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Table 4 Odds ratios of bladder cancer for drinking of maté, coffee, tea, by smoking status

From: Non-alcoholic beverages and risk of bladder cancer in Uruguay

Category Never smokers Ever smokers
Maté drinking (liters/day × years)
Category Cases/Controls OR 95% CI Cases/Controls OR 95% CI
Never drinkers 10/30 1.0   8/41 1.0  
1–47 12/48 0.95 0.32–2.86 54/108 2.51 1.06–5.95
48–69 16/38 1.35 0.46–3.95 61/109 2.97 1.25–7.03
70+ 10/20 2.31 0.65–8.23 84/107 4.30 1.82–10.1
p-value for trend    0.2    <0.01
Coffee drinking (total coffee, cups/week)
Category Cases/Controls OR 95% CI Cases/Controls OR 95% CI
Never drinkers 26/91 1.0   109/241 1.0  
1–6 17/36 2.22 0.97–5.12 67/97 1.33 0.88–2.00
7+ 5/9 2.02 0.54–7.54 31/27 2.04 1.12–3.72
p-value for trend    0.08    0.01
Tea drinking (total tea, cups/week)
Category Cases/Controls OR 95% CI Cases/Controls OR 95% CI
Never drinkers 34/111 1.0   146/308 1.0  
1–6 11/20 2.22 0.84–5.83 48/52 1.91 1.20–3.04
7+ 3/5 1.52 0.27–8.59 13/5 5.90 1.97–17.6
p-value for trend    0.2    <0.01
  1. OR, odds ratio adjusted for age, sex, residence, urban/rural status, education, family history of bladder cancer among first-degree relatives, body mass index, occupation, soft drink intake, and milk intake, and, when appropriate, maté drinking, coffee drinking, and tea drinking
  2. CI, confidence interval.