Alcohol consumption and cigarette smoking were evaluated in relation to dev
elopment of benign prostatic hyperplasia (BPH) among 29,386 members of the
Health Professionals Follow-up Study. Men who were 40-75 years old in 1986
and free of prior BPH surgery, diagnosed cancer at baseline, and prostate c
ancer at baseline and during follow-up were followed for incidence of BPH s
urgery from 1986 to 1994, Cases were men who reported BPH surgery between 1
986 and 1994 (n = 1,813) or who scored greater than or equal to 15 points o
f 35 on seven lower urinary tract symptom questions modified from the Ameri
can Urological Association symptom index in 1992 and 1994 (n = 1,786); nonc
ases were men who scored less than or equal to 7 points (n = 20,840), After
controlling for age, race/ethnicity, body mass index, physical activity, a
nd mutually for alcohol intake and smoking, moderate alcohol consumption wa
s inversely related with total BPH (30.1-50 g/day vs. 0: odds ratio (OR) =
0.59, 95% confidence interval (CI) 0.51-0.70; p trend < 0.0001), although t
he relation was attenuated at high intake (greater than or equal to 50.1 g/
day vs. 0: OR = 0.72, 95% CI 0.57-0.90). Current cigarette smoking was posi
tively related to total BPH only among those who smoked 35 or more cigarett
es/day (compared with never smokers: OR = 1.45, 95% CI 1.07-1.97), These fi
ndings suggest that moderate alcohol consumption and avoidance of smoking m
ay benefit BPH.