Table 2 Sensitivity and specificity of patient-reported chronic diseases relative to chronic diseases derived from administrative data (1-year look-back) (N = 676,428)
Chronic disease | Patient-reported n (%) | Administrative data n (%) | Prevalence in either patient-reported or administrative data, n (%) | Sensitivity (%) (95% CI) | Specificity (%) (95% CI) | Kappa (κ) (95% CI) | |||
|---|---|---|---|---|---|---|---|---|---|
Both | Administrative only | Patient-reported only | Neither | ||||||
Heart disease | 67,425 | 122,219 | 56,736 | 65,460 | 10,689 | 543,543 | 46. 4 | 98.1 | 0.54 |
(9.97) | (18.1) | (8.39) | (9.68) | (1.58) | (80.4) | (46.2, 46.7) | (98.0, 98.1) | (0.54, 0.54) | |
High blood pressure | 282,785 | 335,958 | 249,608 | 86,350 | 33,177 | 307,293 | 74.3 | 90.3 | 0.65 |
(41.8) | (49.7) | (36.9) | (12.8) | (4.90) | (45.4) | (74.1, 74.4) | (90.2, 90.4) | (0.64, 0.65) | |
Stroke | 11,126 | 7348 | 2367 | 4981 | 8759 | 660,321 | 32.2 | 98.7 | 0.25 |
(1.64) | (1.09) | (0.35) | (0.74) | (1.29) | (97.6) | (31.1, 33.3) | (98.7, 98.7) | (0.24, 0.25) | |
Leg pain due to poor circulation | 48,298 | 10,917 | 2855 | 8063 | 45,444 | 620,067 | 26.1 | 93.2 | 0.07 |
(7.14) | (1.61) | (0.42) | (1.19) | (6.72) | (91.7) | (25.3, 27.0) | (93.1, 93.2) | (0.07, 0.07) | |
Lung disease | 55,717 | 100,260 | 46,876 | 53,384 | 8841 | 567,327 | 46.8 | 98.5 | 0.55 |
(8.24) | (14.8) | (6.93) | (7.89) | (1.31) | (83.9) | (46.4, 47.1) | (98.4, 98.5) | (0.55, 0.56) | |
Diabetes | 75,998 | 78,816 | 68,952 | 9864 | 7046 | 590,566 | 87.5 | 98.8 | 0.88 |
(11.2) | (11.7) | (10.2) | (1.46) | (1.04) | (87.3) | (87.3, 87.7) | (98.8, 98.8) | (0.87, 0.88) | |
Kidney disease | 12, 435 | 36,823 | 6910 | 29,913 | 5542 | 634,080 | 18.8 | 99.1 | 0.26 |
(1.84) | (5.44) | (1.02) | (4.42) | (0.82) | (93.7) | (18.4, 19.2) | (99.1, 99.2) | (0.26, 0.26) | |
Diseases of the nervous system | 5840 | 19,550 | 4092 | 15,458 | 1748 | 655,130 | 20.9 | 99.7 | 0.31 |
(0.86) | (2.89) | (0.60) | (2.29) | (0.26) | (96.9) | (20.4, 21.5) | (99.7, 99.7) | (0.31, 0.32) | |
Liver disease | 3585 | 4120 | 1412 | 2708 | 2173 | 670,135 | 34.3 | 99.7 | 0.36 |
(0.53) | (0.61) | (0.21) | (0.40) | (0.32) | (99.1) | (32.8, 35.7) | (99.7, 99.7) | (0.36, 0.37) | |
Cancer | 32,384 | 12,710 | 8740 | 3970 | 23,644 | 640,074 | 68.8 | 96.4 | 0.37 |
(4.79) | (1.88) | (1.29) | (0.59) | (3.50) | (94.6) | (68.0, 69.6) | (96.4, 96.5) | (0.37, 0.37) | |
Depression | 61,589 | 29,923 | 18,263 | 11,660 | 43,326 | 603,179 | 61.0 | 93.3 | 0.36 |
(9.11) | (4.42) | (2.70) | (1.72) | (6.41) | (89.2) | (60.5 61.6) | (93.2, 93.4) | (0.36, 0.36) | |