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Table 5 Associations of well-water consumption at childhood and adulthood residences with PD.

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

  % Exposed*    
  Cases, n = 319 Controls, n = 296 p for trend (GEE model 1)** OR and 95% CI (GEE model 2)**
History of well water use     
   Ever 61.8 59.1   1.08 0.77–1.50
   Never 37.6 39.9   1.00 Referent
Duration (years)   0.52   
   >22 23.5 20.3   1.17 0.74–1.86
   10.5–22 20.1 19.3   1.10 0.71–1.71
   <10.5 18.2 18.9   1.02 0.64–1.61
   Never 37.6 39.9   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.