Fig. 2: Effect of changing residential fuel type on lung function.
From: Impact of residential solid fuel usage and fuel conversion on children’s lung function
FVC (mL) : forced vital capacity; FEV1 (mL) : forced expiratory volume in 1 s; PEF (mL/s) peak expiratory flow, FEF25 (mL/s) forced expiratory flow at 25%, FEF75 (mL/s) forced expiratory flow at 75%. Points represent the estimated change of pulmonary function parameters. Vertical lines represent the 95% confidence interval (CI). The sample size used to estimate these changes consisted of 9997 schoolchildren across 24371 visits in China. Source data are provided as a Source Data file.
