Table 3.
Agreement between SMR01 and case note review recorded comorbidity
| |
Prevalence |
|
|
|
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Co-morbidity |
SMRO1 |
CNR |
Kappa* |
Sensitivity |
Specificity |
PPV |
NPV |
|||||||
| n | % | n | % | Value | Label | % | 95% CI | % | 95% CI | % | 95% CI | % | 95% CI | |
| Ischaemic heart disease |
1146 |
35.6 |
1277 |
39.7 |
0.63 |
Substantial |
72.8 |
(70.3-75.2) |
88.9 |
(87.4-90.2) |
81.2 |
(78.8-83.3) |
83.3 |
(81.6-84.8) |
| Hypertension |
928 |
28.8 |
1715 |
53.3 |
0.28 |
Fair |
42.4 |
(40.1-44.8) |
86.7 |
(84.9-88.3) |
78.4 |
(75.7-81.0) |
56.9 |
(54.9-58.9) |
| Cerebrovascular disease |
282 |
8.8 |
248 |
7.7 |
0.80 |
Substantial |
87.1 |
(82.4-90.7) |
97.8 |
(97.2-98.3) |
76.6 |
(71.3-81.2) |
98.9 |
(98.5-99.2) |
| Peripheral vascular |
250 |
7.8 |
379 |
11.8 |
0.39 |
Fair |
36.9 |
(32.2-41.9) |
96.1 |
(95.4-96.8) |
56.0 |
(49.8-62.0) |
92.0 |
(90.9-92.9) |
| Congestive cardiac failure |
511 |
15.9 |
546 |
17.0 |
0.45 |
Moderate |
52.4 |
(48.2-56.5) |
91.6 |
(90.5- 92.6) |
56.0 |
(51.6-60.2) |
90.4 |
(89.2-91.5) |
| Diabetes mellitus |
501 |
15.6 |
805 |
25.0 |
0.65 |
Substantial |
58.4 |
(54.9-61.7) |
98.7 |
(98.2-99.1) |
93.8 |
(91.4-95.6) |
87.7 |
(86.4-88.9) |
| Dementia |
91 |
2.8 |
187 |
5.8 |
0.38 |
Fair |
29.9 |
(23.8-36.9) |
98.8 |
(98.4-99.2) |
61.5 |
(51.3-70.9) |
95.8 |
(95.1-96.5) |
| Chronic obstructive pulmonary disease |
255 |
7.9 |
283 |
8.8 |
0.51 |
Moderate |
52.7 |
(46.8-58.4) |
96.4 |
(95.7-97.0) |
58.4 |
(52.3-64.3) |
95.5 |
(94.7-96.2) |
| Connective tissue disease |
140 |
4.3 |
154 |
4.8 |
0.54 |
Moderate |
53.9 |
(46.0-61.6) |
98.1 |
(97.6-98.6) |
59.3 |
(51.0. 67.1) |
97.7 |
(97.1-98.2) |
| Haematological malignancy |
39 |
1.2 |
78 |
2.4 |
0.57 |
Moderate |
43.6 |
(33.1 . 54.6) |
99.8 |
(99.6-99.9) |
87.2 |
(73.3-94.4) |
98.6 |
(98.1-99.0) |
| Non-haematological malignancy |
300 |
9.3 |
454 |
14.1 |
0.51 |
Moderate |
47.1 |
(42.6-51.7) |
96.9 |
(96.2-97.5) |
71.3 |
(66.0-76.2) |
91.8 |
(90.7-92.7) |
| Chronic liver disease |
37 |
1.1 |
33 |
1.0 |
0.51 |
Moderate |
54.5 |
(38.0-70.2) |
99.4 |
(99.1-99.6) |
48.6 |
(33.4-64.1) |
99.5 |
(99.2-99.7) |
| Current or ex-smoker | 21 | 0.7 | 1564 | 48.6 | 0.01 | Poor | 1.1 | (0.7-1.7) | 99.8 | (99.4-99.9) | 81.0 | (60.0-92.3) | 51.6 | (49.9-53.4) |
SMRO1. Scottish Morbidity Record 01; PPV, Positive Predictive Value; NPV, Negative Predictive Value; CI, Confidence Interval.
*Interpretation of kappa: Agreement poor if κ ≤ 0.20, fair if 0.21κ ≤ O.40, moderate if 0.41κ ≤ 0.60, substantial if 0.61 ≤ 0.80 and good if κ > 0.80.