Birthweight findings from the HAPIN LPG stove and fuel trial intention-to-treat analyses found an adjusted mean difference of 19.5 g (95% confidence interval, −10.1 to 49.2). Secondary analyses indicate a stronger effect amongst those who received the intervention earlier in pregnancy. Published in the New England Journal of Medicine.

Much of the global population spends most of their time indoors; however, air pollution measurement, a proxy of exposure, occurs primarily outdoors. We describe, compare, and suggest potential areas of dialogue between the two disparate but linked fields commonly referred to as indoor air pollution and household air pollution, both of which lead to substantial exposures to air pollutants damaging to human health.

Exposure reductions due to the HAPIN LPG fuel and stove intervention were large and sustained. Median postrandomization exposures of PM2.5 in the intervention arm were lower by 66% at the first (71.5 vs. 24), and second follow-up visits (69.5 vs. 23.7) compared to controls. Published in Environmental Health Perspectives.