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Table 2 Associations of childhood and adulthood direct pesticide application with PD in negative history families.

From: Pesticide exposure and risk of Parkinson's disease: A family-based case-control study

  % Exposed*    
  Cases, n = 228 Controls, n = 215 p for trend (GEE model 1)** OR and 95% CI (GEE model 2)**
History of pesticide use     
   Ever 62.7 47.4   1.80 1.20–2.70
   Never 37.3 52.6   1.00 Referent
Frequency (days/year)   <0.001   
   >10 24.1 11.2   2.55 1.38–4.73
   4–10 15.8 13.0   1.58 0.84–2.99
   <4 19.7 18.6   1.52 0.89–2.62
   Never 37.3 52.6   1.00 Referent
Duration (years)   0.012   
   >25 21.9 13.5   1.98 1.14–3.46
   10–25 18.4 18.6   1.32 0.76–2.28
   <10 17.5 11.6   2.04 1.08–3.88
   Never 37.3 52.6   1.00 Referent
Cumulative exposure (days)   <0.001   
   >179 21.9 10.7   3.25 1.84–5.73
   42–179 18.0 15.3   1.46 0.80–2.68
   <42 15.4 14.0   1.48 0.83–2.66
   Never 37.3 52.6   1.00 Referent
  1. *Column totals may not sum to 100 due to rounding or missing data.
  2. **GEE model adjusted for AAE, sex, cigarette smoking, and caffeine consumption.