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Table 1 Characteristics of the study population and patient diagnostic rate in the Central Highlands in 2003

From: Low tuberculosis notification in mountainous Vietnam is not due to low case detection: a cross-sectional survey

  Province Total
  Dac Lac Gia Lai Kon Tum  
Altitude (meter above sea level) 500–800 [24] 800–900 [25] 550–700 [26]  
Survey     
   Population 27,908 23,511 17,527 68,946
   Prolonged cough 352 507 439 1,298
   % cough* 1.7 (0.8–2.5) 2.5 (1.8–3.2) 2.9 (2.1–3.7) 2.0 (1.8–2.2)
   Number of new smear positive tuberculosis cases 4 5 7 16
   Prevalence* (/100,000 population) (95%CI) 24 (1–48) 31 (18–45) 46 (1–112) 27 (11–44)
Notification     
   Population (≥ 15 years) 1,249,057 670,735 213,339 2,133,131
   Number of notified new smear- positive tuberculosis cases 515 266 153 934
   Notification rate (≥ 15 years) (/100,000 population) 41 40 72 44
Patient diagnostic rate 1.7 (0.85–41) 1.3 (0.88–2.2) 1.6 (0.64–72) 1.6 (1.0–4.0)
  1. * weighing inversely proportional to the individual sampling probability