Ontology highlight
ABSTRACT: Objective
This study aims to understand the age patterns of smoking initiation during adolescence and young adulthood in South-West China, where the prevalence of tobacco use is reported as the highest in the country.Design
A cross-sectional study.Setting
The data were derived from the China National Nutrition and Health Survey in Yunnan Province, South-West China (2010-2012).Participants
A total of 4801 participants aged 15-65 years were included.Primary outcome measures
A survival model was used to estimate the hazard of smoking initiation by age and log-rank test was used to compare the hazard curves across subgroups (men/women, urban/rural, Han Chinese/ethnic minority).Results
The prevalence of current smoking among men and women were 60.
SUBMITTER: Zhang Q
PROVIDER: S-EPMC5988072 | biostudies-literature | 2018 May
REPOSITORIES: biostudies-literature