Table 4 Validity and completeness of outcomes in LHS administrative databases
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) |