Table 5

Measuring agreement between MCT20 and SIII z-score (all available pairs for each of the steps)

StepMCT20 SIII z-score≥1.96Agreement
Resultn (%)Negative
n (%)
Positive
n (%)
P value*
Exact McNemar’s test
Kappa† coefficient95% CI for kappaP value
Exact test
NaClNegative106 (100)85 (88.54)11 (11.45)
Positive0 (0.00)
Prov 1Negative101 (95.28)66 (72.52)25 (27.47)<0.00010.1442−0.0045 to 0.29290.02444
Positive5 (4.716)0 (0)3 (100)
Prov 2Negative99 (98.01)71 (75.53)23 (24.46)<0.00010.04−0.0806 to 0.16060.9999
Positive2 (1.980)1 (50)1 (50)
Prov 3Negative84 (84.84)55 (67.90)26 (32.09)<0.00010.23840.0607 to 0.41600.0074
Positive15 (15.15)4 (28.57)10 (71.42)
Prov 4Negative69 (80.23)47 (71.21)19 (28.78)<0.00010.50330.3331 to 0.6735<0.0001
Positive17 (19.76)0 (0)17 (100)
Prov 5Negative61 (88.40)41 (68.33)19 (31.66)<0.00010.28270.0853 to 0.48010.0039
Positive8 (11.59)1 (12.5)7 (87.5)
Prov 6Negative55 (90.16)33 (66)17 (34)0.00070.1106−0.0954 to 0.316610.34150
Positive6 (9.836)2 (40)3 (60)
  • *If p<0.05 then ‘no agreement’.

  • †Kappa<0 then ‘no-agreement’; 0<Kappa≤0.20 slight agreement; 0.20<Kappa≤0.40 fair agreement; 0.40<Kappa≤0.60 moderate agreement; 0.60<Kappa≤0.80 substantial agreement; 0.80<Kappa≤1.00 almost perfect agreement.