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Fig 2. Functional status estimated by the Karnofsky performance score in 68 discharged patients with more than 10 days of intensive care unit stay after cardiac surgery after a mean follow-up of 1.9 years. The mean Karnofsky score was 79. In 65% of the patients the Karnofsky score was 80 or above, representing a capacity to perform normal activities without need for assistance.
