Fig. 2

Birth weight changes associated with per 3% increase in energy from major dietary protein sources during pregnancy. Multilevel linear regression models were used to estimate changes and 95% CIs. Models were adjusted for total energy intake, offspring sex, gestational age, socio-demographic characteristics (including geographic area, residence, childbearing age, education, occupation, household wealth index, and parity), health-related characteristics (including passive smoking, alcohol drinking, antenatal check visit frequency, folate/iron supplements use, anemia, and medication use), principal component score based on the nutrient intakes, and mutually adjusted for other major dietary protein sources. The black circles represent birth weight changes, and the vertical lines represent 95% CIs. *P = 0.008