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Table 3 Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of comorbidities (n = 3471)

From: A comparison of comorbidities obtained from hospital administrative data and medical charts in older patients with pneumonia

Comorbidities Sensitivity Specificity Positive Predictive Value Negative Predictive Value
  % 95% CI % 95% CI % 95% CI % 95% CI
Diabetes, complicated 80.3 74.2 - 85.5 97.2 96.5 - 97.7 63.7 57.5 - 69.6 98.8 98.3 - 99.1
Diabetes, uncomplicated 80.1 77.5 - 82.6 95.9 95.0 - 96.6 88.7 86.4 - 90.7 92.3 91.2 - 93.3
Metastatic cancer 70.7 61.5 - 78.8 99.1 98.7 - 99.4 73.2 64.0 - 78.8 99.0 98.6 - 99.3
Coagulopathy 60.2 50.8 - 69.1 94.0 93.2 - 94.8 26.2 21.1 - 31.9 98.5 98.1 - 98.9
Hypertension 54.3 52.1 - 56.5 95.2 94.0 - 96.3 94.4 92.9 - 95.6 58.6 56.5 - 60.6
Chronic pulmonary disease 52.8 48.5 - 57.0 95.8 95.1 - 96.5 71.0 66.4 - 75.3 91.3 90.3 - 92.3
Lymphoma 50.0 27.2 - 72.8 99.8 99.6 - 99.9 58.8 32.9 - 81.6 99.7 99.5 - 99.9
Deficiency anemias 49.2 44.6 - 53.8 84.3 82.9 - 85.6 33.1 29.6 - 36.7 91.3 90.2 - 92.3
Alcohol abuse 45.5 28.1 - 63.7 99.8 99.5 - 99.9 65.2 42.7 - 83.6 99.5 99.2 - 99.7
Fluid and electrolyte disorders 41.8 38.7 - 45.1 87.4 86.1 - 88.7 55.3 51.6 - 59.0 80.1 78.6 - 81.6
Weight loss 38.9 17.3 - 64.3 97.8 97.3 - 98.3 8.5 3.5 - 16.8 99.7 99.4 - 99.8
Congestive heart failure 35.4 31.1 - 39.9 97.1 96.5 - 97.7 65.9 59.7 - 71.7 90.6 89.5 - 91.6
Peripheral vascular disorders 34.2 27.6 - 41.2 99.2 98.8 - 99.5 72.3 62.2 - 81.1 96.1 95.4 - 96.8
Liver disease 33.9 25.2 - 43.6 99.4 99.1 - 99.6 64.9 51.1 - 77.1 97.9 97.4 - 98.4
Blood loss anemia 33.3 0.8 - 90.6 98.4 97.9 - 98.8 1.8 0.0 - 9.4 99.9 99.8 - >99.9
Cardiac arrhythmias 29.0 25.1 - 33.3 97.3 96.7 - 97.9 64.0 57.3 - 70.3 89.3 88.2 - 90.4
Solid tumor without metastasis 28.7 24.1 - 33.6 96.9 96.2 - 97.5 52.0 44.8 - 59.1 92.1 91.1 - 93.0
Other neurological disorders 24.7 20.6 - 29.0 98.8 98.3 - 99.1 73.9 65.9 - 80.9 90.4 89.3 - 91.3
Rheumatoid Arthritis/Collagen vascular disease 23.3 11.8 - 38.6 99.9 99.8 - >99.9 83.3 51.6 - 97.9 99.1 98.7 - 99.3
Hypothyroidism 22.9 15.7 - 31.5 99.6 99.3 - 99.8 67.5 50.9 - 81.4 97.4 96.8 - 97.9
Valvular disease 15.3 8.8 - 24.0 99.3 99.0 - 99.6 39.5 24.0 - 56.6 97.6 97.0 - 98.1
Pulmonary circulation disorders 13.6 5.2 - 27.4 99.7 99.5 - 99.9 37.5 15.2 - 64.6 98.9 98.5 - 99.2
Psychoses 8.3 3.6 - 15.6 99.9 99.7 - >99.9 61.5 31.6 - 86.1 97.4 96.8 - 97.9
Paralysis 6.3 0.2 - 30.2 96.3 95.6 - 96.9 0.8 0.0 - 4.3 99.6 99.3 - 99.8
Depression 5.0 2.9 - 8.0 99.5 99.1 - 99.7 48.5 30.8 - 66.5 91.2 90.2 - 92.1
Renal failure 3.8 2.2 - 6.0 99.8 99.5 - 99.9 70.8 48.9 - 87.4 87.5 86.4 - 88.6
Peptic ulcer disease 2.9 0.9 - 6.6 99.7 99.4 - 99.8 31.3 11.0 - 58.7 95.1 94.3 - 95.8