Journal Article

Mortality trends for ischemic heart disease in China: an analysis of 102 continuous disease surveillance points from 1991 to 2009

Wan, Xia, Ren, Hongyan, Ma, Enbo, Yang, Gonghuan

2017

Overview

Background In the past 20 years, the trends of ischemic heart disease (IHD) mortality in China have been described in divergent claims. This research analyzes mortality trends for IHD by using the data from 102 continuous Disease Surveillance Points (DSP) from 1991 to 2009. Method The 102 continuous DSP covered 7.3 million people during the period 1991–2000, and then were expanded to a population of 52 million in the same areas for 2004–2009. The data were adjusted by using garbage code redistribution and underreporting rate, mapped from international classification of diseases ICD-9 to ICD-10. The mortality rates for IHD were further adjusted by the crude death proportion multiplied by the total number of deaths in the mortality envelope, which was calculated by using logr t  = a + bt. Age-standard death rates (ASDRs) were computed using China’s 2010 census population structure. Trend in IHD was calculated from ASDRs by using a joinpoint regression model. Results The IHD ASDRs increased in total in regions with an average annual percentage change (AAPC) 4.96%, especially for the Southwest (AAPC = 7.97%) and Northeast areas (AAPC = 7.10%), and for male and female subjects (with 5% AAPC) as well. In rural areas, the year 2000 was a cut-off point for mortality rate with annual percentage change increasing from 3.52% in 1991–2000 to 9.02% in 2000–2009, which was much higher than in urban areas (AAPC = 1.05%). And the proportion of deaths increased in older adults, and more male deaths occurred before age 60 compared to female deaths. Conclusion By observing a wide range of areas across China from 1991 to 2009, this paper concludes that the ASDR trend for IHD increased. These trends reflect changes in the Chinese standard of living and lifestyle with diets higher in fat, higher blood lipids and increased body weight.

• Publisher: BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
• Subject: Adult / Age Factors / Aged / Aged, 80 and over / Analysis / Asian Continental Ancestry Group - statistics & numerical data / Atherosclerosis / Biostatistics / Body weight / Cardiovascular disease / Cardiovascular diseases / Care and treatment / China / China - epidemiology / Chronic Disease epidemiology / Chronic obstructive pulmonary disease / Codes / Coronary artery disease / Data collection / Disease prevention / Disease surveillance points / Environmental Health / Epidemiology / Fatalities / Female / Forecasting / Garbage / Heart diseases / Hospitals / Humans / Ischemia / Ischemic heart disease / Lipids / Male / Medicine / Medicine & Public Health / Middle Aged / Monte Carlo simulation / Mortality / Mortality - trends / Mortality rate / Myocardial ischemia / Myocardial Ischemia - mortality / Older people / Population / Population structure / Population Surveillance / Public Health / Registration / Regression analysis / Regression models / Research Article / Rural areas / Rural Population - statistics & numerical data / Rural Population - trends / Sex Factors / Standard of living / Surveillance / Trends / Urban areas / Urban Population - statistics & numerical data / Urban Population - trends / Vaccine