Regional variations discovered in the prevalence and misdiagnosis of air flow obstruction

May 26, 2014 12:00 AM

New research from the China Kadoorie Biobank, published online in the BMJ Open Respiratory Research, highlights striking variations in the prevalence and misdiagnosis of air flow obstruction (AFO) across 10 regions of China.

Analysis of the spirometry-measured lung-function data collected from over 0.5 million adults in the Biobank indicates that the burden of AFO in China is significantly higher than that estimated based on self-reported physician diagnosed chronic bronchitis or emphysema.  Data analysis reveals up to 10-fold difference in the prevalence of AFO between different regions in China for both men and women. This variation reflects major issues with the diagnosis of AFO which, in turn, will impact on disease treatment and management as well as the development of appropriate prevention programmes. Read the article