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Table 5 Gender and age-specific relative risk associated with 10 μg/m3 increase in air pollution concentration

From: Ambient air pollution and respiratory mortality in Xi’an, China: a time-series analysis

Category PM2.5 O3 SO2
Male 1.325 (0.990, 1.834)* 1.826 (0.435, 15.130) 1.555 (0.832, 3.868)*
Female 1.318 (0.894, 2.048)* 1.965 (0.336, 27.392) 1.365 (0.599, 5.636)
≤ 64 years 1.341 (0.802, 2.537)* 1.574 (0.143, 25.052) 1.495 (0.526, 7.938)
≥ 65 years 1.310 (0.890, 2.033) 1.424 (0.345, 24.444) 1.601 (0.694, 5.297)
  1. *P < 0.05