癌症的流行病学在发展中国家,癌症作为一种相对被忽视的疾病,正逐步成为导致疼痛和死亡的重要原因。在很多国家尤其是撒哈拉以南的非洲地区,因艾滋病伴发的癌症引发了很多问题。根据2002年的统计数字,全球共有癌症病例1090万,死亡病例670万,三年内诊断患有癌症现仍存活的有2460 Epidemiology of Cancer In developing countries, cancer, as a relatively neglected disease, is gradually becoming a leading cause of pain and death. In many countries, especially in sub-Saharan Africa, cancer associated with AIDS raises many problems. According to the statistics of 2002, there were 10.9 million cancer cases in the world and 6.7 million deaths. There are 2,460 cases of cancer still diagnosed within three years