Table 2 Distribution of respondents offering answers consistent and inconsistent with medical records in their self-reports on diabetes and hypertension and the test of consistency
Self-reports | |||||||
|---|---|---|---|---|---|---|---|
Diabetes | Hypertension | ||||||
Yes | No | Total | Yes | No | Total | ||
Medical records (Gold Standard) | Yes | 597 (82.5%) | 127 (17.5%) | 724 (100.0%) | 1416 (84.1%) | 267 (15.9%) | 1683 (100.0%) |
No | 106 (3.7%) | 2771 (96.3%) | 2877 (100.0%) | 320 (16.7%) | 1598 (83.3%) | 1918 (100.0%) | |
Sensitivity of self-report | 82.5% | 84.1% | |||||
Specificity of self-report | 96.3% | 83.3% | |||||
Overall consistency | 93.5% | 83.7% | |||||
The Kappa coefficient | 0.80 (0.77–0.82) | 0.67 (0.65–0.70) | |||||