Skip to main content

Table 4 Adjusteda OR (95 % CI) for ASD associated with exposure during pregnancy to NATA air toxics (fourth vs first quartile)

From: Air toxics and the risk of autism spectrum disorder: the results of a population based case–control study in southwestern Pennsylvania

Pollutant Interviewed (217 Cases and 224 Controls) Birth Certificate (215 Cases and 4,856 Controls)
All Births Singleton Births All Births Singleton Births
Arsenic 1.28 (0.71–2.28) 1.38 (0.75–2.52) 1.33 (0.87–2.02) 1.62 (1.03–2.54)**
Chromium 1.52 (0.87–2.66) 1.58 (0.88–2.81) 1.60 (1.08–2.38)** 1.65 (1.09–2.50)**
Methylene chloride 1.07 (0.61–1.85) 1.33 (0.74–2.36) 1.41 (0.96–2.07)* 1.63 (1.08–2.45)**
PAHs 1.33 (0.76–2.32) 1.56 (0.87–2.77) 1.44 (0.98–2.11)* 1.64 (1.09–2.46)**
Styrene 2.04 (1.17–3.58)** 2.23 (1.24–4.00)** 1.61 (1.08–2.40)** 1.67 (1.09–2.54)**
Lead 1.10 (0.63–1.94) 1.21 (0.67–2.18) 1.33 (0.90–1.97) 1.52 (1.00–2.30)**
Cyanide 1.19 (0.67–2.12) 1.32 (0.73–2.36) 1.36 (0.92–2.01) 1.52 (1.01–2.30)**
  1. aModels adjusted for maternal smoking, age, education, race, child’s birth year, and sex of the child
  2. **Significant (p-value < 0.05) *p < .10