功能性消化不良(FD)是一组很常见的消化系统症候群。人群中20%～40%有消化不良症状,其中一半以上的患者无器质性病变,被诊断为FD[1]。目前,国内外学者对FD的研究偏重于对其治疗及发病机制的探讨,国内未见有系统的地区性流行病学调查分析。我们对枣庄地区(五区一市)1998年7月至1 Functional dyspepsia (FD) is a group of very common digestive system syndromes. 20% to 40% of the population have dyspeptic symptoms and more than half of them have no organic disease and are diagnosed with FD [1]. At present, domestic and foreign scholars focus on the study of FD on its treatment and pathogenesis of the domestic no systematic regional epidemiological survey. We Zaozhuang area (five districts and one city) July 1998 to 1