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Table 6 Associations between type of fuel and risk of SGA

From: Exposure to cooking fuels and birth weight in Lanzhou, China: a birth cohort study

Fuel type

AGA

SGA

ORa(95 % CI)

Gas

6232

509

1.00

Coal

264

55

1.27(0.90–1.80)

Biomass

88

22

1.22(0.70–2.08)

Electromagnetic

377

56

1.27(0.93–1.74)

  1. aAdjusted for maternal age, education, family income, maternal weight gain, vitamin supplement during pregnancy, preeclampsia, caesarean section, parity, smoking, and ventilation