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Table 4 Convergent Validity – Correlations Between SF-36 and the FACT-An Fatigue and Anemia Subscales

From: Measurement properties of the Short Form-36 (SF-36) and the Functional Assessment of Cancer Therapy - Anemia (FACT-An) in patients with anemia associated with chronic kidney disease

SF-36 domain/Component Summary score

FACT-An subscale

Anemia

Fatigue

Physical functioning

0.63***

0.60***

Role-Physical

0.64***

0.61***

Vitality

0.77***

0.76***

Role-Emotional

0.53***

0.52***

Mental Health

0.54***

0.52***

Social Functioning

0.66***

0.67***

Bodily Pain

0.53***

0.53***

General Health

0.64***

0.61***

Mental Component Summary score

0.62***

0.62***

Physical Component Summary score

0.69***

0.66***

  1. Spearman’s rank order correlation. *** p < 0.001
  2. Abbreviations: FACT-An Functional Assessment of Cancer Therapy-Anemia, SF-36 Medical Outcomes Survey Short Form-36