title: [Inspection on the one-month attack rate of community acquired pneumonia among old persons in Shanghai, China].
abstract: OBJECTIVE
  To investigate the one-month attack rate of community acquired pneumonia (CAP) among persons at the age of 65 year old and above in Shanghai, China.
  
  
  METHODS
  Through pertinently sampling we selected Xinhua community and Bansongyuan community were selected as our study field. All the persons in the two communities of 65 years and above, which were 16000 residents, which were the subjects for the survey of investigating the one-month attack rate of CAP between February and March in 2004.
  
  
  RESULTS
  The one-month attack rate of the ascertained CAP cases was 0.21% (95% CI 0.14%-0.29%), of the suspected cases was 0.1% (95% CI 0.06%-0.16%), of the total was 0.31% (95% CI 0.23%-0.41%). The one-month attack rate of CAP in males and females were 0.32% (95% CI 0.21%-0.48%) and 0.29% (95% CI 0.19%-0.43%) respectively. The one-month attack rate increased with the age and it was statistically significant through trend chi-square test.
  
  
  CONCLUSIONS
  Among of equal or more than 65 years old in Shanghai, the total one-month attack rate of CAP was 0.31%, which was lower than the rate that reported in the American, and the one-month attack rate of CAP increased with the age.
authors.affiliation: Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China. baiqingrui@hotmail.com
authors.forename: Qingrui
authors.initials: Q
authors.lastname: Bai
authors.forename: Biao
authors.initials: B
authors.lastname: Xu
authors.forename: Tieying
authors.initials: T
authors.lastname: Sun
authors.forename: Tao
authors.initials: T
authors.lastname: Zhang
mesh_terms: D000367:Age Factors; D000368:Aged; D002681:China / Q000453:epidemiology; D017714:Community-Acquired Infections / Q000453:epidemiology*; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D011014:Pneumonia / Q000453:epidemiology*