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Frequency of cancer in children residing in Mexico City and treated in the hospitals of the Instituto Mexicano del Seguro Social (1996–2001)

机译:居住在墨西哥城并在墨西哥塞古罗社会研究所的医院接受治疗的儿童患癌症的频率(1996年至2001年)

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Background The objective of this article is to present the frequency of cancer in Mexican children who were treated in the hospitals of the Instituto Mexicano del Seguro Social in Mexico City (IMSS-MC) in the period 1996–2001. Methods The Registry of Cancer in Children, started in 1996 in the IMSS-MC, is an on-going, prospective register. The data from 1996 through 2001 were analyzed and the different types of cancer were grouped according to the International Classification for Cancer in Children (ICCC). From this analysis, the general and specific frequencies by age and by sex were obtained for the different groups of neoplasms. Also, the frequency of the stage of the disease that had been diagnosed in cases of children with solid tumors was obtained. Results A total of 1,702 new cases of children with cancer were registered, with the male/female ratio at 1.1/1. Leukemias had the highest frequency with 784 cases (46.1%) and, of these, acute lymphoblastic leukemias were the most prevalent with 614 cases (78.3%). Thereafter, in descending order of frequency, were tumors of the central nervous system (CNST) with 197 cases (11.6%), lymphomas with 194 cases (11.4%), germinal cell tumors with 110 cases (6.5%), and bone tumors with 97 cases (5.7%). The highest frequency of cancer was found in the group of one to four year-olds that had 627 cases (36.8%). In all the age groups, leukemias were the most frequent. In the present work, the frequency of Hodgkin's disease (~4%) was found to be lower than that (~10%) in previous studies and the frequency of tumors of the sympathetic nervous system was low (2.3%). Of those cases of solid tumors for which the stage of the disease had been determined, 66.9% were diagnosed as being Stage III or IV. Conclusions The principal cancers in the children treated in the IMSS-MC were leukemias, CNST, and lymphomas, consistent with those reported by developed countries. A 2.5-fold reduction in the frequency of Hodgkin's disease was found. Of the children, the stage of whose disease had been determined, two thirds were diagnosed as having advanced stages of the disease.
机译:背景技术本文的目的是介绍1996年至2001年在墨西哥城墨西哥塞古罗社会研究所(IMSS-MC)的医院接受治疗的墨西哥儿童的癌症发病率。方法1996年在IMSS-MC中开始的儿童癌症登记册是一个持续进行的前瞻性登记册。分析了1996年至2001年的数据,并根据国际儿童癌症分类(ICCC)对不同类型的癌症进行了分组。通过该分析,获得了不同年龄组的肿瘤的按年龄和性别的一般和特定频率。而且,获得了在患有实体瘤的儿童的情况下已诊断出的疾病分期的频率。结果共登记新发癌症儿童1702例,男女之比为1.1 / 1。白血病发生率最高,为784例(46.1%),其中,急性淋巴细胞白血病最常见,为614例(78.3%)。此后,按频率从高到低的顺序依次为:中枢神经系统肿瘤(CNST)197例(11.6%),淋巴瘤194例(11.4%),生殖细胞瘤110例(6.5%)和骨肿瘤97例(5.7%)。在627例病例中,一到四岁的人群中发现癌症的频率最高(36.8%)。在所有年龄段中,白血病都是最常见的。在目前的工作中,发现霍奇金病的发生率(〜4%)低于以前的研究(〜10%),而交感神经系统肿瘤的发生率很低(2.3%)。在已确定疾病阶段的实体瘤病例中,有66.9%被诊断为III或IV期。结论IMSS-MC治疗儿童的主要癌症为白血病,CNTS和淋巴瘤,与发达国家报道的一致。发现霍奇金氏病的发病率降低了2.5倍。在已确定疾病阶段的儿童中,三分之二被诊断为疾病晚期。

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