Skip to main content

Advertisement

Table 2 True-positive results a in settings of varying prevalence and tests of varying sensitivity

From: Implications of the impact of prevalence on test thresholds and outcomes: lessons from tuberculosis

Disease prevalence rate Number of true-positive results
Sensitivity
50% 60% 70% 80%
20% 100 120 140 160
40% 200 240 280 320
60% 300 360 420 480
80% 400 480 560 640
  1. a Predicted numbers based on a hypothetical population of 1,000 tested individuals.