[Study on smoking attributed death and effects of smoking cessation in residents aged 35-79 years in Tianjin, 2016].

To analyze the influence of smoking on deaths in residents aged 35-79 years and the effects of smoking cessation in Tianjin. The data of 39 499 death cases aged 35-79 years in 2016 in Tianjin were collected, the risks for deaths caused by smoking related diseases and excess deaths as well as effects of smoking cessation were analyzed after adjusting 5 year old age group, education level and marital status. Among the 39 499 deaths cases, 1 589 (13.56%) were caused by smoking, the percentage of the excess mortality of lung cancer caused by smoking was highest (47.60%); the risk of death due to lung cancer in smokers was 2.75 times higher than that in non-smokers (95: 2.47-3.06). Among the female deaths, 183 (7.29%) were caused by smoking, the percentage of the excess mortality of lung cancer was highest (28.90%); and the risk of death of lung cancer in smokers was 4.04 times higher than that in non-smokers (95: 3.49-4.68). The for disease in ex-smokers was 0.80 compared with 1.00 in smokers (95: 0.72-0.90). The in males who had quitted smoking for ≥10 years was lower (0.74, 95: 0.63-0.86) than that in those who had quitted smoking for 1-9 years (0.85, 95: 0.74-0.98), but the difference was not significant. Smoking is one of the most important risk factors for deaths in residents in Tianjin. Smoking cessation can benefit people's health.