Table 4.
Concordant and discordant test results of twice tested animals and test agreement between initial and repeated test using Cohen’s Kappa Coefficient (n = 142).
| Initial and repeated test | CIT | CITz | DST10 | DST30 | DSTF | IGRA | SIT |
|---|---|---|---|---|---|---|---|
| Initial and repeated test result, Number positive (%) | |||||||
| Initial | 39 (27.5) | 75 (52.8) | 77 (54.2) | 83 (58.5) | 80 (56.3) | 58 (40.8) | 82 (57.7) |
| Repeated | 37 (26.1) | 69 (48.6) | 60 (42.3) | 67 (47.2) | 61 (43) | 55 (38.7) | 83 (58.5) |
| Concordant and discordant test result (Initial/Repeated), n (%) | |||||||
| +/+ | 26 (18) | 63 (44) | 50 (35) | 56 (39) | 51 (36) | 45 (32) | 72 (51) |
| +/− | 13 (9) | 12 (9) | 27 (19) | 27 (19) | 29 (20) | 12 (9) | 10 (7) |
| −/+ | 11 (8) | 6 (4) | 10 (7) | 11 (8) | 10 (7) | 10 (7) | 11 (8) |
| −/− | 92 (65) | 61 (43) | 55 (39) | 48 (34) | 52 (37) | 75 (52) | 49 (34) |
| Concordant | 118 (83) | 124 (87) | 105 (74) | 104 (73) | 103 (73) | 120 (84) | 121 (85) |
| Discordant | 24 (17) | 18 (13) | 37 (26) | 38 (27) | 39 (27) | 22 (16) | 21 (15) |
| Test agreement using Cohen’s Kappa Coefficient | |||||||
| Kappa coefficient (95% CI) | 0.57 (0.42–0.72) | 0.75 (0.64–0.86) | 0.49 (0.35–0.62) | 0.47 (0.33–0.61) | 0.46 (0.32–0.6) | 0.66 (0.54–0.79) | 0.7 (0.58–0.82) |
| Agreement | Moderate | Good | Moderate | Moderate | Moderate | Good | Good |