mothers.

^‡One million Korean won is approximately 790 US dollars.