Sample Characteristics and Distribution of Smoking Duration among Male Ever Smokers Aged 18+, CHNS, 2006 (N = 2,637).
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a nc refers to not being computed due to ties and/or insufficient uncensored cases. b Due to ties and/or insufficient uncensored cases, we can’t compute median durations of smoking for occupation and age group. To compare results, we estimated mean durations of smoking for occupation and age group, which tend to be lower than median durations of smoking. Sample Characteristics and Distribution of Smoking Duration among Male Ever Smokers Aged 18+, CHNS, 2006 (N = 2,637).
创建时间：
2015-01-09
