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Table 2 Parameters considered in base case analysis and range for selected parameter estimates included in sensitivity analysis

From: Initial impact and cost of a nationwide population screening campaign for diabetes in Brazil: A follow up study

Parameters Base Case Estimate Range
Proportion of population ≥ 40 years who participated in the screening program 73% -
Percentage of tests in screenees who reported to be under treatment for diabetes prior to screening 5.4% 4.8 – 6.1a
Percentage of subjects in fasting state when screenedb 46.7% 30 – 50%c
Percentage of positive screening testsd 16.4% -
Percentage of positive screenees who reported having diabetes diagnosis prior to the screening programe 16% 14 – 18.1%a
Percentage of positive screenees who returned for confirmatory testing 37.1% 0 – 100%c
Percentage of positive screenees who were diagnosed as having diabetes mellitus 10.1% -
Percentage of positive screenees diagnosed with diabetes and incorporated into the healthcare system 9.4% -
Additional local costs 0% 10 – 25%f
Estimated labor costs US$ 5.99 million US$ 4.65 – 8.98 million
Percentage of positive screenees who returned for confirmatory testing in the public system (as opposed to the private health sector) 100% 75 – 25%c
  1. National Campaign to Detect Diabetes Mellitus. Brazil, 2001.
  2. a Range corresponds to the 95% confidence interval of each estimate from the probabilistic sample.
  3. b Fasting was defined as absence of food ingestion 4 hours prior to capillary glucose test.
  4. c Range corresponds to an arbitrary estimate of the authors.
  5. d Fasting glucose ≥ 5.6 mmol/l or a casual glucose ≥ 7.8 mmol/l.
  6. e These subjects knew their previous diabetes diagnosis; however, they had not provided that information when asked about it during screening program.
  7. f Range expressed as an additional percentage of national costs.