Table 3.

Odds ratios of bladder cancer for coffee, tea and soft drinks consumption

Coffee
	Category	Cases/Controls	OR	95 % CI
Drinking status	Never drinkers	135/332	1.0
	Former drinkers	9/13	1.4	0.6–3.6
	Current drinkers	111/156	1.7	1.2–2.3
	Ever drinkers	120/169	1.6	1.2–2.3
Amount (pure coffee)	Never drinkers	135/332	1.0
(cups/week)	1–6	22/28	1.6	0.8–3.1
	7+	15/21	2.0	0.9–4.4
	p-value for trend		0.03
Amount (coffee with milk)	Never drinkers	135/332	1.0
(cups/week)	1–6	70/112	1.5	1.0–2.2
	7+	24/24	1.9	1.0–3.7
	p-value for trend		0.01
Amount (total coffee)	Never drinkers	135/332	1.0
(cups/week)	1–6	84/133	1.5	1.1–2.2
	7+	36/36	2.1	1.2–3.6
	p-value for trend		<0.01
Tea
	Category	Cases/Controls	OR	95 % CI
Drinking status	Never drinkers	180/419	1.0
	Former drinkers	1/2	1.5	0.1–19
	Current drinkers	74/80	2.3	1.6–3.4
	Ever drinkers	75/82	2.3	1.5–3.4
Amount (pure tea)	Never drinkers	180/419	1.0
(cups/week)	1–6	21/11	4.4	2.0–10
	7+	20/32	1.5	0.8–2.8
	p-value for trend		0.02
Amount (tea with milk)	Never drinkers	180/419	1.0
(cups/week)	1–6	28/40	1.7	1.0–3.0
	7+	10/5	6.5	2.0–21
	p-value for trend		<0.01
Amount (total tea)	Never drinkers	180/419	1.0
(cups/week)	1–6	59/72	2.1	1.4–3.1
	7+	16/10	4.1	1.7–9.9
	p-value for trend		<0.01
Soft drinks
	Category	Cases/Controls	OR	95 % CI
Amount	Never drinkers	138/289	1.0
(bottles/years)	1–104	65/121	1.1	0.7–1.6
	105+	52/91	1.1	0.7–1.7
	p-value for trend		0.62

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, smoking status, years since quitting, number of cigarettes smoked per day, maté drinking, soft drink intake, milk intake, and, when appropriate, coffee drinking and tea drinking

CI, confidence interval.