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- Title
Validity of a visual scoring method using gummy jelly for evaluating chewing efficiency in a large‐scale epidemiological survey.
- Authors
Igarashi, Kentaro; Watanabe, Yutaka; Kugimiya, Yoshihiro; Shirobe, Maki; Edahiro, Ayako; Kaneda, Koh; Hasegawa, Yoko; Ito, Masayasu; Hirano, Hirohiko; Sakurai, Kaoru; Ono, Takahiro; Inagaki, Hiroki; Awata, Shuichi; Kawai, Yasuhiko
- Abstract
Summary: Background: Several methods exist for objectively evaluating chewing efficiency by using gummy jelly. However, the validity of the subjective visual evaluation of chewing efficiency has not been assessed. Objective: To verify with an epidemiological study, the validity of a visual scoring method using gummy jelly by testing the relationship between masticatory performance (MP) using a fully automatic measuring system and visual score (VS) using a visual scoring method. Methods: Community‐dwelling elderly individuals (n = 1234) ≥70 years old participated. One evaluator measured VS consecutively after participants chewed the gummy jelly (ie, actual‐VS). The chewed jelly was photographed. Two evaluators used the photograph to measure the gummy jelly (ie, photo‐VS). To test the validity of both methods, the correlation between actual‐VS and MP and between photo‐VS and MP were analysed. Inter‐rater reliability between the evaluators of photo‐VS was analysed. Results: Significant correlations existed between actual‐VS and MP and between photo‐VS and MP (r = 0.86‐0.87; P < 0.001). The intra‐class correlation coefficient of the inter‐rater reliability for photo‐VS was very high (0.93; P < 0.001; 95% confidence interval: 0.877‐0.953); however, the distribution of photo‐VS deviated slightly from the actual‐VS. A large coefficient of variation in the MP for low VSs suggested the influence of incomplete comminution, which was not reflected by the VS, and the accidental swallowing of small pieces during chewing. Conclusion: The VS deviated slightly from the MP calculated using a fully automated method; however, the VS can be utilised for epidemiological surveys with numerous participants.
- Subjects
MASTICATION; VISUAL perception; JELLY candy; TEST scoring; TEST validity; OLDER people physiology; EPIDEMIOLOGICAL research; PHOTOGRAPHIC equipment; CHEWING gum; CONFIDENCE intervals; DEGLUTITION; PHARMACEUTICAL gels; SURVEYS; INDEPENDENT living; INTER-observer reliability; DESCRIPTIVE statistics; INTRACLASS correlation
- Publication
Journal of Oral Rehabilitation, 2019, Vol 46, Issue 5, p409
- ISSN
0305-182X
- Publication type
Article
- DOI
10.1111/joor.12761