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Table 1 Model parameter value and ranges

From: Smear plus Detect-TB for a sensitive diagnosis of pulmonary tuberculosis: a cost-effectiveness analysis in an incarcerated population

Model assumptions
Discount rate (annual) (%) 0.03  
Time horizon Lifetime
Perspective Societal
Study characteristics
Smear positive cases 26  
Culture positive cases 51
Detect-TB positive cases 41
Smear and culture positive cases 53
Smear and Detect-TB positive cases 48
Variable Probability Value Range
Ambulatory TB prevalence 0.10 0.05 0.20
Hospitalization TB prevalence 0.30 0.25 0.35
Study TB prevalence 0.038 0.028 0.048
TB prevalence in RS (state in southern of Brazil) 0.047 0.037 0.057
SE smear 0.47 0.37 0.57
SE culture 0.93 0.83 0.99
SE Detect-TB 0.74 0.64 0.84
SE smear plus culture 0.96 0.86 0.99
SE smear plus Detect-TB 0.86 0.76 0.96