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. Author manuscript; available in PMC: 2015 Sep 1.
Published in final edited form as: J Am Coll Surg. 2014 Apr 18;219(3):407–415. doi: 10.1016/j.jamcollsurg.2014.01.064

Table 2.

Comparison of Results for NSQIP-Type Complications Gathered by NSQIP and the 3 Other Audit Methods*

Method All positive* False positive* All negative* False negative* False-positive rate False-negative rate Kappa value Mean kappa
All grade 1 NSQIP complications
 DC Summary 10 + 1+ 5 - - 61 - 4 - 1- 1+ 1/68 (1.4%) 5/16 (31.3%) 0.744 0.629
 Chart Review 10 + 1+ 5 + - 61 - 4 - 1- 1+ 6/68 (8.8%) 5/16 (31.3%) 0.585
 Prospective 10 + 1+ 5 + + 61 - 4 - 1+ 1- 7/68 (10.3%) 5/16 (31.3%) 0.558
 NSQIP 10 + 1- 5 - - 61- 4 + 1+ 1+ NA NA NA NA
All grade 2 NSQIP complications
 DC Summary 13 + 8 + 1+ 2 - 48 - 6 - 1- 5 - 9/59 (15.3%) 12/25 (48.0%) 0.381 0.485
 Chart Review 13 + 8 + 1+ 2 + 48 - 6 - 1- 5 + 11/59 (18.6%) 7/25 (28.0%) 0.510
 Prospective 13 + 8 + 1- 2 + 48 - 6 - 1+ 5 + 10/59 (16.9%) 6/25 (24.0%) 0.564
 NSQIP 13 + 8 - 1- 2 - 48 - 6 + 1+ 5 + NA NA NA NA
All grade 3 to 5 NSQIP complications
 DC Summary 12 + 1- 71 - NA 0/72 (0%) 0/12 (0%) 1.000 0.969
 Chart Review 12 + 1+ 71 - NA 1/72 (1.4%) 0/12 (0%) 0.953
 Prospective 12 + 1+ 71 - NA 1/72 (1.4%) 0/12 (0%) 0.953
 NSQIP 12 + 1- 71 - NA NA NA NA NA
*

Numbers indicate the number of patients with the particular pattern in those categories.