TABLE 1.
Characteristics of enrolled patients presenting to the OCPHS TB Clinic and Mayo Clinic health care workers
| Characteristic by patient groupa | Data |
|---|---|
| Enrolled subjects with correctly processed WB samples | |
| Total no. | 161 |
| Age (median [range]) (yr) | 41 (18–79) |
| No. (%) of females | 89 (55) |
| Patients presenting to OCPHS TB Clinic | |
| No. enrolled | 42 |
| Age (median [range]) (yr) | 36 (18–79) |
| No. (%) of females | 20 (48) |
| Region of birth (no. [%]) | |
| Asia | 10 (23.8) |
| Africa and Middle East | 23 (54.8) |
| South America | 3 (7.1) |
| North America | 6 (14.3) |
| No. (%) BCG vaccinated | 13 (31) |
| TB status | |
| Active TB Dx | 3 (7.1) |
| LTBI, partial, or no Tx | 28 (66.7) |
| LTBI, Tx completed | 1 (2.4) |
| No LTBI | 10 (23.8) |
| Health care workers | |
| No. enrolled | 119 |
| Age (median [range]) (yr) | 41 (25–62) |
| No. (%) of females | 69 (58) |
| No. of HCWs with reactive TST ≥10 mm (% of total HCWs) | 19 (16) |
| BCG vaccinatedb | 5 (26.3) |
| Documented Tx Hx for LTBIb | 7 (36.8) |
| Unknown Tx Hx for LTBIb | 3 (15.8) |
| No LTBIb,c | 9 (47.4) |
a
WB, whole blood; TB, tuberculosis; BCG, bacille Calmette-Guerin; Dx, diagnosis; Tx, treatment; Hx, history; LTBI, latent tuberculosis infection.
b
Percentage calculated using the number of patients with reactive TST results as the denominator (n = 19).
c
A reactive TST result was considered false positive.