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Table 5 Comparison of prevalence rates of tests variables by the distance classes in males and females.

From: Geographical information system and environmental epidemiology: a cross-sectional spatial analysis of the effects of traffic-related air pollution on population respiratory health

  Males Females
  Distance of residence to main road Distance of residence to main road
  <100 m 100-250 m 250-800 m <100 m 100-250 m 250-800 m
  % % % % % %
Ige_log > 75th 34.0 (n = 191) 34.0 (n = 206) 29.6 (n = 291) 19.5 (n = 205) 16.3 (n = 208) 18.8 (n = 308)
Slope_ln > 75th 25.2 (n = 131) 22.4 (n = 152) 19.7 (n = 208) 27.3 (n = 88) 27.6 (n = 116) 30.5 (n = 164)
Skin test_5 mm pos. 18.7 (n = 209) 18.5 (n = 232) 17.5 (n = 331) 18.6 * (n = 226) 11.7 (n = 247) 11.8 (n = 363)
Skin test_3 mm pos. 34.9 (n = 209) 37.9 (n = 232) 34.4 (n = 331) 33.2 (n = 226) 28.7 (n = 247) 29.5 (n = 363)
FEV1/FVC% <70% 16.8 * (n = 191) 17.5 (n = 217) 9.6 (n = 303) 7.1 (n = 183) 5.6 (n = 214) 6.8 (n = 294)
FEV1/VC% <70% 14.7 (n = 191) 18.0 (n = 217) 12.9 (n = 303) 7.1 (n = 183) 3.7 (n = 214) 8.2 (n = 294)
  1. *** p < 0.001, ** p < 0.01, * p < 0.05, # 0.05 < p < 0.1 (borderline); comparison between subjects living at different distances from the main road, separately in males and in females