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- Title
Assessing Older Adults' Masticatory Efficiency.
- Authors
Cusson, Valérie; Caron, Christian; Gaudreau, Pierrette; Morais, José A.; Shatenstein, Bryna; Payette, Hélène
- Abstract
Objectives To determine internal consistency and criterion validity of a questionnaire assessing perception of masticatory efficiency in community-dwelling older adults. Design Secondary cross-sectional analysis of baseline data from the Québec Longitudinal Study on Nutrition and Successful Aging ( Nu Age). Setting Nu Age is a 5-year (2003-08) observational study of 1,793 men and women aged 67 to 84 in good general health at recruitment. Participants A sample of 1,789 was used to determine internal consistency of the questionnaire. A subsample (n = 94) of the cohort who underwent a clinical test directly measuring masticatory efficiency was used to determine criterion validity of the questionnaire. Measurements The questionnaire was a subset of the Oral Health Impact Profile containing 7 Likert-scale questions (score 0-28 points). Masticatory efficiency was assessed using a validated clinical test measuring ability to chew a raw carrot ( Swallowing Threshold Test Index, score 0-100%). For perceived and measured data, a higher score indicated better masticatory efficiency. Results Internal consistency of the questionnaire was deemed good ( Cronbach alpha = 0.803). Mean scores were generally high (men, 25.3, 95% confidence interval ( CI) = 24.7-25.9; women, 24.3, 95% CI = 23.7-25.0), indicating good perceived masticatory efficiency for men and women. Mean performance test scores were low (men, 60.8%, 95% CI = 57.3-64.2; women, 61.2%, 95% CI = 57.7-64.7). No significant relationship between perceived and measured masticatory efficiency was observed ( Pearson correlation coefficient = −0.14, P = .22). Conclusion Despite good internal consistency of the questionnaire and the recognized validity of the test, people's perception of their masticatory efficiency does not reflect objective efficiency as measured using a clinical test.
- Subjects
MASTICATION; QUESTIONNAIRES; CONFIDENCE intervals; STATISTICAL correlation; PROBABILITY theory; PSYCHOLOGICAL tests; RESEARCH funding; SCALE analysis (Psychology); CROSS-sectional method; RESEARCH methodology evaluation; OLD age
- Publication
Journal of the American Geriatrics Society, 2015, Vol 63, Issue 6, p1192
- ISSN
0002-8614
- Publication type
Article
- DOI
10.1111/jgs.13443