Table 4. Height, weight and body mass index in never and ever alcohol drinking: odds ratios (OR) and confidence intervals (95% CI) for oral cavity and oropharyngeal cancer, Spain 1996–1999.

	Nondrinkers			Ever-drinkers
	Ca/Coa	ORb	95% CI	Ca/Coa	ORc	95% CI
Height (cm)
⩾170	2/14	1.0d		99/110	1.0d
169–163	5/16	1.70	0.16–18.25	108/100	1.22	0.78–1.89
⩽162	16/28	2.50	0.18–34.54	107/69	1.43	0.88–2.33
P-value for trend		0.449			0.100
At diagnosis
Weight (kg)
⩾76	6/25	1.0d		69/122	1.0d
66–75	5/17	2.70	0.49–14.84	82/106	1.18	0.75–1.87
⩽65	15/19	3.74	0.92–15.19	164/56	3.54	2.21–5.66
P-value for trend		0.047			<0.001
Body mass index (kg m−2)
⩾26	10/33	1.0d		103/171	1.0d
23–25	6/16	2.11	0.51–8.77	98/72	1.82	1.17–2.81
⩽22	6/8	2.06	0.42–10.22	106/32	3.64	2.18–6.05
P-value for trend		0.495			<0.001
2 years before
Weight (kg)
⩾76	6/26	1.0d		74/123	1.0d
75–66	8/19	2.97	0.61–14.49	100/107	1.22	0.78–1.92
⩽65	14//20	3.32	0.81–13.64	145/59	2.90	1.82–4.61
P-value for trend		0.098			<0.001
Body mass index (kg m−2)
⩾26	13/37	1.0d		116/170	1.0d
25–23	6/12	4.06	0.89–18.49	100/76	1.59	1.04–2.43
⩽22	4/7	1.26	0.23–6.87	92/29	3.39	2.00–5.73
P-value for trend		0.419			<0.001
In young adulthood
Weight (kg)
⩾69	5/24	1.0d		93/111	1.0d
68–61	6/11	4.53	0.69–29.69	84/80	1.15	0.72–1.83
⩽60	19/30	3.89	0.80–18.77	136/95	1.45	0.93–2.27
P-value for trend		0.238			0.102
Body mass index (kg m−2)
⩾25	8/22	1.0d		92/96	1.0d
24–23	5/15	1.98	0.38–10.39	80/79	0.90	0.56–1.46
⩽22	9/18	1.37	0.36–5.27	131/95	1.33	0.85–2.09
P-value for trend		0.920			0.237

^aSome strata do not add up to the total because of a few missing values.

^bEstimates from unconditional regression equations including terms for age, gender, centre, education, smoking habits, fruits and vegetables intake in nondrinkers.

^cEstimates from unconditional regression equations including terms for age, gender, centre, education, smoking and drinking habits, fruits and vegetables intakes in ever-drinkers.

^dReference category.