Association of scaling up a CI with the number of close, casual and community contacts evaluated and detected with LTBI found in the 14 CIs.

†Tested concurrently with the previous group of contacts.aScaled up according to guidelines because the decision was based on the prevalence of infection among the close contacts.bScaled up according to guidelines because the PHN considered the number of close contacts too small to accurately assess the prevalence of infection.cCorrectly not scaled up because decision was based on prevalence of infection among the close contacts.dIncorrectly scaled up to casual contacts since no infection was found among the close contacts.eIncorrectly scaled up since casual contacts were tested concurrently with close contacts.fIncorrectly scaled up since casual contact was considered a ‘test case’.gIncorrectly scaled up since casual contacts were anxious.hScaled up to community contacts according to guidelines because the decision was based on the prevalence of infection among the casual contacts.iIncorrectly scaled up to community contacts since no infection was found among the casual contacts.jIncorrectly not scaled up to community contacts although prevalence of infection among casual contacts was high.kNot scaled up to community contacts because according to PHN there was no well defined group of community contacts.