Skip to main content

Table 2 Descriptive and diagnostic characteristics of administrative data algorithms

From: Diagnostic accuracy of administrative data algorithms in the diagnosis of osteoarthritis: a systematic review

Algorithm restrictiveness Refence standard Study Algorithm definition Years spanned by admin data Sensitivity   Specificity   Positive likelihood ratio Calculated PPV at 10 % prevalence Calculated PPV at 25 % prevalence Calculated PPV at 50 % prevalence
       95 % CI   95 % CI     
Restrictive   Lix 2006 [28] 1 hospitalization OR 2 physician visits OR 1 physician visit and 2 Rx ICD-9-CM diagnostic codes in 5 years 5 0.43 0.39–0.47 0.91 0.90–0.92 4.63 0.35 0.61 0.83
  Lix 2006 [28] 1 hospitalization OR 2 physician visits ICD–9–CM diagnostic codes in 5 years 5 0.33 0.29–0.37 0.94 0.93–0.95 5.47 0.38 0.65 0.85
  Lix 2006 [28] 2 physician visits ICD–9–CM diagnostic codes in 5 years 5 0.32 0.28–0.35 0.94 0.94–0.95 5.54   0.64 0.84
Self-report Rahman 2008 [29] 2 physician visits in 2 years OR 1 hospitalization ICD-9-CM diagnostic code 2b 0.29   0.89   2.64 0.23 0.47 0.73
ACR criteria Rahman 2008 [29] 2 physician visits in 2 years OR 1 hospitalization ICD-9-CM diagnostic code 2b 0.31   0.89   2.82 0.24 0.48 0.74
Less restrictive Medical Record Review Fowles 1995 [23] 1 physician visit ICD-9-CM diagnostic code 1 0.32 0.26–0.40 0.95 0.94–0.96 6.40 0.42 0.68 0.86
Kadhim–Saleh 2013a [24] 1 ICD-9-CM diagnostic code OR problems list in EMR unspecified 0.45 0.35–0.55 1 (0.97δ) 0.97–1.00 15.00 0.63 0.83 0.94
Coleman 2015a [27] 1 ICD-9-CM diagnostic code OR problems list in EMR unspecified 0.63 0.57–0.68 0.94 0.88–0.97 10.50 0.54 0.78 0.91
Williamson 2014a [26] 1 ICD-9-CM diagnostic code OR problems list in EMR unspecified 0.78 0.75–0.81 0.95 0.94–0.96 15.25 0.63 0.84 0.94
Self-report Lix 2006 [28] 1 physician visit ICD-9-CM diagnostic code in 5 years 5 0.50 0.46–0.54 0.89 0.88–0.90 4.42 0.34 0.60 0.82
ACR criteria Rahman 2008 [29] 1 physician visit or 1 hospitalization ICD-9-CM diagnostic code 2b 0.61   0.70   2.03 0.18 0.40 0.67
Harrold 2000 [25] 1 inpatient or outpatient ICD-9-CM diagnostic code 3 0.83 0.78–0.87 0.60 0.55–0.66 2.10 0.19 0.41 0.67
Rahman 2008 [29] 1 physician visit or 1 hospitalization ICD-9-CM diagnostic code 2b 0.58   0.66   1.71 0.16 0.36 0.63
  1. aCase definitions are developed in EMR based database
  2. bVisit codes were restricted to 2 years and timespan of hospitalization code was unspecified. Rahman 2008 did not report 95 % CI
  3. δLower confidence interval of specificity (instead of 1) was used to calculate LR+s and PPVs