Dietary patterns and C-peptide concentrations in a Japanese working population

Shamima Akter, Akiko Nanri, Siyan Yi, Ngoc Minh Pham, Kayo Kurotani, Yasumi Kimura, Yumi Matsushita, Tetsuya Mizoue

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Objective: It remains unsettled whether dietary patterns play a role in insulin resistance. We assessed the association of major dietary patterns with C-peptide concentrations in a Japanese working population. Methods: A cross-sectional study was conducted in 456 municipal employees (270 men and 186 women) 21 to 67 y old who participated in a health survey at the time of their periodic checkup. The dietary patterns were derived by using the principal component analysis of the consumption of 52 food and beverage items, which was assessed by a validated brief dietary history questionnaire. Multiple regression analysis was used to estimate the means of C-peptide concentrations across tertiles of each dietary pattern score with the adjustment of potential confounders, including age, body mass index, physical activity, smoking, alcohol drinking, and energy intake. Results: We identified three dietary patterns: healthy, animal food, and Westernized breakfast patterns. The Westernized breakfast pattern was characterized by high intakes of bread, confectionaries, and milk and yogurt but low intakes of rice and alcohol and was inversely associated with C-peptide concentrations in women but not in men. The multivariable-adjusted means of C-peptide concentrations were 1.03 ng/mL (95% confidence interval 0.95-1.12), 0.95 ng/mL (95% confidence interval 0.88-1.03), and 0.89 ng/mL (95% confidence interval 0.82-0.97) for the lowest through the highest tertiles of the Westernized breakfast pattern score (P for trend = 0.015) in women. Other dietary patterns were not appreciably associated with C-peptide concentrations. In a subgroup, similar associations were observed between dietary patterns and the homeostasis model assessment of insulin resistance. Conclusion: The Westernized breakfast pattern may be associated with a lower insulin resistance in Japanese women.

Original languageEnglish
JournalNutrition
Volume28
Issue number9
DOIs
Publication statusPublished - Sep 1 2012
Externally publishedYes

Fingerprint

C-Peptide
Breakfast
Insulin Resistance
Population
Confidence Intervals
Social Adjustment
Food and Beverages
Yogurt
Bread
Principal Component Analysis
Energy Intake
Health Surveys
Alcohol Drinking
Milk
Body Mass Index
Homeostasis
Cross-Sectional Studies
Smoking
Regression Analysis
Alcohols

All Science Journal Classification (ASJC) codes

  • Endocrinology, Diabetes and Metabolism
  • Nutrition and Dietetics

Cite this

Dietary patterns and C-peptide concentrations in a Japanese working population. / Akter, Shamima; Nanri, Akiko; Yi, Siyan; Pham, Ngoc Minh; Kurotani, Kayo; Kimura, Yasumi; Matsushita, Yumi; Mizoue, Tetsuya.

In: Nutrition, Vol. 28, No. 9, 01.09.2012.

Research output: Contribution to journalArticle

Akter, S, Nanri, A, Yi, S, Pham, NM, Kurotani, K, Kimura, Y, Matsushita, Y & Mizoue, T 2012, 'Dietary patterns and C-peptide concentrations in a Japanese working population', Nutrition, vol. 28, no. 9. https://doi.org/10.1016/j.nut.2012.01.018
Akter, Shamima ; Nanri, Akiko ; Yi, Siyan ; Pham, Ngoc Minh ; Kurotani, Kayo ; Kimura, Yasumi ; Matsushita, Yumi ; Mizoue, Tetsuya. / Dietary patterns and C-peptide concentrations in a Japanese working population. In: Nutrition. 2012 ; Vol. 28, No. 9.
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AB - Objective: It remains unsettled whether dietary patterns play a role in insulin resistance. We assessed the association of major dietary patterns with C-peptide concentrations in a Japanese working population. Methods: A cross-sectional study was conducted in 456 municipal employees (270 men and 186 women) 21 to 67 y old who participated in a health survey at the time of their periodic checkup. The dietary patterns were derived by using the principal component analysis of the consumption of 52 food and beverage items, which was assessed by a validated brief dietary history questionnaire. Multiple regression analysis was used to estimate the means of C-peptide concentrations across tertiles of each dietary pattern score with the adjustment of potential confounders, including age, body mass index, physical activity, smoking, alcohol drinking, and energy intake. Results: We identified three dietary patterns: healthy, animal food, and Westernized breakfast patterns. The Westernized breakfast pattern was characterized by high intakes of bread, confectionaries, and milk and yogurt but low intakes of rice and alcohol and was inversely associated with C-peptide concentrations in women but not in men. The multivariable-adjusted means of C-peptide concentrations were 1.03 ng/mL (95% confidence interval 0.95-1.12), 0.95 ng/mL (95% confidence interval 0.88-1.03), and 0.89 ng/mL (95% confidence interval 0.82-0.97) for the lowest through the highest tertiles of the Westernized breakfast pattern score (P for trend = 0.015) in women. Other dietary patterns were not appreciably associated with C-peptide concentrations. In a subgroup, similar associations were observed between dietary patterns and the homeostasis model assessment of insulin resistance. Conclusion: The Westernized breakfast pattern may be associated with a lower insulin resistance in Japanese women.

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