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Table 4 PM1 and female 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 female incidence rate = 22.37 Mean female incidence rate = 22.37
β 95% CI β 95% CI
PM1 0.18% (−4.92%, 5.36%) −0.45% (−5.36%, 4.92%)
Longitude 0.24 *** (0.11, 0.37) 0.25 *** (0.12, 0.39)
Latitude 1.22 *** (0.84, 1.60) 1.32 *** (0.93, 1.70)
Year 2015 −1.49 (−3.35, 0.37) −1.62 ** (−3.46, 0.23)
Air temperature 0.87 *** (0.46, 1.28) 0.94 *** (0.53, 1.35)
Finance 0.06 *** (0.03, 0.09) 0.06 *** (0.02, 0.09)
Education −1.54 *** (−2.42, −0.67) −1.60 *** (−2.47, −0.73)
Employment −0.05 (−0.17, 0.07) −0.05 (−0.17, 0.06)
Construction −0.05 *** (−0.08, − 0.02) − 0.05 *** (− 0.08, − 0.02)
Manufacturing −0.02 *** (−0.03, 0.00) −0.01 ** (−0.03, 0.00)
Population −0.02 ** (−0.04, 0.00) −0.02 (−0.04, 0.00)
Urban-rural division 2.89 *** (0.85, 4.93) 2.96 *** (0.95, 4.97)
PM1 × Humidity2 1.34% (−0.45%, 3.58%) 0.00% (−1.79%, 1.79%)
PM1 × Humidity3    4.02% *** (1.34%, 6.71%)
  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