Adjusted effect estimates (β and 95% CIs) for birth size outcomes in association with type of cooking biomass fuels
| Birth size z-score* | Untransformed birth size measures† | |||||
| Birth weight (N=1135) | Birth length (N=1132) | Head circumference (N=1134) | Birth weight (g) (N=1137) | Birth length (cm) (N=1137) | Head circumference (cm) (N=1136) | |
| β (95% CI) | β (95% CI) | β (95% CI) | β (95% CI) | β (95% CI) | β (95% CI) | |
| Crop residues | −0.11 (−0.24 to 0.02) p=0.09 | −0.13 (−0.25 to 0.01) p=0.03 | −0.14 (−0.27 to 0.02) p=0.03 | −41.49 (−89.45 to 6.48) p=0.09 | −0.26 (−0.57 to 0.04) p=0.09 | −0.17 (−0.32 to 0.01) p=0.03 |
| Fuelwood | Reference | Reference | Reference | Reference | Reference | Reference |
The n’s differ in z-score outcomes: missing in birthweight z-score (n=2) and head circumference z-score (n=2) due to 22 weeks of gestation (n=1) and 28 weeks of gestation (n=1), respectively, and missing in birth length z-score (n=5) due to 22 weeks of gestation (n=1), 28 weeks of gestation (n=1) and 29 weeks of gestation (n=3) with having the same value of birth length.
*Models adjusted for maternal age, maternal enrolment BMI, infant gender, income, SHS exposure, study site and time spent cooking per day.
†Models adjusted for maternal age, maternal enrolment BMI, infant gender, income, SHS exposure, study site, time spent cooking per day and gestational age.
BMI, body mass index; SHS, secondhand smoke.