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Article: A prospective cohort study on the comparison of risk of occupational dust exposure and smoking to death

TitleA prospective cohort study on the comparison of risk of occupational dust exposure and smoking to death
接塵、吸煙者死亡危險度比較的前瞻性隊列研究
Authors
Issue Date2004
PublisherChinese Medical Association [中華醫學會]. The Journal's web site is located at http://zhlxbx.periodicals.net.cn/
Citation
中華流行病學雜誌, 2004, v. 25 n. 9, p. 748-752 How to Cite?
Chinese Journal of Epidemiology, 2004, v. 25 n. 9, p. 748-752 How to Cite?
AbstractObjective To compare the effects ot dust exposure and smoking on mortality. Methods Based on the Guangzhou Occupational Health Surveillance Record System established in 1989-1992, 80 987 factory workers, aged≥30, occupationally exposed to dust and non-exposure to dust, were included in a prospective cohort study. Results (1) The mean age of the cohort was 43.5. Most subjects were workers, with secondary education, and married. Out of them 16.3 % having ever exposed to dust,43.7 % ever smoked and 33.5 % drank-alcohol. (2) The cohort were traced for 8 years on average, but 35 were lost for follow-up. Malignant neoplasm was most commonly seen among 1539 deaths. (3) The adjusted relative risk (RRs) of death of all causes, malignant neoplasm and cerebro-cardiovascular diseases for dust exposed workers were close to those for smokers. However, the adjusted RRs of death of nasopharynx cancer and respiratory system diseases for dust exposed workers were higher than those for smokers. The adjusted RRs of death of lung cancer and stomach cancer for smokers were 2.2 times and 1.5 times of that for dust exposed workers respectively. Dust exposure combined with smoking caused significantly higher death RR. (4) In males, the adjusted RRs of death of all causes, malignant neoplasm and respiratory system diseases for silica dust exposed workers and the adjusted RR of death of cerebro-cardiovascular diseases for wood dust exposed workers were higher those in smokers. (5) The population attributable risk percentage (PARP) of all causes of death for smokers was 2.5 times of that for dust exposed workers. (6) In males, the risks of death for all causes, malignant neoplasm, lung cancer and stomach cancer increased with the amount of smoking per day and the duration of smoking. The risks of death caused by coronary heart disease and respiratory system diseases were increasing with the amount of smoking per day and the duration of smoking respectively. Conclusions The adjusted RRs for dust exposed workers were close to those for smokers with dust exposure and smoking having synergistic effects. Some of the adjusted RRs for smokers were higher than those for dust exposed workers PARP for smokers was higher than that for dust exposed workers. Our findings suggested that there was a significant dose-effect between smoking and risk of deaths.
Persistent Identifierhttp://hdl.handle.net/10722/86845
ISSN

 

DC FieldValueLanguage
dc.contributor.authorZhang, WSen_HK
dc.contributor.authorJiang, CQen_HK
dc.contributor.authorLam, THen_HK
dc.contributor.authorHo, DSYen_HK
dc.contributor.authorChen, Qen_HK
dc.contributor.authorLiu, WWen_HK
dc.contributor.authorHe, JMen_HK
dc.contributor.authorCao, Men_HK
dc.date.accessioned2010-09-06T09:22:02Z-
dc.date.available2010-09-06T09:22:02Z-
dc.date.issued2004en_HK
dc.identifier.citation中華流行病學雜誌, 2004, v. 25 n. 9, p. 748-752en_HK
dc.identifier.citationChinese Journal of Epidemiology, 2004, v. 25 n. 9, p. 748-752-
dc.identifier.issn0254-6450-
dc.identifier.urihttp://hdl.handle.net/10722/86845-
dc.description.abstractObjective To compare the effects ot dust exposure and smoking on mortality. Methods Based on the Guangzhou Occupational Health Surveillance Record System established in 1989-1992, 80 987 factory workers, aged≥30, occupationally exposed to dust and non-exposure to dust, were included in a prospective cohort study. Results (1) The mean age of the cohort was 43.5. Most subjects were workers, with secondary education, and married. Out of them 16.3 % having ever exposed to dust,43.7 % ever smoked and 33.5 % drank-alcohol. (2) The cohort were traced for 8 years on average, but 35 were lost for follow-up. Malignant neoplasm was most commonly seen among 1539 deaths. (3) The adjusted relative risk (RRs) of death of all causes, malignant neoplasm and cerebro-cardiovascular diseases for dust exposed workers were close to those for smokers. However, the adjusted RRs of death of nasopharynx cancer and respiratory system diseases for dust exposed workers were higher than those for smokers. The adjusted RRs of death of lung cancer and stomach cancer for smokers were 2.2 times and 1.5 times of that for dust exposed workers respectively. Dust exposure combined with smoking caused significantly higher death RR. (4) In males, the adjusted RRs of death of all causes, malignant neoplasm and respiratory system diseases for silica dust exposed workers and the adjusted RR of death of cerebro-cardiovascular diseases for wood dust exposed workers were higher those in smokers. (5) The population attributable risk percentage (PARP) of all causes of death for smokers was 2.5 times of that for dust exposed workers. (6) In males, the risks of death for all causes, malignant neoplasm, lung cancer and stomach cancer increased with the amount of smoking per day and the duration of smoking. The risks of death caused by coronary heart disease and respiratory system diseases were increasing with the amount of smoking per day and the duration of smoking respectively. Conclusions The adjusted RRs for dust exposed workers were close to those for smokers with dust exposure and smoking having synergistic effects. Some of the adjusted RRs for smokers were higher than those for dust exposed workers PARP for smokers was higher than that for dust exposed workers. Our findings suggested that there was a significant dose-effect between smoking and risk of deaths.-
dc.languagechien_HK
dc.publisherChinese Medical Association [中華醫學會]. The Journal's web site is located at http://zhlxbx.periodicals.net.cn/-
dc.relation.ispartof中華流行病學雜誌en_HK
dc.relation.ispartofChinese Journal of Epidemiology-
dc.titleA prospective cohort study on the comparison of risk of occupational dust exposure and smoking to deathen_HK
dc.title接塵、吸煙者死亡危險度比較的前瞻性隊列研究-
dc.typeArticleen_HK
dc.identifier.emailJiang, CQ: cqjiang@HKUCC.hku.hken_HK
dc.identifier.emailLam, TH: hrmrlth@hkucc.hku.hken_HK
dc.identifier.emailHo, DSY: syho@hkusua.hku.hken_HK
dc.identifier.authorityLam, TH=rp00326en_HK
dc.identifier.authorityHo, DSY=rp00427en_HK
dc.identifier.doi10.3760/j.issn:0254-6450.2004.09.004-
dc.identifier.hkuros96521en_HK
dc.identifier.volume25-
dc.identifier.issue9-
dc.identifier.spage748-
dc.identifier.epage752-
dc.publisher.placeChina-
dc.identifier.issnl0254-6450-

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