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Table 3 The effects of THMs (Total 551) and covariates on risk of rectal cancer

From: Case control study of the geographic variability of exposure to disinfectant byproducts and risk for rectal cancer

Variable

OR

95% Confidence Interval

p

Alcohol (1000 oz./month)

1.64

(1.09 – 2.47)

0.018

Betacarotene (10,000 IU/month)

0.58

(0.43 – 0.78)

<0.001

Total Calories (10,000/month)

1.18

(1.02–1.36)

0.022

Tap water (liters)

1.05

(0.67–1.84)

0.831

Total 551 estimate (ug/l)

1.01

(0.98–1.03)

0.518

Total 551 consumption (ug/day)

1.01

(0.99–1.03)

0.330