TABLE 4. Multivariate Logistic Regression Analysis on Trends in the Cesarean Delivery Rate by Place of Delivery, Stratified by Birth Weight and Birth Multiplicity According to Year of Survey

	Public Hospitals (N = 10,496)		Private Hospitals (N = 5,627)
	No. (%)	aOR (95% CI)	No. (%)	aOR (95% CI)
By Birth Weight
Normal
2002	247 (14.8)	1.00	181 (19.1)	1.00
2007	525 (17.0)	1.17 (0.99–1.39)	365 (19.9)	1.00 (0.82–1.23)
2012	877 (27.4)	2.06 (1.76–2.42)^***	519 (30.4)	1.71 (1.41–2.09)^***
Low/High
2002	128 (22.9)	1.00	73 (26.7)	1.00
2007	242 (25.3)	1.12 (0.87–1.45)	135 (31.0)	1.22 (0.85–1.75)
2012	366 (35.6)	1.87 (1.46–2.38)^***	168 (39.1)	1.66 (1.16–2.38)^**
By Birth Multiplicity
Singleton Birth
2002	347 (16.0)	1.00	234 (19.6)	1.00
2007	718 (18.2)	1.15 (0.99–1.33)	476 (21.3)	1.08 (0.90–1.29)
2012	1171 (28.3)	2.00 (1.74–2.29)^***	667 (31.8)	1.76 (1.47–2.09)^***
Multiple Birth
2002	28 (50.9)	1.00	20 (80.0)	1.00
2007	49 (60.5)	1.85 (0.78–4.35)	23 (56.1)	0.32 (0.05–2.09)
2012	72 (72.0)	3.05 (1.27–7.33)^*	20 (50.0)	0.08 (0.01–0.78)^*

Abbreviations: aOR, adjusted odds ratio (for all covariates under analysis); CI, confidence interval.
P value for the trend was obtained by entering the survey year as a continuous variable.
↵^*P< .05; ^** P< .01; ^*** P< .001.