Table 5.

Age- and sex-adjusted multiple logistic regression analysis of behavioral characteristics and the prevalence of ACFs in normal subjects

VariableProportion, %ACF prevalence, %OR (95% CI)
UnivariatePMultivariateP
Smoking (−), alcohol (−)63581 (reference)1 (reference)
Smoking (+), alcohol (−)16671.5 (0.8–2.7)0.171.6 (0.9–3.1)0.12
Smoking (−), alcohol (+)7732.0 (0.8–4.9)0.132.0 (0.8–5.0)0.15
Smoking (+), alcohol (+)14874.8 (2.1–11.1)<0.0015.4 (2.3–13.0)<0.001

NOTE: Smoking habit was defined as positive if the subject had more than 10 pack-years and was still smoking or had quit within the past 10 years. Alcohol habit was defined as positive if the subject's alcohol consumption exceeded 45 g/d. The multivariate logistic regression analysis was adjusted for age and sex.