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Fig. 3 | BMC Musculoskeletal Disorders

Fig. 3

From: Validity of the Nurses’ health study physical activity questionnaire in estimating physical activity in adults with rheumatoid arthritis

Fig. 3

Bland-Altman plot illustrating relationship between NHSPAQ derived metabolic equivalents (METs) and METs derived from the accelerometer among adults with RA (n = 34). The figure on the left shows the Bland-Altman plot without the outlier and the one on the right with the outlier (NOTE: scale changes with deletion of outlier). The Bland-Altman plot indicates where the greatest variance in METs calculation occurs between the NHSPAQ and accelerometer trials. Upper and lower limits are +/- 1.96 standard deviations of the average difference between METs calculations

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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