title: [The impact of geriatric tuberculosis patients on the tuberculosis control strategy in China].
abstract: OBJECTIVE
  To study the current status of geriatric tuberculosis (TB) and its impact on TB control program under the directly observed treatment short-course (DOTS) strategy in China.
  
  
  METHODS
  Using the prevalence information regarding the epidemiology of geriatric TB from the National Random Survey in 2000, a case-control study was carried out to analyze the case detection, treatment and management of geriatric TB patients between DOTS area and non-DOTS area.
  
  
  RESULTS
  The prevalence of sputum smear positive (SS+) in the age group of 65 or above was 440/100 000 which was 3.6 times of the average prevalence of SS+ of all age groups. Geriatric SS+ patients took up 28.8% of all the TB patients in 13 provinces with implementation of DOTS and 28.9% in 15 provinces without. The population of TB case in the age group 65 or above occupied 11.4% of all the newly registered SS+ case in 13 DOTS provinces from 1992 to 2000.
  
  
  CONCLUSIONS
  The prevalence of geriatric SS+ was high. In both DOTS and non-DOTS areas, the proportion of geriatric SS+ was high but the registration rate of new SS+ was low among all the age groups. Both high prevalence and low case detection rate of geriatric TB became main issues to be under concern in the TB control strategy in China.
authors.affiliation: National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
authors.forename: Shi-Ming
authors.initials: SM
authors.lastname: Cheng
authors.forename: Er-Yong
authors.initials: EY
authors.lastname: Liu
authors.forename: Xin
authors.initials: X
authors.lastname: DU
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D002681:China / Q000453:epidemiology; D003140:Communicable Disease Control / Q000706:statistics & numerical data*; D023801:Directly Observed Therapy / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care / Q000706:statistics & numerical data*; D015995:Prevalence; D012189:Retrospective Studies; D014397:Tuberculosis, Pulmonary / Q000453:epidemiology / Q000517:prevention & control*; D014944:World Health Organization