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Table 3 PM1 and male incidence rate: Humidity modification effect

From: Climatic modification effects on the association between PM1 and lung cancer incidence in China

  Binary division Three-category division
Mean male incidence rate = 50.16 Mean male incidence rate = 50.16
β 95% CI β 95% CI
PM1 4.78% ** (0.20%, 9.57%) 4.59% ** (−0.20%, 9.37%)
Longitude 0.35 *** (0.09, 0.62) 0.34 ** (0.06, 0.62)
Latitude 1.55 *** (0.77, 2.32) 1.52 *** (0.72, 2.32)
Year 2015 0.96 (−2.87, 4.78) 1.00 (− 2.85, 4.85)
Air temperature 1.79 *** (0.95, 2.63) 1.88 *** (1.02, 2.73)
Finance 0.04 (−0.03, 0.11) 0.04 (− 0.03, 0.10)
Education −2.22 ** (−4.39, −0.04) −2.05 ** (−4.24, 0.15)
Employment −0.26 ** (−0.50, − 0.02) − 0.30 ** (− 0.54, − 0.06)
Construction 0.01 (−0.05, 0.08) 0.01 (−0.06, 0.08)
Manufacturing −0.04 *** (−0.07, − 0.02) − 0.03 ** (− 0.06, − 0.01)
Population 0.01 (−0.04, 0.05) −0.01 (−0.06, 0.04)
Urban-rural division 3.65 * (−0.50, 7.81) 2.65 (−1.50, 6.81)
PM1 × Humidity2 3.39% *** (1.59%, 5.18%) 2.19% ** (0.40%, 3.39%)
PM1 × Humidity3    3.59% *** (1.00%, 5.98%)
  1. * for p < 0.1, ** for p < 0.05 and *** for p < 0.01. If PM1 changes by 10 μg/m3, the change in incidence rate relative to its mean = (10 × coefficient for PM1 or its interaction terms)/mean incidence rate