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本文用圆形分布理论研究了１９９０～１９９２年广西１０个县（市、区）的死因调查资料。对前１０位死因的逐月死亡频数分布的研究认为：本次死因调查的逐月死亡频数分布并不像疾病病例分布那样具有明显的季节性，且各月的死因顺位为循环系疾病、呼吸系疾病、肿瘤、损伤和中毒、传染病寄生虫、消化系疾病、新生儿病、泌尿生殖系病、内分泌代谢免疫性疾病的依次顺位，但女性逐月死因顺位则以呼吸系疾病为首位，其他相同。用单死因进行逐月死因顺位分析，各月基本以脑血管病、气管炎肺气肿哮喘、肺结核、肺炎、肝肿瘤、慢性肝病和肝硬化、慢性风心等顺序排位。研究认为以单死因顺位比系统疾病顺位分析更易比较且直观。
In this paper, the circular distribution theory was used to investigate the cause of death data of 10 counties (cities and districts) in Guangxi from 1990 to 1992. The study on the frequency distribution of monthly deaths of the top 10 causes of death shows that the monthly frequency of deaths in the current investigation of death causes is not as seasonal as the distribution of disease cases and the order of death causes in each month is circulatory diseases. Respiratory diseases, tumors, injuries and poisonings, parasitic infectious diseases, digestive diseases, neonatal diseases, genitourinary diseases and endocrine and metabolic immune diseases in turn, but the monthly by-pass causes of death in women are respiratory diseases For the first place, the others are the same. With a single cause of death by month due to the cis-position analysis, the basic monthly cerebrovascular disease, bronchitis, emphysema, asthma, tuberculosis, pneumonia, liver cancer, chronic liver disease and cirrhosis, chronic heart disease order. Studies suggest that single-cause versus systematic disease rank analysis is easier and more intuitive.