Table 4. Characteristics of refuted and confirmed patients pairsa.
Refuted patient pairs n=8 (%) | Confirmed patient pairs n=44 (%) | |
---|---|---|
Characteristics of young children | ||
Mean age, monthsb | 16 | 13 |
Female | 4 (50) | 23 (52) |
Race/ethnicity | ||
Black, non-Hispanic | 5 (63) | 20 (45) |
Hispanic | 3 (38) | 16 (36) |
Asian | 0 (0) | 5 (11) |
White, non-Hispanic | 0 (0) | 1 (2) |
Native American/Alaskan Native | 0 (0) | 2 (5) |
Foreign-born | 1 (13) | 0 (0) |
Source patient characteristics | ||
Mean age, yrs | 25 | 31 |
Female | 6 (75) | 18 (41) |
Race or ethnicity | ||
Black, non-Hispanic | 5 (63) | 20 (45) |
Hispanic | 3 (38) | 17 (39) |
Asian | 0 (0) | 5 (11) |
Native American or Alaskan Native | 0 (0) | 2 (5) |
Foreign-born | 3 (38) | 20 (45) |
Case patient characteristics | ||
Shared household | 5 (63) | 32 (73) |
Discordant drug susceptibilitiesc | 0 (0) | 3 (7) |
Different race/ethnicity | 0 (0) | 1 (2) |
aFor tuberculosis patients <5 years of age and their suspected source patients. Refuted patient pairs are suspected patient pairs with discordant genotypes; confirmed patient pairs are suspected patient pairs with concordant genotypes. bWilcoxon rank-sum test: p=0.03. cExcludes two patient pairs in which the children had drug-resistant Mycobacterium tuberculosis strains (streptomycin and ethambutol resistance, respectively), but susceptibility results were not done for the identified source patient.