The latest separate adjustable was decades initially sexual intercourse’ Actions Data was extracted from new 2011 Multiple Indication Class Questionnaire (MICS) in the Vietnam. This get across-sectional questionnaire is actually presented by Standard Analytics Workplace from Vietnam on new federal top having urban and you may rural elements and Vietnam’s half a dozen places: Purple River Delta, Northern Midlands and Mountain portion, North Central city and you may Central Coastal town, Main Highlands, South east, and also the Mekong Lake Delta. Two-stage strata (metropolitan and you may outlying) sampling was utilized to choose 12,000 home agents of which 11,642 was expose in the course of brand new questionnaire.