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Table 2 Validation of postoperative complication coding in the administrative database. Sensitivity and specificity with 95% CI of administrative data in identifying postoperative complications stratified by complication group and severity (determined using Clavien Classification I-V)

From: Postoperative complications following colectomy for ulcerative colitis: A validation study

Complication group

Total

Sensitivity

Specificity

Any Complication

   

     0 vs ≥1

224

0.68 [0.62 – 0.74]

0.84 [0.79 – 0.87]

     0/Class I vs. Class II-V

154

0.78 [0.71 – 0.84]

0.78 [0.74 – 0.82]

     0/Class I-II vs. Class III-V

70

0.84 [0.74 – 0.92]

0.70 [0.66 – 0.74]

Gastrointestinal complications

   

     0 vs ≥1

108

0.56 [0.47 – 0.66]

0.89 [0.85 – 0.91]

     0/Class I vs. Class II-V

51

0.67 [0.52 – 0.79]

0.85 [0.81 – 0.88]

     0/Class I-II vs. Class III-V

23

0.78 [0.56 – 0.93]

0.82 [0.79 – 0.86]

Infections

   

     0 vs ≥1

78

0.59 [0.47 – 0.70]

0.96 [0.93 – 0.97]

     0/Class I vs. Class II-V

69

0.58 [0.45 – 0.70]

0.84 [0.92 – 0.96]

     0/Class I-II vs. Class III-V

29

0.66 [0.46 – 0.82]

0.91 [0.88 – 0.93]

Wounds

   

     0 vs ≥1

38

0.50 [0.33 – 0.67]

0.96 [0.94 – 0.98]

     0/Class I vs. Class II-V

31

0.48 [0.30 – 0.67]

0.96 [0.94 – 0.97]

     0/Class I-II vs. Class III-V

30

0.47 [0.28 – 0.66]

0.96 [0.93 – 0.97]

Renal and Endocrine complications

   

     0 vs ≥1

32

0.66 [0.47 – 0.81]

0.93 [0.91 – 0.95]

     0/Class I vs. Class II-V

27

0.74 [0.54 – 0.89]

0.93 [0.91 – 0.95]

     0/Class I-II vs. Class III-V

6

1.00 [0.54 – 1.00]

0.91 [0.88 – 0.93]

Cardiovascular disorders

   

     0 vs ≥1

54

0.67 [0.53 – 0.79]

0.97 [0.96 – 0.99]

     0/Class I vs. Class II-V

46

0.74 [0.59 – 0.86]

0.97 [0.95 – 0.98]

     0/Class I-II vs. Class III-V

18

0.89 [0.65 – 0.99]

0.94 [0.92 – 0.96]

Pulmonary complications

   

     0 vs ≥1

31

0.42 [0.25 – 0.61]

0.97 [0.95 – 0.98]

     0/Class I vs. Class II-V

19

0.53 [0.29 – 0.76]

0.96 [0.94 – 0.98]

     0/Class I-II vs. Class III-V

14

0.71 [0.42 – 0.92]

0.96 [0.95 – 0.98]

Neurological disorders

   

     0 vs ≥1

12

0.42 [0.15 – 0.72]

0.99 [0.98 – 1.00]

     0/Class I vs. Class II-V

6

0.67 [0.22 – 0.96]

0.99 [0.98 – 1.00]

     0/Class I-II vs. Class III-V

1

1.00 [0.03 – 1.00]

0.99 [0.97 – 0.99]

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BMC Gastroenterology

ISSN: 1471-230X

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