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Table 3 Convergent validity of the SF-36 questionnairea

From: Reliability and validity of the SF-36 Health Survey Questionnaire in patients with brain tumors: a cross-sectional study

SF-36 subscales Barthel index SF-36 physical component summary SF-36 mental component summary Beck depression Inventory-II
Total score Item 12: interest in other people Item 17: fatigue
Physical Functioning .487 .755 .541 -.519 -.298 -.206
Role Limitations Due To Physical Problems .246 .829 .682 -.376 -.212 -.162
Pain .296 .718 .486 -.342 -.250 -.281
General Health .269 .542 .537 -.519 -.415 -.342
Vitality .311 .643 .746 -.602 -.413 -.440
Social Functioning .277 .643 .749 -.476 -.463 -.306
Role Limitations Due To Emotional Problems .235 .607 .820 -.355 -.258 -.143
Mental Health .239 .539 .752 -.601 -.488 -.466
Mental component summary .329 .769 - -.606 -.455 -.354
Physical component summary .429 - .769 -.564 -.356 -.317
  1. aSpearman rank-order correlation
  2. All p-values <0.05