183 / 2023-05-14 17:55:41

Impact of indoor air pollution with sarcopenia and its components in rural adults: the Henan rural cohort study

sarcopenia,indoor air pollution,solid fuel use,rural population

Aims: To testify the association of indoor air pollution (IAP) with sarcopenia and its components in rural adults.

Methods: A total of 9058 and 5511 participants from the Henan rural cohort study were enrolled in the cross-sectional and longitudinal analysis, respectively. IAP was evaluated by fuel type and ventilation status for cooking. Sarcopenia was defined by low muscle strength and low muscle mass. Binary logistic regression models were used to examine the individual and combined association of cooking fuel type and kitchen ventilation status with sarcopenia and its components.

Results: The prevalence of sarcopenia was 2.26%, and the yearly incidence was 0.84% in rural adults. In the cross-sectional analysis, IAP was associated with a higher risk of sarcopenia and its components. In the longitudinal analysis, the odds (95% confidential interval (CI)) of participants using solid fuel or natural ventilation for cooking was 1.419 (1.014, 1.984) and 1.556 (1.031, 2.346), compared with those using clean fuel or mechanical ventilation. Individuals using solid fuel plus natural ventilation were in a highest risk of sarcopenia. And the association of IAP with low muscle mass and low muscle strength were similar to the association between IAP and sarcopenia. Besides, individuals with inadequate vegetables and fruits intake were more vulnerable to have sarcopenia related to IAP.

Conclusion: The findings shows IAP was associated with sarcopenia and its components in rural regions, and promoting clean fuel and mechanical ventilation for cooking will provide health benefits to rural residents.