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Table 3 Sensitivity analysis: Different cutoffs for “high-risk” tuberculosis population

From: Spatial distribution of people diagnosed with tuberculosis through routine and active case finding: a community-based study in Kampala, Uganda

Cutoff for percentage of population in high-risk
area
Actual percentage of population in high-risk area1Number of zones in the high-risk areaObserved percentage of TB cases in the high-risk area (95% CI)Expected (simulated) percentage of TB cases in the high-risk area (95% simulation interval)
5%7%124% (14–39%)19% (44–26%)
10%14%347% (32–62%)35% (28–44%)
15%16%451% (36–66%)38% (31–48%)
20%22%562% (47–75%)47% (39–58%)
25%27%671% (56–83%)55% (46–66%)
  1. 1 The actual percentage is higher than the cutoff percentage because the actual “high-risk” area consists of intact zones, added sequentially to the “high-risk” area until the cutoff is surpassed