Emerging tobacco hazards in China: 2. Early mortality results from a prospective study.
BMJ
; 317(7170): 1423-4, 1998 Nov 21.
Article
em En
| MEDLINE
| ID: mdl-9822394
ABSTRACT
OBJECTIVE:
To monitor the evolving epidemic of mortality from tobacco in China following the large increase in male cigarette use in recent decades.DESIGN:
Prospective study of smoking and mortality starting with 224 500 interviewees who should eventually be followed for some decades.SETTING:
45 nationally representative small urban or rural areas distributed across China.SUBJECTS:
Male population aged 40 or over in 1991, of whom about 80% were interviewed about smoking, drinking, and medical history. MAIN OUTCOMEMEASURE:
Cause specific mortality, initially to 1995 but later to continue, with smoker versus non-smoker risk ratios standardised for area, age, and use of alcohol.RESULTS:
74% were smokers (73% current, only 1% former), but few of this generation would have smoked substantial numbers of cigarettes since early adult life. Overall mortality is increased among smokers (risk ratio 1.19; 95% confidence interval 1.13 to 1.25, P<0.0001). Almost all the increased mortality involved neoplastic, respiratory, or vascular disease. The overall risk ratios currently associated with smoking are less extreme in rural areas (1.26, 1.12, or 1.02 respectively for smokers who started before age 20, at 20-24, or at older ages) than in urban areas (1.73, 1.40, or 1.16 respectively).CONCLUSION:
This prospective study and the accompanying retrospective study show that by 1990 smoking was already causing about 12% of Chinese male mortality in middle age. This proportion is predicted to rise to about 33% by 2030. Long term continuation of the prospective study (with periodic resurveys) can monitor the evolution of this epidemic.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Fumar
Tipo de estudo:
Etiology_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adult
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Aged
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Humans
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Male
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Middle aged
País/Região como assunto:
Asia
Idioma:
En
Revista:
BMJ
Assunto da revista:
MEDICINA
Ano de publicação:
1998
Tipo de documento:
Article