title: [Analysis of syndromic surveillance of 63 325 outpatients in Fever Clinic in Beijing].
abstract: OBJECTIVE
  To describe findings from syndromic surveillance of Fever Clinic visits and to determine the utility of monitoring Fever Clinic admissions as an indictor of respiratory infectious disease activity in Beijing.
  
  
  METHODS
  A census on outpatients in Fever Clinics was conducted in two grade 3 general hospitals in Beijing from April 1, 2009 to March 31, 2010 based on a typical survey, the epidemiological characteristics of outpatients were analyzed and correlation among Fever Clinic visits, acute febrile respiratory illness (ARI) visits, influenza-like illness (ILI) visits and influenza visits determined.
  
  
  RESULTS
  The seasonal patterns for Fever Clinic visits, ARI visits and ILI visits were quite similar, but that for influenza visits peaked later than those for ARI and ILI visits. There were high positive relationships between ARI visits, ILI visits or influenza visits and Fever Clinic visits, with a pearson's correlation coefficient of 0.99, 0.99 and 0.48, respectively (P<0.001).
  
  
  CONCLUSIONS
  Syndromic surveillance of Fever Clinic visits is valuable for early warning of respiratory infectious disease outbreaks. The Fever Clinic provides a platform for early diagnosis and treatment of respiratory infectious disease.
authors.affiliation: Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing 100191, China.
authors.forename: Xiao-qiu
authors.initials: XQ
authors.lastname: Dai
authors.forename: Min
authors.initials: M
authors.lastname: Liu
authors.forename: Kadeerbai
authors.initials: K
authors.lastname: Haishan
authors.forename: Yu-ling
authors.initials: YL
authors.lastname: Li
authors.forename: Xue-song
authors.initials: XS
authors.lastname: Yang
authors.forename: Hua
authors.initials: H
authors.lastname: Wu
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000553:Ambulatory Care / Q000706:statistics & numerical data*; D002648:Child; D002681:China / Q000453:epidemiology; D005260:Female; D005334:Fever / Q000453:epidemiology* / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011159:Population Surveillance / Q000379:methods*; D012141:Respiratory Tract Infections / Q000150:complications / Q000453:epidemiology*; D055815:Young Adult