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Table 2 Distribution of TB diagnoses according to the position in the HDR, in “confirmed” or “not confirmed” TB cases

From: Evaluation of underreporting tuberculosis in Central Italy by means of record linkage

  No. TB code in HDR TB code in HDR  
   Primary diagnosis Secondary diagnosis  
Total 346 263 83 p < 0,005*
Confirmed 293 246 47  
Not confirmed 53 17 36  
  1. *by chi square.