Increasing Prevalence of Type 2 Diabetes in Chinese Adults in Shanghai
- Rui Li, MD1,
- Wei Lu, MD, PHD1,
- Qing Wu Jiang, MD, MPH2,3,
- Yan Yun Li, MD1,
- Gen Ming Zhao, MD, PHD2,3,
- Liang Shi, MD1,
- Qun Di Yang, MD, MPH1,
- Ye Ruan, MD, PHD1,
- Junyi Jiang, MD2,3,
- Sheng Nian Zhang, MD1,
- Wang Hong Xu, MD, PHD2,3⇓ and
- Wei Jian Zhong, MD, PHD1⇓
- 1Shanghai Municipal Center for Disease Control and Prevention, Shanghai, People’s Republic of China
- 2Department of Epidemiology, School of Public Health, Fudan University, Shanghai, People’s Republic of China
- 3Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, People’s Republic of China
- Corresponding author: Wang Hong Xu, , or Wei Jian Zhong, .
OBJECTIVE Our objective was to determine the secular trend in prevalence of type 2 diabetes in Shanghai, China.
RESEARCH DESIGN AND METHODS Two consecutive population-based surveys for type 2 diabetes were conducted in randomly selected adults aged 35–74 years in Shanghai in 2002–2003 (n = 12,329) and in 2009 (n = 7,423). Diagnosed type 2 diabetes was determined based on self-report, whereas those undiagnosed were identified by measured fasting and postload glucose according to 2009 American Diabetes Association criteria.
RESULTS Age-standardized prevalence of diagnosed and undiagnosed type 2 diabetes increased from 5.1 and 4.6% in 2002–2003 to 7.4 and 5.2% in 2009. The prevalence of type 2 diabetes increased with age and was higher among men and in urban residents in both surveys (P < 0.001). Between the two surveys, the increase in the prevalence was more evident in the rural population (P < 0.001) and appeared more rapid in younger birth cohorts (P < 0.05).
CONCLUSIONS Our results suggest that Shanghai has experienced an increasing burden of type 2 diabetes.
- Received June 27, 2011.
- Accepted January 15, 2012.
- © 2012 by the American Diabetes Association.
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