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A
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(Score 0) Fully active, able to carry on all pre-disease performance without restriction.
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B
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(Score 1) Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature, e.g., light housework, office work.
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C
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(Score 2) Ambulatory and capable of all self-care but unable to carry out any work activities. Up and about more than 50% of waking hours.
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D
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(Score 3) Capable of only limited self-care, confined to bed or chair more than 50% of waking hours.
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E
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(Score 4) Completely disabled. Cannot carry on any self-care. Totally confined to bed or chair.
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Z
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Unknown
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