Table 2 Agreement for presence of selected comorbidities between medical chart and administrative data
Comorbidity | Medical chart data n, (%) | Administrative data n, (%) | Percentage agreement %, (95% CI) | κ statistic (95% CI) | |
|---|---|---|---|---|---|
Data available for all six study sites (n = 201) | Myocardial infarction Congestive heart failure | 6 (3.0) | 0 (0) | 97 (95–99) | 0 (0–0) |
Diabetes without chronic complications Diabetes with chronic complications | 21 (10.5) | 17 (8.5) | 94 (90–97) | 0.61 (0.42–0.81) | |
Mild liver disease Moderate or severe liver disease | 3 (1.5) | 1 (0) | 99 (97–100) | 0 (0–0) | |
Any malignancya Metastatic solid tumour | 201 (100) | 201 (100) | NC | NC | |
Rheumatic diseaseb | 4 (2.0) | (0) | 98 (96–100) | (0–0) | |
Ulcer or stomach disease | 3 (1.5) | 0 (0) | 99 (97–100) | 0 (0–0) | |
Renal disease | 4 (2.0) | 1 (0.5) | 98 (95–100) | −0.01 (−0.02–0.00) | |
Chronic pulmonary disease | 26 (12.9) | 0 (0) | 88 (83–92) | 0 (0–0) | |
Hemiplegia | 0 (0) | 0 (0) | NC | NC | |
AIDS/HIV | 0 (0) | 0 (0) | NC | NC | |
Peripheral vascular disease | 1 (0.5) | 0 (0) | 100 (99–100) | 0 (0–0) | |
Dementia | 0 (0) | 0 (0) | NC | NC | |
Cerebrovascular disease | 5 (2.5) | 0 (0) | 98 (96–100) | 0 (0–0) | |
Data available for all sites except site 1 (n = 172) | High blood pressure | 81 (47.1) | 72 (41.9) | 87 (81–92) | 0.73 (0.63–0.83) |
Anaemia or other blood disease | 7 (4.1) | 9 (5.2) | 93 (89–97) | 0.21 (−0.08–0.51) | |
Depression | 6 (3.5) | 0 (0) | 97 (94–99) | 0 (0–0) | |
Back pain | 7 (4.1) | 0 (0) | 96 (93–99) | 0 (0–0) | |
Osteoarthritis/ degenerative arthritis | 17 (9.9) | 9 (5.2) | 93 (89–97) | 0.50 (0.26–0.75) | |
Total count | 392 | 310 |