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Table 4 Validity and completeness of outcomes in LHS administrative databases

From: A feasibility study to assess the validity of administrative data sources and self-reported information of breast cancer survivors

Outcome No. of patients Reference Standard Incidence % Proportion correct % Kappa (95 % CI) PPV (95 % CI) NPV (95 % CI) Completeness % (proportion)
Cardiovascular disease 119 Medical record 20.2 98.3 0.95 (0.88-1) 95.8 (79.8-99.3) 99 (94.3-99.8) 100 (119/119)
 Ischemic heart disease 119 Medical record 15.1 98.3 0.93 (0.84-1) 94.4 (74.2-99) 99 (94.6-99.8) 100 (119/119)
 Congestive heart failure 119 Medical record 2.5 100 1 100 (43.9-100) 100 (96.8-100) 100 (119/119)
 Conduction disorders and cardiac dysrhythmias 119 Medical record 8.4 99.2 0.94 (0.83-1) 100 (70.1-100) 99.1 (95–99.8) 100 (119/119)
 Stroke 119 Medical record 7.6 97.5 0.79 (0.55-1) 100 (61–100) 97.4 (92.5-99.1) 100 (119/119)
Fractures 119 Medical record 6.7 98.3 0.85 (0.64-1) 100 (61–100) 98.2 (93.8-99.5) 100 (119/119)
Osteoporosis 119 Medical record 25.2 98.3 0.96 (0.90-1) 93.8 (79.9-98.3) 100 (95.8-100) 100 (119/119)
Diabetes 119 Medical record 15.1 99.2 0.97 (0.91-1) 94.8 (75.4-99.1) 100 (96.3-100) 100 (119/119)
Chronic pain 67 SF-36 68.7a 94 0.85 (0.72-0.99) 92 (81.2-96.9) 100 (81.6-100) 100 (67/67)
  1. Abbreviations: PPV, positive predictive value; NPV, negative predictive value; CI, confidence interval; SF-36, 36-item short form
  2. a For chronic pain, the effect measure is prevalence