Demographic and clinical data of the HD patients ^a.

aAfter exclusion of the patients with a TB history; one patient from the low TB prevalence group was further. excluded for undetermined results obtained in the IGRAs. bMann-Whitney U or Chi-square test. caOR (95%CI) : Adjusted Odds ratio and 95% confidence interval. dMedian (interquartile range). eTuberculosis risk factors: end stage renal disease, malnutrition, diabetes, HIV infection, AIDS, tobacco addiction, chronic obstructive pulmonary disease. Final multivariate model: Hosmer-Lemeshow goodness of fit test, p = 0.11.