Demographic data for index cases by drug resistance status.

Data are number (percent) unless otherwise indicated.1Drug-susceptible tuberculosis and MDRTB index cases were matched by sex and age.2Socio-economic status was derived from the Necesidades Basicas Insatisfechas score, a locally validated scoring system used as part of the Peruvian National Census. This score allows a distinction to be made between different levels of poverty within a shanty town.3Hospitalization due to present tuberculosis disease.4Mann–Whitney U test, otherwise two sample test of proportions with exact p-values.5LAM indicates Latin American Mediterranean. “Other Euro-American” includes strains from the S family and the X family and strains that were present in the SpolDB4 Database but had not been assigned a family yet.Demographic data for index cases by drug resistance status.