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至1983年8月为止,从美国报告疾病控制中心的2,157例获得性免疫缺陷综合征(AIDS)患者中,2,033例属AIDS高危人群(同性恋或两性恋男性、静注药瘾者、海地移民、血友病者)。其它124例中,82例患卡氏肺囊虫肺炎,42例患其它机会感染或Kaposi肉瘤。82例卡氏肺囊虫肺炎中,18例与高危人群的男子或女子有性关系,其余64例中,18例起病前5年内接受过某种血液成份的输血,属输血相关性AIDS患者。46例属非输血引起的卡氏肺囊虫肺炎,两者相比,前类患者多为白种人(P=0.00008)
As of August 1983, out of 2,157 Acquired Immunodeficiency Syndrome (AIDS) patients reported by the Centers for Disease Control in the United States, 2,033 were at high risk for AIDS (homosexual or bisexual men, intravenous drug addicts, Haitian immigrants, Hemophilia). Of the other 124 cases, 82 had Pneumocystis carinii pneumonia and 42 had other opportunistic infections or Kaposi’s sarcoma. Of the 82 cases of Pneumocystis carinii pneumonia, 18 had sex with men or women in high-risk groups. Of the remaining 64 cases, 18 received blood transfusions within 5 years prior to onset and were transfusion-related AIDS patients . Forty-six cases were non-transfusion-induced Pneumocystis carinii pneumonia, both of whom were predominantly Caucasian (P = 0.00008)