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This is one of the most frequently used scales for assessing the state of fitness of patients with cancer. This scale consists of six degrees, from 0 to 5, where 0 determines the state of full activity, without symptoms of the disease, and grade 5 is death.19
A questionnaire comprising items related to patients’ demographic characteristics, smoking and alcohol intake was completed by researchers based on individual interviews. Data on the disease (type and stage, time from diagnosis, treatment received) were collected from the patients’ medical records.
Copyright and License information: ©2021 Polański et al.
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