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采用回顾性定群研究方法，对济南市１１９例输血后丙型肝炎感染情况进行了调查。结果表明，１１９例受血者中，抗－ＨＣＶ阳性３１例，阳性率为２６．１％，其中１４例为临床丙型肝炎患者，罹患率为１１．７％。输入经筛检血液的受血者中，ＨＣＶ感染率和丙肝罹患率分别为１４．６％和４．２％，输入未经筛检血液者分别为３３．８％和１６．９％，差异有显著性（Ｐ＜０．０５，ＲＲ＝２．３０ＲＲ＝４．０２）。对输血量，输血次数及住院天数双向筛选法多元线性逐步回归分析表明，输血量是影响受血者感染ＨＣＶ的主要因素。
A retrospective population-based study was conducted to investigate the status of hepatitis C infection in 119 cases of transfusion in Jinan City. The results showed that of the 119 recipients, 31 were positive for anti-HCV, the positive rate was 26.1%. Among them, 14 were clinical hepatitis C patients with an attack rate of 11.7%. In the blood recipients who were screened for blood, the prevalence of HCV infection and hepatitis C were 14.6% and 4.2%, respectively, with 33.8% and 16.9% of the untreated blood, respectively There was significant (P <0.05, RR = 2.30RR = 4.02). The multiple linear stepwise regression analysis of blood transfusion, number of transfusions and length of hospital stay showed that transfusion volume was the main factor influencing HCV infection in recipients.