Fig. 2
PAF for NAFLD risk factors in the UK Biobank. Abbreviations: NO2, nitrogen dioxide; NOx, nitrogen oxides; PM2.5, particulate matter with aerodynamic diameter ≤ 2.5 μm; PM10, particulate matter with aerodynamic diameter ≤ 10 μm; PM2.5−10, particulate matter with aerodynamic diameter in 2.5–10 μm; wAPS, weighted air pollution score; PAF, the population attributable fraction; CI, confidence interval. The above factors were calculated separately in the Cox Proportional Hazard model.Lifestyle model: adjusted for age, sex, ethnicity, BMI, education level, employment status, household income, Townsend deprivation index, 24-hour weighted average noise, greenspace percentage in 1000 m buffer, and proximity to major roads.Air pollution model: adjusted for age, sex, ethnicity, BMI, education level, employment status, household income, Townsend deprivation index, 24-hour weighted average noise, greenspace percentage in 1000 m buffer, and proximity to major roads