Skip to main content

Table 4 Test agreement of FEC, KK, STS and APC techniques to detect STHs and S. mansoni against the gold standard among school children in ANRS, from October to December, 2019. (n = 520)

From: Evaluating the performance of diagnostic methods for soil transmitted helminths in the Amhara National Regional State, Northwest Ethiopia

  Combined as a “Gold” standard
Methods Species Result Pos (N) Neg (N) NOA NAEC Kappa-value; (p-value) 95% CI of kappa
N (%) N (%)
FEC AL Pos 13 0 493 (94.81) 469 (90.19) 0.471 (0.001) 0.306–0.636
Neg 27 480
HW Pos 113 0 457 (87.88) 307 (59.5) 0.704 (0.001) 0.638–0.769
Neg 63 344
TT Pos 3 0 519 (99.81) 513 (98.66) 0.856 (0.001) 0.578–1.00
Neg 1 516
STHs Pos 127 0 435 (83.65) 284.6 (54.72) 0.639 (0.001) 0.574–0.704
Neg 85 308
KK AL Pos 20 0 500 (96.15) 463.1 (89.05) 0.649 (0.001) 0.507–0.790
Neg 20 480
HW Pos 98 0 442 (85.00) 312.3 (60.07) 0.624 (0.001) 0.553–0.696
Neg 78 344
TT Pos 3 0 519 (99.81) 513 (98.66) 0.856 (0.001) 0.578–1.00
Neg 1 516
STHs Pos 117 0 425 (81.73) 286.4 (55.08) 0.593 (0.001) 0.526–0.661
Neg 95 308
STS AL Pos 32 0 512 (98.46) 452.9 (87.10) 0.881 (0.001) 0.799–0.962
Neg 8 480
HW Pos 137 0 481 (92.50) 299.7 (57.64) 0.823 (0.001) 0.770–0.876)
Neg 39 344
TT Pos 4 0 520 (100) 512 (98.47) 1.00 (0.001) 1.00–1.00
Neg 0 516
STHs Pos 168 0 476 (91.54) 277 (53.27) 0.819 (0.001) 0.769–0.869
Neg 44 308
APC HW Pos 152 0 496 (95.38) 294.9 (56.71) 0.893 (0.001) 0.852–0.935
Neg 24 344
  1. Note: AL A. lumbricoides, HW Hookworm, TT T. trichiura, NOA Number of observed agreements, NAEC Number of agreements expected by chance, CI confidence interval