Measurement properties of the Human Activity Profile questionnaire in hospitalized patients

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Abstract

Objective To test the measurement properties (reproducibility, internal consistency, ceiling and floor effects, and construct validity) of the Human Activity Profile (HAP) questionnaire in hospitalized patients. Methods This measurement properties study recruited one-hundred patients hospitalized for less than 48 h for clinical or surgical reasons. The HAP was administered at baseline and after 48 h in a test–retest design). The International Physical Activity Questionnaire (IPAQ-6) was also administered at baseline, aiming to assess the construct validity. We tested the following measurement properties: reproducibility (reliability assessed by type 2,1 intraclass correlation coefficient (ICC2,1)); agreement by the standard error of measurement (SEM) and by the minimum detectable change with 90% confidence (MDC90), internal consistency by Cronbach's alpha, construct validity using a chi-square test, and ceiling and floor effects by calculating the proportion of patients who achieved the minimum or maximum scores. Results Reliability was excellent with an ICC of 0.99 (95% CI = 0.98–0.99). SEM was 1.44 points (1.5% of the total score), the MDD90 was 3.34 points (3.5% of the total score) and the Cronbach's alpha was 0.93 (alpha if item deleted ranging from 0.94 to 0.94). An association was observed between patients classified by HAP and by IPAQ-6 (χ2 = 3.38; p = 0.18). Ceiling or floor effects were not observed. Conclusion The HAP shows adequate measurement properties for the assessment of the physical activity/inactivity level in hospitalized patients.

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Souza, D. C., Wegner, F., Costa, L. C. M., Chiavegato, L. D., & Lunardi, A. C. (2017). Measurement properties of the Human Activity Profile questionnaire in hospitalized patients. Brazilian Journal of Physical Therapy, 21(3), 153–158. https://doi.org/10.1016/j.bjpt.2017.03.011

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