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目的快速评估2009年10月1日至12月31日广州市居民流感样病例与普通感冒病例的发病、就诊的情况。方法采用计算机辅助电话调查系统(CATI)及统一调查表,对广州市居民在2009年10月1日至12月31日期间流感样疾病的发病、诊疗情况进行调查,用描述性流行病学方法对数据进行分析。结果该次调查共计拨出电话6 325个,拨通有效电话1 030个,成功调查505户居民(共调查1 197人),成功应答率为49.03%。流感样病例、普通感冒病例的罹患率分别为6.02%(72/1 197)和8.77%(105/1 197),高发人群均为低年龄组,尤其是10岁以下人群(流感样病例、普通感冒病例的罹患率分别为20.99%和9.88%);流感样病例男女性罹患率分别是6.19%(37/598)和5.84%(35/599);11月份流感样病例罹患率(2.92%)高于10、12月(分别为1.84%、1.25%)(P<0.05)。采用直接标化法估计2009年第4季度广州市居民流感样病例发病率为7.37%(733 194/9 942 022)。流感样病例和普通感冒病例选择到省、市级医院就诊的比例最高,分别为41.67%和46.67%。结论 2009年第4季度广州市居民流感样疾病罹患率高于往年同期水平,低年龄组尤其是10岁以下人群是流感样疾病的高发人群,应加强对这部分人群呼吸道传染病的预防。
Objective To quickly assess the incidence and treatment of influenza-like cases and common cold cases in Guangzhou residents from October 1 to December 31, 2009. Methods A computer-assisted telephone survey system (CATI) and a unified questionnaire were used to investigate the incidence and diagnosis of influenza-like illness in Guangzhou residents between October 1, 2009 and December 31, 2009. Descriptive epidemiological methods Analyze the data. Results A total of 6 325 telephone calls were made and 1,030 valid telephone numbers were dialed. A total of 505 households (1 197 were investigated) were successfully investigated. The response rate was 49.03%. The prevalence rates of influenza-like cases and common cold cases were 6.02% (72/1 197) and 8.77% (105/1 197) respectively. The high-risk groups were all in the low-age group, especially those under 10 years of age The prevalence rates of influenza-like illness were 6.19% (37/598) and 5.44% (35/599) respectively. The incidence of influenza-like illness in November was 2.92% Higher than that in October and December (1.84% and 1.25%, respectively) (P <0.05). The direct standardization method was used to estimate the incidence of influenza-like illness in Guangzhou residents in the fourth quarter of 2009 was 7.37% (733 194/9 942 022). Influenza-like cases and common cold cases to the provincial and municipal hospitals the highest proportion of visits, respectively 41.67% and 46.67%. Conclusion In the fourth quarter of 2009, the prevalence of influenza-like illness in Guangzhou residents was higher than that of the same period in previous years. The low-age group, especially those under 10 years of age, were among the high incidence of influenza-like illness. Prevention of respiratory infectious diseases in this population should be strengthened.