000030270 001__ 30270
000030270 041__ $$aEnglish
000030270 100__ $$aNeupane, M.
000030270 245__ $$aSustained Use of Biogas Fuel and Blood Pressure among Women in Rural Nepal
000030270 260__ $$c2015
000030270 300__ $$a343-351
000030270 520__ $$aAbstractBackground More than two fifths of the world's population cook with solid fuels and are exposed to household air pollution (HAP). As of now, no studies have assessed whether switching to alternative fuels like biogas could impact cardiovascular health among cooks previously exposed to solid fuel use. Methods We conducted a propensity score matched cross-sectional study to explore if the sustained use of biogas fuel for at least ten years impacts blood pressure among adult female cooks of rural Nepal. We recruited one primary cook ≥30 years of age from each biogas (219 cooks) and firewood (300 cooks) using household and measured their systolic (SBP) and diastolic blood pressure (DBP). Household characteristics, kitchen ventilation and 24-h kitchen carbon monoxide were assessed. We matched cooks by age, body mass index and socio-economic status score using propensity scores and investigated the effect of biogas use through multivariate regression models in two age groups, 30–50 years and >50 years to account for any post-menopausal changes. Results We found substantially reduced 24-h kitchen carbon monoxide levels among biogas-using households. After matching and adjustment for smoking, kitchen characteristics, ventilation status and additional fuel use, the use of biogas was associated with 9.8 mmHg lower SBP [95% confidence interval (CI), −20.4 to 0.8] and 6.5 mmHg lower DBP (95% CI, −12.2 to −0.8) compared to firewood users among women >50 years of age. In this age group, biogas use was also associated with 68% reduced odds [Odds ratio 0.32 (95% CI, 0.14 to 0.71)] of developing hypertension. These effects, however, were not identified in younger women aged 30–50 years. Conclusions Sustained use of biogas for cooking may protect against cardiovascular disease by lowering the risk of high blood pressure, especially DBP, among older female cooks. These findings need to be confirmed in longitudinal or experimental studies.
000030270 653__ $$aBiogas
000030270 653__ $$aBlood Pressure
000030270 653__ $$aCardiovascular Disease
000030270 653__ $$aHousehold Air Pollution
000030270 653__ $$aNepal
000030270 700__ $$aBasnyat, B.
000030270 700__ $$aFischer, R.
000030270 700__ $$aFroeschl, G.
000030270 700__ $$aWolbers, M.
000030270 700__ $$aRehfuess, E. A.
000030270 773__ $$pEnvironmental Research
000030270 773__ $$v136 (0)
000030270 773__ $$ahttp://dx.doi.org/10.1016/j.envres.2014.10.031
000030270 8564_ $$uhttp://www.sciencedirect.com/science/article/pii/S0013935114003958$$yExternal link (Open Access)
000030270 980__ $$aARTICLE