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)
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]

Ma et al.

Ma et al. BMC Gastroenterology 2012 12:39   doi:10.1186/1471-230X-12-39

Open Data