Healthcare (Jul 2024)

Increased Waist Circumference after One-Year Is Associated with Poor Chewing Status

  • Riku Yamazaki,
  • Komei Iwai,
  • Tetsuji Azuma,
  • Takatoshi Yonenaga,
  • Yasuyuki Sasai,
  • Kazutoshi Watanabe,
  • Akihiro Obora,
  • Fumiko Deguchi,
  • Takao Kojima,
  • Wakako Tome,
  • Noriyuki Kitai,
  • Takaaki Tomofuji

DOI
https://doi.org/10.3390/healthcare12131341
Journal volume & issue
Vol. 12, no. 13
p. 1341

Abstract

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Background: This study aimed to investigate the relationship between an increase in waist circumference (WC) after 1 year and self-reported chewing status in 10,870 Japanese adults who had received health checkups. Subsequently, 8068 participants were included in the final analysis. Methods: We defined an increase in WC ≥ 5 cm after 1 year as an unhealthy increase; in total, 613 (7.5%) respondents met this criterion. Chewing status was evaluated using a self-reported questionnaire at baseline; 1080 (13%) respondents were diagnosed with poor chewing status. Results: After adjusting for age, gender, WC, body mass index (BMI), and chewing status, an increase in WC ≥ 5 cm was found to be positively associated with gender (females: odds ratios [ORs]: 1.206; 95% confidence intervals [CIs]: 1.008–1.443), WC (ORs: 0.967; 95% CIs: 0.954–0.981), BMI (≥25 kg/m2; ORs: 2.194; 95% CIs: 1.715–2.808), and chewing status (poor; ORs: 1.356; 95% CIs: 1.084–1.697). Conclusions: These findings suggest that increased WC after 1 year was associated with self-reported poor chewing status in Japanese adults.

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