Table 6.

Sensitivity analysis using log binomial regression for preterm and malaria

Preterm	Crude RR (CI)	P value	Adjusted RR (CI)*	P value
Malaria
No	1		1
Yes	1.49 (1.24 to 1.23)	<0.001	1.45 (1.20 to 1.78)	<0.001
Parity
First pregnancy	1		1
2–3 pregnancies	0.89 (0.78 to 1.04)	0.150	0.87 (0.74 to 1.02)	0.087
4 or more pregnancies	0.72 (0.57 to 0.91)	0.006	0.74 (0.57 to 0.96)	0.025
Maternal age (years)
15–24	1
25–34	1.14 (0.98 to 1.35)	0.106	1.19 (1.01 to 1.42)	0.039
35–48	0.81 (0.61 to 1.09)	0.181	0.93 (0.67 to 1.29)	0.670
G6PD
Normal	1		1
Partial defect	1.29 (1.03 to 1.60)	0.025	1.27 (1.02 to 1.59)	0.036
Full defect	1.04 (0.74 to 1.48)	0.803	0.98 (0.67 to 1.44)	0.935
Neonatal admission at birth
No	1		1
Yes	1.47 (1.13 to 1.91)	0.004	1.39 (1.07 to 1.83)	0.015

*Significant confounders adjusted in the multiple log binomial model: parity, maternal age, G6PD and neonatal admissions at birth.

†RR, Relative Risk

G6PD, glucose-6-phosphate dehydrogenase.