Table:
Variable	Crude odds ratio (95% CI)	Adjusted odds ratio (95% CI)
Newborn sex
Male	1.00	1.00
Female	1.15 (0.85-1.54)	1.15 (0.86-1.53)
Mother’s level of education
≤7 y	1.00	1.00
≥8 y	1.40 (1.05-1.87)	1.31 (0.97-1.77)
Age group (y)
20–39	1.00	1.00
≤19 and ≥40	1.29 (0.95-1.75)	1.24 (0.91-1.67)
Type of delivery
Normal	1.00	1.00
Cesarean section	1.13 (0.84-1.51)	1.01 (0.65-1.15)
Number of prenatal visits
4+	1.00	1.00
1–3	1.79 (1.17-2.73)	1.67 (1.10-2.53)

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| Variable | Crude odds ratio (95% CI) | Adjusted odds ratio (95% CI) | 
 | --- | --- | --- | 
 | Newborn sex |  |  | 
 | Male | 1.00 | 1.00 | 
 | Female | 1.15 (0.85-1.54) | 1.15 (0.86-1.53) | 
 | Mother’s level of education |  |  | 
 | ≤7 y | 1.00 | 1.00 | 
 | ≥8 y | 1.40 (1.05-1.87) | 1.31 (0.97-1.77) | 
 | Age group (y) |  |  | 
 | 20–39 | 1.00 | 1.00 | 
 | ≤19 and ≥40 | 1.29 (0.95-1.75) | 1.24 (0.91-1.67) | 
 | Type of delivery |  |  | 
 | Normal | 1.00 | 1.00 | 
 | Cesarean section | 1.13 (0.84-1.51) | 1.01 (0.65-1.15) | 
 | Number of prenatal visits |  |  | 
 | 4+ | 1.00 | 1.00 | 
 | 1–3 | 1.79 (1.17-2.73) | 1.67 (1.10-2.53) |