Clustering pattern of multiple chronic disease risk factors in Chinese adults aged 15–69 years (2007 China Chronic Disease and Risk Factor Surveillance).

aUsing tobacco every day or on some days currently.bConsuming 25 g pure alcohol or more per drinking day for men and 15 g or more for women.cLow level of activity according to the criteria of Global Physical Activity Questionnaire.dConsuming fruit and vegetable less frequently than daily in the past 12 months.eIndividuals who had a body mass index≥25.fPercentages were weighted to represent the total population of national disease surveillance points. system with post stratification for age and gender.gCI: Confidence intervals taking into account the complex survey design.