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Am J Health Behav. 2007 Mar-Apr;31(2):193-202.

Validation of the WHI brief physical activity questionnaire among women diagnosed with breast cancer.

Author information

  • 1San Diego State University Research Foundation, San Diego, CA, USA.

Abstract

OBJECTIVE:

To investigate the psychometric properties of the physical activity (PA) measure of the Women's Health Initiative (WHI).

METHODS:

Women diagnosed with breast cancer and enrolled in the Women's Healthy Eating and Living Study (average age 55 years) wore an accelerometer for 1 week and completed the 7-day Physical Activity Recall (PAR) and brief WHI measure.

RESULTS:

Both self-reports correlated 0.73 with the accelerometer and had 100% sensitivity for meeting the current PA guideline, but specificity was significantly higher for the PAR.

CONCLUSIONS:

The WHI measure had comparable validity, sensitivity, and measurement bias compared to the widely accepted PAR.

PMID:
17269909
[PubMed - indexed for MEDLINE]
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