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Criterion-related validity of the last 7-day, short form of the International Physical Activity Questionnaire in Swedish adults
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences.
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2006 (English)In: Public Health Nutrition, ISSN 1368-9800, E-ISSN 1475-2727, Vol. 9, no 2, 258-265 p.Article in journal (Refereed) Published
Abstract [en]

 

 

 

 

 

 

 

 

 

 

 

Objective:

To examine the validity of the short, last 7-day, self-administered form of

the International Physical Activity Questionnaire (IPAQ).

 

Design:

 

 

All subjects wore an accelerometer for seven consecutive days and completed the IPAQ questionnaire on the eighth day. Criterion validity was assessed by linear regression analysis and by modified Bland–Altman analysis. Specificity and sensitivity were calculated for classifying respondents according to the physical activity guidelines of the American College of Sports Medicine/Centers for Disease Control and Prevention.

 

Setting:

 

 

Workplaces in Uppsala, Sweden.

Subjects:

 

 

One hundred and eighty-five (87 males) participants, aged 20 to 69 years.

Results:

Total self-reported physical activity (PA) (MET-min day21) was significantly correlated with average intensity of activity (counts min

21) from accelerometry (r ¼ 0.34, P 0.001). Gender, age, education and body mass index did not affect this relationship. Further, subcomponents of self-reported PA (time spent sitting, time in PA, time in moderate and vigorous activity (MVPA)) were significantly correlated with objectively measured PA (P , 0.05). Self-reported time in PA was significantly different from time measured by accelerometry (mean difference: 225.9 min day21; 95% limits of agreement: 2172 to 120 min day21; P , 0.001). IPAQ identified 77% (specificity) of those who met the current PA guidelines of accumulating more than 30 min day 21

in MVPA as determined by accelerometry, whereas only 45% (sensitivity) of those not meeting the guidelines were classified correctly.

 

Conclusions:

 

 

Our results indicate that the short, last 7-days version of the IPAQ has acceptable criterion validity for use in Swedish adults. However, the IPAQ instrument significantly overestimated self-reported time spent in PA. The specificity to correctly classify people achieving current PA guidelines was acceptable, whereas the sensitivity was low.

Place, publisher, year, edition, pages
2006. Vol. 9, no 2, 258-265 p.
Keyword [en]
Accelerometry, energy expenditure, MET-min, physical activity, self-report, sensitivity, specificity
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-109049DOI: 10.1079/PHN2005840ISI: 000236386700013PubMedID: 16571181OAI: oai:DiVA.org:uu-109049DiVA: diva2:246105
Available from: 2009-10-08 Created: 2009-10-08 Last updated: 2010-11-18Bibliographically approved

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