Table 3.

Multinomial logistic regression for the preference of delivery mode (reference group of outcome variable=VB)

	CS	No clear preference
	Adjusted RRR (95% CI)	Adjusted RRR (95% CI)
Age (years)
Under 40	Ref	Ref
40 and above	4.21 (1.43–12.40)**	1.78 (0.49–6.49)
Ethnicity
Han	Ref	Ref
Minority	2.00 (1.17–3.41)*	0.98 (0.60–1.59)
Parity
Nulliparous	Ref	Ref
Multiparous	1.34 (0.71–2.52)	0.63 (0.36–1.10)
Self-evaluated difficulty in getting pregnant
Easy	Ref	Ref
Normal	0.98 (0.56–1.70)	1.33 (0.87–2.03)
Difficult	2.23 (1.20–4.13)*	1.97 (1.16–3.77)*
Doctor’s suggestion
VB	Ref	Ref
CS	5.23 (0.99–27.45)	5.44 (1.31–22.69)*
No clear suggestion	1.82 (0.73 –4.50)	1.89 (0.89–4.02)
Husband’s preference toward CS
No	Ref	Ref
Yes	7.62 (4.00–14.54)***	1.65 (0.72–3.77)
Ideal children number
0 or 1	Ref	Ref
2 or more	0.37 (0.22–0.61)***	0.73 (0.48–1.09)
Choosing lucky day for delivery
No	Ref	Ref
Yes	12.36 (6.62–23.08)***	3.22 (1.60–6.50)**

Notes:

^***P<0.001,

^**P<0.01,

^*P<0.05.

Abbreviations: VB, vaginal birth; CS, cesarean section; Ref, reference group of predictors; RRR, relative risk ratio.