Table 3.

Results of logistic and linear regression analysis with unadjusted and propensity score-adjusted live births, preterm births, and birth weights among Syrian and Turkish women with high-risk pregnancies (ref: Turkish Citizens)

Output*	Unadjusted			Adjusted with propensity score
	Exp(B)	(95% CI)	p value	Exp(B)	(95% CI)	p value
Model 1: Live birth
Syrian refugees	0.695	0.236/2.046	0.509	0.480	0.135/1.699	0.255
Model 2: Preterm birth
Syrian refugees	0.936	0.362/2.417	0.891	1.108	0.320/3.833	0.871
Model 3: Low birth weight (< 2500 g)
Syrian refugees	0.387	0.087/1.722	0.213	0.185	0.004/8.18	0.383

	Coefficient (B)	(95% CI)	p value	Coefficient (B)	(95% CI)	p value
Model 4: Birth weight
Syrian refugees	− 117.3	− 251.3/16.7	0.086	− 124.5	− 280.2/31.1	0.116

Linear regression analysis was applied in model 4 and a logistic regression analysis was applied in models 1, 2, and 3. Dependent Variables Live birth, preterm birth, low birth weight, birth weight; Independent variables Nationality, propensity score: age, parity, abortion, pregnancy spacing shorter than 2 years, previous C/S, concurrent chronic disease, and gestational week at first antenatal gynecologist appointment

CI confidence interval, g grams