Characteristic Healthy controls N = 262 PTB patients N = 162 LTI patients N = 109
Gender      
Male 148 97 69
Female 114 65 40
Ratio male/female 1.3 1.5 1.7
Mean age (years) 48 56 52
Range 18-65 23-76 27-63
Table 1: Main demographic data of patients and controls.