当前位置： SCI文献检索 > ARCHIVES OF MEDICAL RESEARCH期刊下所有文献 > Human papilloma virus 16-18 infection and cervical cancer in Mexico: a case-control study.

Human papilloma virus 16-18 infection and cervical cancer in Mexico: a case-control study.

Abstract：

:Cervical cancer (CC) is one of the principal public health problems in Mexico. The national mortality rate due to CC was estimated at 21.8 per 100,000 among women over 15 years old during 1994. Despite this high incidence little is known in Mexico about the risk factors for CC. The objectives of the study were to evaluate the association between CC and HPV types 16 and 18 in women living in Mexico City. From August, 1990 to December, 1992, a case-control study was carried out in the metropolitan area of Mexico City. HPV 16-18 types were determined in a sample of 148 CC cases and 204 controls randomly selected from a sample frame representative of the metropolitan area of Mexico City. Sixty cases corresponded to in situ CC and 88 cases to the invasive phase. Determination of HPV 16 and 18 types was done by polymerase chain reaction using primers specific to E6/E7. Results showed that 48.3% of in situ CC cases and 48.8% of invasive CC cases were positive for HPV 16 while only 13.2% were positive among the 204 controls. Association between HPV 16 infection in the in situ cancer cases had an estimated odds ratio (OR) of 5.17 (95% CI 2.60-10.51). In the invasive cervical cancer cases, association between HPV 16 infection and invasive CC in this sample had an OR of 3.84 (95% CI 2.04-7.22). For the total sample, the estimated OR was 5.48 (95% CI 3.07-9.62). In the total sample, those women with a strong positive reaction to PCR were associated with a large increase in the risk, OR of 38.0 (95% CI 8.66-167.1). The prevalence the HPV 18 was 6.7%, only observed in the invasive cervical cancer cases. At present there is general consensus that HPV is the principal causal agent in C C etiology. This study intends to contribute to the knowledge concerning the etiology of cervical cancer. However, it is necessary to consider that the single most effective tool in the reduction of mortality due to cervical cancer has been the Pap test. Secondary prevention has proven to be highly effective in other populations, and this should be viewed as a priority activity for all at-risk populations. Although a vaccine for HPV may be available in the near future its efficacy in primary prevention has yet to be demonstrated.

journal_name

Arch Med Res

journal_title

Archives of medical research

authors

Hernández-Avila M,Lazcano-Ponce EC,Berumen-Campos J,Cruz-Valdéz A,Alonso de Ruíz PP,Gonźalez-Lira G

subject

Has Abstract

pub_date

1997-07-01 00:00:00

pages

265-71

issue

eissn

0188-4409

issn

1873-5487

journal_volume

pub_type

杂志文章

在线工具

Human papilloma virus 16-18 infection and cervical cancer in Mexico: a case-control study.