Association of smoking and alcohol consumption and prevalence of MS according to IDF criteria among 13,505 women in rural China, the NMSS during 2007–2008.

aAdjusted for age at interview and BMI.bAdjusted for age at interview, BMI, education, marital status, income, occupation, ever smoker, ever drinker, tea consumption, history of diabetes and CVD.cP for trend was calculated by entering the ordinal exposure as continuous parameters in the model.