Smoking and drinking in relation to oral potentially malignant disorders in Puerto Rico: a case-control study

BMC Cancer

Table 3 Odds ratios for drinking associated with OPMDs relative to oral benign tissue conditions

Exposure	OPMDs (n)	Benign (n)	OR^a	95% CI	OR_adj ^b	95% CI
Never drinkers	41	73	1.0	-	1.0	---
Ever drinkers	45	82	0.98	0.58-1.66	0.63	0.33-1.21
Never drinkers	41	73	1.0	-	1.0	---
Ex-drinkers	14	22	1.13	0.52-2.45	0.63	0.25-1.57
Current drinkers	31	60	0.92	0.52-1.64	0.63	0.32-1.26
P _trend			0.79	0.20
Drinks/week, all alcohol combined ^c
0	41	73	1.0	-	1.0	---
> 0-< 7	22	44	0.89	0.47-1.69	0.66	0.32-1.37
7-20	10	22	0.81	0.35-1.87	0.39	0.14-1.13
> 20	12	13	1.64	0.69-3.93	0.78	0.27-2.26
P _trend			0.55	0.32
Mean drinks/wk (all types combined)
> 0	18.8 (29.9^d)	16.2 (33.8)	P = 0.68 ^e
> 20	55.1 (38.0)	70.3 (58.9)	P = 0.46 ^e
Type of alcoholic beverages ^c
Beer, drinks/wk
< 7	72	133	1.0	-	1.0	---
7+	14	22	1.18	0.57-2.44	0.66	0.27-1.61
Mean 12 oz beers/wk
	9.4 (16.8)	8.1 (17.0)	P = 0.66 ^e
Wine, drinks/wk
< 7	83	152	1.0	-	1.0	---
7+	3	3	1.83	0.36-9.28	1.74	0.30-10.11
Mean drinks of wine/wk
	1.1 (2.6)	0.8(1.7)	P = 0.44 ^e
Hard Liquor, drinks/wk
< 7	76	140	1.0	-	1.0	---
7+	10	15	1.23	0.53-2.87	0.62	0.23-1.65
Mean drinks of hard liquor/wk
	8.3(22.4)	7.4(23.3)	P = 0.84 ^e

^a Crude OR
^b OR adjusted for age (four levels), gender, education (three levels), fruit & vegetable intake (four levels), and current smoking
^c One OPMD and three benign condition subjects did not report level of drinking
^d Standard deviation
^e Based on t-test

ISSN: 1471-2407