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Table 2 Inter-observer agreement for the conventional and modified Neer classifications

From: Reproducibility of the modified Neer classification defining displacement with respect to the humeral head fragment for proximal humeral fractures

Observer

Radiographs

CT scans

 

Conventional

Modified

Conventional

Modified

1 + 2

0.385 (0.277–0.493)

0.660 (0.564–0.756)

0.530 (0.425–0.634)

0.700 (0.608–0.792)

1 + 3

0.465 (0.351–0.579)

0.606 (0.502–0.710)

0.513 (0.403–0.623)

0.645 (0.549–0.741)

1 + 4

0.351 (0.237–0.465)

0.721 (0.631–0.811)

0.455 (0.343–0.567)

0.805 (0.727–0.883)

1 + 5

0.405 (0.291–0.519)

0.492 (0.386–0.598)

0.156 (0.062–0.250)

0.452 (0.348–0.556)

1 + 6

0.335 (0.219–0.451)

0.495 (0.385–0.605)

0.250 (0.140–0.360)

0.591 (0.487–0.695)

2 + 3

0.414 (0.300–0.528)

0.516 (0.408–0.624)

0.581 (0.471–0.691)

0.614 (0.510–0.718)

2 + 4

0.370 (0.252–0.488)

0.576 (0.470–0.682)

0.499 (0.383–0.615)

0.689 (0.595–0.783)

2 + 5

0.334 (0.222–0.446)

0.402 (0.296–0.508)

0.255 (0.149–0.361)

0.339 (0.231–0.447)

2 + 6

0.395 (0.279–0.511)

0.424 (0.312–0.536)

0.357 (0.239–0.475)

0.586 (0.480–0.692)

3 + 4

0.444 (0.328–0.560)

0.609 (0.507–0.711)

0.561 (0.451–0.671)

0.621 (0.519–0.723)

3 + 5

0.419 (0.305–0.533)

0.464 (0.360–0.568)

0.232 (0.128–0.336)

0.456 (0.350–0.562)

3 + 6

0.459 (0.347–0.571)

0.475 (0.361–0.589)

0.449 (0.333–0.565)

0.477 (0.361–0.593)

4 + 5

0.297 (0.179–0.415)

0.492 (0.388–0.596)

0.292 (0.184–0.400)

0.460 (0.352–0.568)

4 + 6

0.491 (0.375–0.607)

0.471 (0.357–0.585)

0.400 (0.277–0.523)

0.611 (0.505–0.717)

5 + 6

0.342 (0.228–0.456)

0.353 (0.247–0.459)

0.385 (0.279–0.491)

0.362 (0.252–0.472)

Mean ± SD

0.398 ± 0.056

0.517 ± 0.100

0.394 ± 0.133

0.561 ± 0.131

P value

P = .001

 

P < .001

 
  1. SD standard deviation