妊娠9至20周以下的女性被随机分配使用免费液化石油气炉灶， 1171 (76.2%) of the 1536 infants born to women in the intervention group and 1186 (77.8%) of the 1525 infants born to women in the control group had a valid length measurement at 12 months of age. Stunting occurred in 321 of the 1171 infants included in the analysis (27.4%) of the infants born to women in the intervention group and in 299 of the 1186 infants included in the analysis (25.2%) of those born to women in the control group (relative risk， Luke P. Naeher，imToken钱包下载， Michael Johnson， 0.94 to 1.29; P=0.12). CONCLUSIONS An intervention strategy starting in pregnancy and aimed at mitigating household air pollution by replacing biomass fuel with LPG for cooking did not reduce the risk of stunting in infants. DOI: 10.1056/NEJMoa2302687 Source: https://www.nejm.org/doi/full/10.1056/NEJMoa2302687 期刊信息
