TABLE 4.

Results of the collaborative study validating the reproducibility of the analytical accuracy using primer set 139-141

Laboratory no.Inclusivity (%)Exclusivity (%)Positive predictivity (%)Negative predictivity (%)Analytical accuracy (%)Kappa indexa
11001001001001001.000
29410010092960.926
396979894960.927
41001001001001001.000
498929497950.903
6b94676594770.561
71001001001001001.000
81001001001001001.000
91001001001001001.000
109110010088950.889
111001001001001001.000
129610010094980.951
1394929492930.854
141001001001001001.000
158710010081920.826
161001001001001001.000
All97969796960.926
All but laboratory 697999996980.952
  • a Kappa values of <0.01 indicate no concordance, 0.1 to 0.4 indicate weak concordance, 0.41 to 0.60 indicate clear concordance, 0.61 to 0.80 indicate strong concordance, and 0.81 to 1.00 indicate nearly complete concordance.

  • b Laboratory 6 was excluded from the final statistical analysis due to a markedly lower Kappa index compared with those of the other laboratories.