QuantiFERON-TB Gold plus testing for the detection of LTBI among health care workers in major TB hospitals of the Northern Kyrgyz Republic

Table 3 Follow-up QuantiFERON-TB Gold plus tests of HCW indicating stable and instable test results for HCW

Status^a	1st ≥ 2nd QFT	HCW with status	HCW with 3rd QFT performed	3rd QFT results
Status^a	1st ≥ 2nd QFT	HCW with status	HCW with 3rd QFT performed	Positive n (%)	Negative n (%)
P	Positive ≥ positive	17	13	13^b (100%)	0
N	Negative ≥ negative	12	6	0	6^b (100%)
C	Negative ≥ positive	15	10	9^b (90%)	1
R	Positive ≥ negative	5	1	1	0
Total		49	30	23	7

Stable status was assigned when the 3rd test matched the 2nd, and instable status when it did not
^aPositive (P); Negative (N); Converter (C); Reverter (R)
^bStable status based on 3rd QFT test

ISSN: 1471-2334