Subjects with both Follow-up Survey and Health Factor Data (n = 1713) | Subjects with only one data source | |||||||
---|---|---|---|---|---|---|---|---|
% Quitter Follow-up Survey | % Quitter Health Factor | Sensitivity (95% CI) | Specificity (95% CI) | Kappa (95%CI) | % Agreement | Survey (n = 1594) | Health Factor (n = 790) | |
Quitter n/ntot (%) | Quitter n/ntot (%) | |||||||
Age ≥ 65 (n = 910) | 11.9% | 11.7% | 59.5 (30.0, 89.0) | 94.3 (79.7, 100.0) | 0.53 (0.39, 0.66) | 90.4% | 56/402 (13.9%) | 17/134 (12.7%) |
Chronic Lower respiratory disease (n = 782) | 9.3% | 11.0% | 54.5 (23.2, 85.9) | 93.5 (78.7, 100.0) | 0.44 (0.29, 0.60) | 89.8% | 39/294 (13.3%) | 18/134 (13.4%) |
Patients with any mental illness (n = 1928) | 10.1% | 9.9% | 53.8 (33.8, 73.7) | 95.1 (85.0, 100.0) | 0.49 (0.39, 0.59) | 90.9% | 91/736 (12.4%) | 56/403 (13.9%) |
Patients hospitalized in the past year (n = 434) | 14.0% | 10.1% | 36.4 (6.9, 65.8) | 93.4 (72.9, 100.0) | 0.32 (0.11–0.52) | 86.7% | 17/142 (12.0%) | 11/104 (10.6%) |