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Nightly fasting duration is not associated with the prevalence of metabolic syndrome among non‐shift workers: The Furukawa Nutrition and Health Studymx
Author(s) -
Ueda Mariko,
Inoue Yosuke,
Hu Huan,
Eguchi Masafumi,
Islam Zobida,
Miki Takako,
Fukunaga Ami,
Kochi Takeshi,
Akter Shamima,
Kabe Isamu,
Akamatsu Rie,
Mizoue Tetsuya
Publication year - 2020
Publication title -
american journal of human biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.559
H-Index - 81
eISSN - 1520-6300
pISSN - 1042-0533
DOI - 10.1002/ajhb.23437
Subject(s) - medicine , metabolic syndrome , waist , blood pressure , odds ratio , confidence interval , logistic regression , population , endocrinology , body mass index , obesity , environmental health
Objectives While several experimental studies in animals and humans have suggested the protective effect of nightly fasting duration (NFD) against cardiometabolic risk factors, few population‐based studies have been conducted. This study aimed to investigate the association between NFD and metabolic syndrome (MetS) among Japanese non‐shift workers. Methods A subset of 1054 non‐shift workers from the Furukawa Nutrition and Health Study were included in this analysis. Participants completed dietary and lifestyle surveys during a periodic checkup. NFD was defined as the time between dinner and breakfast and was categorized into four groups (ie, ≥12 hours, 11 hours, 10 hours, and ≤9 hours). MetS was defined as ≥3 of the following components: high waist circumference (≥90 cm [men] and ≥80 cm [women]), high triglycerides (≥150 mg/dL), low high‐density lipoprotein cholesterol (<40 mg/dL [men] and <50 mg/dL [women]), hypertension (systolic blood pressure ≥130 mm Hg or diastolic blood pressure ≥85 mm Hg), and high fasting glucose (fasting plasma glucose ≥100 mg/dL or hemoglobin A1c ≥5.6%). A multivariable logistic regression model was used to examine the association between NFD and MetS. Results The odds ratios (95% confidence intervals) of MetS for the highest (≥12 hours) through lowest (≤9 hours) NFD categories were 1.00 (reference), 0.83 (0.51‐1.35), 0.83 (0.48‐1.43), and 0.80 (0.43‐1.48) ( P for trend = 0.50) after adjusting for covariates. Further analyses on the relationship between NFD and each MetS component found no significant associations. Conclusions We did not find any evidence of a significant association between NFD and MetS among non‐shift workers in Japan.