Table 3

Parkinsonism prevalence ratios (PRs, ever or never) by exposure related to pesticides

ExposureCases (n (%))PR (95% CI) for parkinsonism
ExposedNon-exposedUnadjustedAdjusted3-150
Use of well water32  (19.2)18  (19.1)1.0 (0.6 to 1.7)0.9 (0.6 to 1.5)
Farm employment57 (21.3)8 (19.5)1.1 (0.6 to 2.1)1.0 (0.5 to 1.8)
Any pesticides48 (20.2)17 (23.6)0.8 (0.5 to 1.4)0.8 (0.5 to 1.2)
 Any insecticides51 (21.3)14 (19.4)1.1 (0.6 to 1.8)0.9 (0.6 to 1.5)
 Any herbicides39 (20.2)26 (22.0)0.9 (0.6 to 1.4)0.9 (0.6 to 1.3)
 Any fungicides35 (19.0)28 (22.8)0.8 (0.5 to 1.3)0.8 (0.6 to 1.3)
Any carbamates31 (19.1)34 (23.6)0.8 (0.5 to 1.2)0.8 (0.6 to 1.3)
Any organophosphates48 (21.0)17 (21.0)1.0 (0.6 to 1.6)0.9 (0.6 to 1.4)
Any organochlorines45 (20.4)20 (23.0)0.9 (0.6 to 1.4)0.8 (0.5 to 1.3)
Any dithiocarbamates19 (17.3)44 (22.4)0.8 (0.5 to 1.2)0.8 (0.5 to 1.3)
Any pesticide containing manganese4 (7.8)58 (23.3) 0.3 (0.1 to 0.9) 0.4 (0.2 to 1.1)
Azinphos methyl24 (17.5)24 (21.1)0.8 (0.5 to 1.4)0.8 (0.5 to 1.3)
DDT40 (20.6)25 (21.9)0.9 (0.6 to 1.5)0.8 (0.5 to 1.2)
Diazinon41 (20.5)24 (22.2)0.9 (0.6 to 1.4)0.8 (0.5 to 1.3)
Ferbam2 (16.7)59 (20.8)0.8 (0.2 to 2.9)0.9 (0.3 to 3.0)
Lead arsenate24 (24.5)28 (18.4)1.3 (0.8 to 2.1)1.0 (0.6 to 1.6)
Mancozeb3 (6.8)58 (22.8) 0.3 (0.1 to 0.9) 0.4 (0.1 to 1.2)
Maneb1 (8.3)61 (21.4)0.4 (0.1 to 2.6)0.4 (0.1 to 2.6)
Methyl parathion28 (18.1)36 (24.0)0.7 (0.5 to 1.2)0.7 (0.5 to 1.1)
Paraquat20 (17.5)29 (21.0)0.8 (0.5 to 1.4)0.8 (0.5 to 1.3)
TEPP12 (18.8)35 (20.1)0.9 (0.5 to 1.7)0.8 (0.5 to 1.5)
Thiram2 (16.7)60 (20.9)0.8 (0.2 to 2.9)0.8 (0.2 to 2.8)
Zineb1 (20.0)61 (20.7)1.0 (0.2 to 5.6)1.2 (0.2 to 6.0)
Ziram19 (18.8)43 (21.3)0.9 (0.5 to 1.4)0.9 (0.6 to 1.5)
  • 3-150 Adjusted for age and pack-years of smoking.