Table 2. Height, weight and body mass index: odds ratios (OR) and confidence intervals (95% CI) for oral cavity and oropharyngeal cancer, Spain 1996–1999.

	Casesa	Controlsa	ORb	95% CI
Height (cm)
⩾170	101	124	1.0c
169–163	113	116	1.19	0.78–1.82
⩽162	123	97	1.39	0.88–2.19
P-value for trend			0.103
At diagnosis
Weight (kg)
⩾76	75	147	1.0c
75–66	87	123	1.20	0.78–1.86
⩽65	179	75	3.57	2.32–5.51
P-value for trend			<0.001
Body mass index (kg m−2)
⩾26	113	204	1.0c
25–23	104	88	1.84	1.22–2.76
⩽22	112	40	3.64	2.27–5.82
P-value for trend			<0.001
2 years before
Weight (kg)
⩾76	80	149	1.0c
75–66	108	126	1.32	0.87–2.00
⩽65	159	79	2.96	1.93–4.53
P-value for trend			<0.001
Body mass index (kg m−2)
⩾26	129	207	1.0c
25–23	106	88	1.65	1.11–2.47
⩽22	96	36	3.31	2.04–5.39
P-value for trend			<0.001
In young adulthood
Weight (kg)
⩾69	98	135	1.0c
68–61	90	91	1.27	0.82–1.97
⩽60	155	125	1.49	0.99–2.26
P-value for trend			0.065
Body mass index (kg m−2)
⩾25	100	118	1.0c
24–23	85	94	0.98	0.63–1.53
⩽22	140	113	1.32	0.87–2.00
P-value for trend			0.211

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

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

^cReference category.