Household cooking fuel use and its health effects among rural women in southern India-A cross-sectional study.

A positive trend was observed between cumulative exposure to biomass in hour-years and various self-reported health symptoms/conditions (p < 0.001).

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An increasing trend of using firewood was observed with increasing age in Malawi, which ranged from 33% among women of the age 17–24 years, approximately 45% among 46–55 years to 56.3% between 66–85 years (p< 0.001) [ 8 ].

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