Ordobás M A, Zorrilla B, Arias P
Servicio de Epidemiología, Direccíon General de Prevencíon y Promoción de la Salud, Madrid, Spain.
J Epidemiol Community Health. 1995 Aug;49 Suppl 1(Suppl 1):14-6. doi: 10.1136/jech.49.suppl_1.14.
The aim was, firstly, to study the validity of the sentinel network data by analysing the correlation between the weekly influenza cases detected by the network and the number of cases notified to the compulsory disease notification system and, secondly, to describe the epidemiology of the period 1991-92 in terms of the sentinel network data.
The study design was descriptive.
The population resident in the city of Madrid.
There was a high correlation between the cases notified to the compulsory disease notification system and those listed by the sentinel network (r = 0.91, p < 0.001, r2 = 0.82). The epidemic activity during the period 1991-92 was centred approximately on week 48 in 1991 and week 6 in 1992 (24 November 1991-8 February 1992). Altogether 913 cases of influenza were notified through the sentinel network. The greatest number of cases occurred in people aged between 20 and 39 years.
For the epidemiological surveillance of influenza it is necessary to develop systems that can quickly detect epidemic periods and provide information about populations at risk, in addition to systems that isolate and identify seasonal epidemic viruses. Both types of data will help the development of adequate public health policies. Sentinel networks provide these data and offer additional advantages such as lower cost.
首先，通过分析哨点网络检测到的每周流感病例数与法定传染病报告系统报告的病例数之间的相关性，研究哨点网络数据的有效性；其次，根据哨点网络数据描述1991 - 1992年期间的流行病学情况。
本研究设计为描述性研究。
马德里市的居民。
法定传染病报告系统报告的病例与哨点网络列出的病例之间存在高度相关性（r = 0.91，p < 0.001，r² = 0.82）。1991 - 1992年期间的疫情活动大致集中在1991年第48周和1992年第6周（1991年11月24日 - 1992年2月8日）。通过哨点网络共报告了913例流感病例。病例数最多的是年龄在20至39岁之间的人群。
对于流感的流行病学监测，除了隔离和鉴定季节性流行病毒的系统外，还需要开发能够快速检测流行期并提供有关高危人群信息的系统。这两类数据都将有助于制定适当的公共卫生政策。哨点网络提供了这些数据，并具有成本较低等额外优势。
