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Table 3 Overall assessments of agreement and comparability in calculated ISS and NISS amongst pairs of AIS datasets.

From: Development and validation of a complementary map to enhance the existing 1998 to 2008 Abbreviated Injury Scale map

Codesets being compared

AIS98

& AIS08

AIS08

& Map08

AIS98

& Map98

AIS08

& EMap08

AIS08 &

EMap08+F

ISS

NISS

ISS

NISS

ISS

NISS

ISS

NISS

ISS

NISS

Weighted kappa

0.74

0.82

0.85

0.92

0.91

0.97

0.97

0.97

0.97

0.97

95% CI

0.65-0.83

0.75-0.88

0.75-0.92

0.86-0.95

0.85-0.95

0.95-0.98

0.95-0.99

0.95-0.98

0.94-0.99

0.94-0.98

Wilcoxon test - z-score

-7.46

-7.98

-3.78

-2.53

-4.95

-4.08

0.32

0.50

0.09

1.44

p-value

<0.001*

<0.001*

<0.001*

0.012‡

<0.001*

<0.001*

0.751‡

0.621‡

0.929‡

0.149‡

  1. Weighted kappa values for agreement over chance between AIS dataset pairs are shown with 95% confidence intervals, as well as the results of Wilcoxon signed-rank tests for differences in overall population description between the datasets in each pair.
  2. * Significant differences between datasets using Holm-Bonferroni correction at overall 0.05 level.
  3. ‡ No significant differences between datasets using Holm-Bonferroni correction at overall 0.05 level.