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Table 3 Agreement between each co-morbidity measure of individual conditions. Cohen’s Kappa coefficient and 95 % confidence intervals for agreement estimations

From: Comparing co-morbidities in total joint arthroplasty patients using the RxRisk-V, Elixhauser, and Charlson Measures: a cross-sectional evaluation

 

Total hip arthroplasty

Total knee arthroplasty

 

RxRisk-V Elixhausera

RxRisk-V Charlsonb

Elixhauser Charlsonc

RxRisk-V Elixhausera

RxRisk-V Charlsonb

Elixhauser Charlsonc

 

ƙ (95 % CI)

ƙ (95 % CI)

ƙ (95 % CI)

ƙ (95 % CI)

ƙ (95 % CI)

ƙ (95 % CI)

Cancer

      

 Malignancies

-

0.07 (0.04-0.10)

-

-

0.06 (0.03-0.08)

-

 Metastatic cancer

 

-

1.00 (1.00-1.00)

 

-

1.00 (1.00-1.00)

Cardiovascular/blood

      

 Anticoagulation agents/coagulopathy

0.01 (0.00-0.01)

  

0.00 (0.00-0.01)

  

 Arrhythmias

0.35 (0.33-0.38)

-

-

0.34 (0.32-0.36)

-

-

 Congestive heart failure

0.26 (0.23-0.28)

0.26 (0.23-0.28)

1.00 (1.00-1.00)

0.18 (0.16-0.20)

0.18 (0.16-0.20)

1.0 (1.00-1.00)

 Hypertension (complicated and uncomplicated)

0.13 (0.11-0.14)

-

-

0.13 (0.11-0.14)

-

-

Peripheral vascular disease

-

-

1.00 (1.00-1.00)

-

-

1.00 (1.00-1.00)

Endocrine

      

 Diabetes (uncomplicated)

0.63 (0.60-0.65)

0.63 (0.60-0.65)

0.94 (0.93-0.96)

0.61 (0.59-0.63)

0.61 (0.59-0.63)

0.95 (0.95-0.96)

 Diabetes (complicated)

-

-

0.97 (0.96-0.98)

-

-

0.98 (0.97-0.98)

 Hypothyroidism

0.12 (0.09-0.15)

-

-

0.08 (0.06-0.10)

-

-

Gastrointestinal

      

 Liver disease (mild)

-

 

0.71 (0.56-0.85)

-

-

0.76 (0.67-0.86)

 Liver disease (severe) or failure

-

0.01 (0.00-0.02)

-

-

0.00 (0.00-0.00)

-

 Peptic ulcer disease

-

-

0.82 (0.76-0.88)

-

-

0.79 (0.74-0.85)

Muscuoskeletal/pain related

      

 Rheumatoid arthritis/collage vascular disorders

-

-

0.94 (0.92-0.97)

-

-

0.95 (0.94-0.97)

Neurologic

      

 Dementia

-

0.34 (0.27-0.41)

-

-

0.36 (0.28-4.43)

-

 Paralysis (or Paraplegia/Hemiplegia)

-

-

1.00 (1.00-1.00)

-

-

1.00 (1.00-1.00)

Psychological/behavioral

      

 Alcohol abuse/dependence

0.06 (0.00-0.12)

-

-

0.10 (0.05-0.16)

-

-

 Depression

0.07 (0.06-0.08)

-

 

0.06 (0.05-0.07)

-

 

 Psychotic illness/psychoses

0.05 (0.01-0.09)

-

 

0.04 (0.01-0.07)

-

 

Renal/urologic

      

 Renal disease/failure

0.11 (0.07-0.15)

0.11 (0.08-0.15)

0.94 (0.92-0.96)

0.07 (0.04-0.10)

0.07 (0.05-0.10)

0.95 (0.94-0.97)

Respiratory

      

 Chronic pulmonary disease

-

-

1.00 (1.00-1.00)

-

-

1.00 (1.00-1.00)

  1. aRxRisk-V and Elixhauser have ten conditions in common
  2. bRxRisk-V and Charlson have six conditions in common
  3. cElixhauser and Charlson have 12 conditions in common, six where the diagnoses codes are identical (only 11/5 are shown because no cases of HIV/AIDS were identified in this sample)
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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