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Table 4 Odds ratio (95% CI) of not passing DPOAE test for exposure to indoor air pollution during the whole pregnancy period (n = 1190)

From: Effects of ambient air pollution, fresh fruit and vegetable intakes as well as maternal psychosocial stress on the outcome of newborn otoacoustic emission hearing screening

  Unadjusted Model 1 Model 2 Model 3
Maternal active smoking 0.558(0.072,4.352) 0.482(0.061,3.823) 0.521(0.065,4.154) 0.463(0.055,3.906)
Passive smoking 1.044(0.721,1.511) 1.045(0.710,1.536) 0.932(0.623,1.393) 0.788(0.516,1.201)
House renovation 0.652(0.196,2.170) 0.715(0.210,2.439) 0.697(0.202,2.403) 0.696(0.198,2.449)
Kitchen fuel
 Fuel gas REF REF REF REF
 Coal 1.128(0.644,1.975) 1.162(0.652,2.071) 0.920(0.441,1.920) 0.777(0.346,1.742)
 Electric 1.335(0.448,3.982) 1.262(0.414,3.845) 1.244(0.406,3.809) 1.356(0.437,4.211)
 Others 3.171(0.784,12.823) 3.763(0.817,17.332) 2.801(0.596,13.153) 2.917(0.589,14.439)
  1. Model 1 adjusted parental age, maternal education level, premature, sex, birth weight during each time window
  2. Model 2 adjusted dietary habit, anxiety, depression, life event during each time window based on Model 1
  3. Model 3 adjusted PM10, PM2.5 during each time window based on Model 2
  4. *p ≤ 0.05
  5. **p ≤ 0.001