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Predictors of tanning dependence in white non-hispanic females and males.

Growing evidence suggests some individuals may exhibit dependence to ultraviolet light, a known carcinogen; however, few studies have investigated predictors of tanning dependence (TD).A sub-set of early-onset basal cell carcinoma case-control study participants completed an online survey. The modified-Cut down, Annoyed, Guilty, Eye-opener (mCAGE) and a questionnaire based on the addiction criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (mDSM-IV-TR) were used to classify participants having'Symptoms of TD' if they met criteria for TD on both questionnaires, 'Tendency for TD' if met criteria on only one questionnaire, or 'Not TD'. We also assessed lifetime alcohol dependence, nicotine dependence, seasonal affective disorder (SAD), 'exercise addiction,' and depression. We compared TD groups with multivariate logistic regression.499 individuals reported volitional tanning and 24.4% were classified as having 'Symptoms of TD' and 24.4% as having a 'Tendency for TD'. Women were more likely to have 'Symptoms of TD' (odds ratio (OR)=6.93; 95% Confidence Interval (95% CI)=(3.36-14.27)) or a 'Tendency for TD' (OR=2.82; 95% CI=1.59-4.98) than men. Alcohol dependence (OR=6.55; 95% CI=3.19-13.42), alcohol abuse (OR=3.16; 95% CI=1.81-5.51), risk of 'exercise addiction' (OR=5.47; 95%=1.15-26.06) and SAD (OR=2.77; 95% CI=1.26-6.09) were all significant predictors for 'Symptoms of TD'. Alcohol dependence (OR=3.66; 95% CI=1.84-7.31) and alcohol abuse (OR=2.60; 95% CI=1.53-4.41) were significant predictors for 'Tendency for TD.'Knowledge of associations between TD and gender, alcohol dependence/abuse, SAD, and 'exercise addiction' may be helpful to practitioners in treating TD and for targeting skin cancer preventive interventions for those with TD.