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The clinical performance of 2 TB antibody test kits (positive rate, %)
| Group | Smear | Culture | Kit B | Kit H |
|---|---|---|---|---|
| Pulmonary TB group (n = 1752) | 39.8(543/1365) | 48.6(372/765)* | 45.8(802/1752) | 25.2(442/1752) |
| Extra-pulmonary TB group (n = 505) | 3.4(6/178) | 5.8(4/69) | 35.4(179/505)*# | 11.3(57/505)* |
| Old pulmonary TB group (n = 87) | 0(0/64) | 0(0/30) | 32.2(28/87) | 9.2(8/87) |
| Non-TB group (n = 205) | 0(0/121) | 0(0/56) | 21.5(44/205) | 2.4(5/205) |
*P < 0.05 compared with smear; #P < 0.05 compared with culture
