Table 2. Multivariate analysis of the factors associated with caesarean delivery (n = 1350).

	Restricted model			Complete model
	OR	95% CI		OR	95% CI
Place of residence (reference = rural)
Urban	2.25**	1.74	2.90	1.98**	1.48	2.67
Place of delivery (reference = public sector)
Private sector	1.34	0.81	2.20	1.27	0.75	2.15
Antenatal care visits (reference = 4 to 7)
3 and less	0.78	0.54	1.12	0.83	0.56	1.23
8 or more	1.49**	1.11	2.00	1.49**	1.08	2.05
Weight of newborn (reference = 2.5 to 3.5 kg)
Less than 2.5 kg	1.96**	1.09	3.53	2.16**	1.18	3.95
Over 3.5 kg	1.61**	1.11	2.34	1.56**	1.07	2.28
Maternal age at delivery (reference = 20–34)
15–19	0.58	0.32	1.03	0.67	0.37	1.21
35–49	2.09**	1.40	3.14	2.18**	1.44	3.31
Parity (reference = multiparous)
Primiparous	1.42**	1.07	1.89	1.39**	1.04	1.86
Women’s education (reference = secondary)
Primary or less				1.06	0.68	1.65
Tertiary				1.28	0.91	1.80
Household wealth quintile (reference = Poorest)
Poor				1.14	0.66	1.96
Middle				1.16	0.74	1.83
Rich				0.90	0.57	1.40
Richest				1.43	0.90	2.27
Ethnicity (reference = Kinh and Hoa)
Ethnic minorities				0.62**	0.41	0.96
Region (reference = North Central)
Mekong River Delta				0.79	0.52	1.22
Red River Delta				0.59**	0.38	0.91
Northern Midlands				1.06	0.71	1.57
Central Highlands				0.52	0.33	1.09
Southeast				0.78	0.51	1.20

Abbreviations and signs: CS, cesarean section; OR, odds ratio; CI, confidence interval;

**, p ≤ 0.05;

*, p ≤ 0.10

Data are from the 2014 Vietnam Multiple Indicator Cluster Survey (MICS)