Total knee arthroplasty in carefully selected patients aged 80 years or older

Table 3 Prevalence of comorbidities

Comorbidity	≥80 years group	Control group	pvalue
DM	19	20	0.973
Cardiac
Hypertension	52	53	0.82
CAD	7	5	0.497
CHF	2	1	0.614
Arrhythmia	6	3	0.32
Liver cirrhosis	0	2	0.497
Renal insufficiency	4	4	0.951
Gout	2	3	0.684
COPD	5	7	0.598
Adrenocortical insufficiency	7	4	0.311
Peptic ulcer	13	11	0.575
Coagulopathy	0	2	0.497
Anemia^a	17	14	0.459
Hemoglobin (g/dL), mean (SD; range)	12.7 (1.7; 8.8 ~ 16.7)	13.2 (1.4; 9.8 ~ 16.9)	0.115
Hematocrit, mean (SD; range)	39.1 (4.0; 30.5 ~ 48.1)	40.2 (3.9; 30.3 ~ 49.9)	0.082

DM diabetes mellitus, CAD coronary artery disease, CHF congestive heart failure, CVA cerebral vascular accident, COPD chronic obstructive pulmonary disease, SD standard deviation. ^aHb < 12 g/dL.

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