The future health burden prediction in Jiangxi province.

Data of population and Pregnancies/year was obtained from Web of Jiangxi Provincial government (http://www.gztj.gov.cn); Southern area: Ganzhou region; Middle area: Ji'an region, Pingxiang region, Yichun region and Xinyu region; Northern area: Nanchang region, Jingdezhen region, Wuzhou region, Jiujiang region and Shangrao region. β-thalassemia M-I: β-thalassemia major or intermedia.