Table 5.

General linear model for neonatal birth weight (g).

Variable in Model	Coefficient	95% CI	t	p-Value
Constant	−2011	−4349–327	−1.71	0.091
Continuous variables
Pre-pregnancy BMI	23.7	3.0–44.4	2.27	0.025 *
Gestational age	102.1	46.7–157.5	3.65	<0.001 *
Fat intake	−2.83	−8.21–2.54	−1.05	0.298
Categorical variables
Income (<9000 LKR)—reference level
Income (9000–13,999 LKR)	−209	−679–262	−0.88	0.381
Income (14,000–19,999 LKR)	−43	−495–410	−0.19	0.852
Income (20,000–31,999 LKR)	−74	−523–374	−0.33	0.743
Income (≥32,000 LKR)	156	−322–634	0.65	0.518
Area of residence (urban)—reference level
Area of residence (sub-urban)	36	−235–308	0.27	0.791
Area of residence (rural)	258	−14–529	1.88	0.062
History of LBW deliveries (yes)—reference level
History of LBW deliveries (no)	209	−6.0–424.0	1.93	0.057
Parity (primiparous)—reference level
Parity (multiparous)	187.4	3.2–371.6	2.02	0.046 *
Category of carbohydrate intake (229–429 g/day)—reference level
Category of carbohydrate intake (430–629 g/day)	312	91–534	2.8	0.006 *
Category of carbohydrate intake (630–829 g/day)	237	−44–517	1.67	0.097
Category of protein intake (<RDA)—reference level
Category of protein intake (≥RDA)	−66	−326–194	−0.51	0.615

R² (adjusted) = 13.3%. n = 118. * p < 0.05.