Why the study?
Does ever-smoking increase all-cause and tobacco-associated mortality in adults aged 35 years or older in China?
Population
1,696 adults aged 35 years or older (1,124 men and 572 women) working in a machinery factory in Xi'an, China
Comparison
Ever-smoking vs Never-smoking
Design
Cohort
Follow-up
20 years
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May warrant intensified smoking cessation efforts in China; extends Western mortality data to this population but leaves causal effects open.
Does ever-smoking increase all-cause and tobacco-associated mortality in adults aged 35 years or older in China?
With 20 years of follow-up, smoking is demonstrated to be a major cause of death in China, with mortality risks similar to those seen in Western countries.
A 1997 study studied this question.
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