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. 2022 Mar 9;80(1):75.
doi: 10.1186/s13690-022-00836-z.

Change in waist circumference and lifestyle habit factors as a predictor of metabolic risk among middle-aged and elderly Japanese people: population-based retrospective 10-year follow-up study from 2008 to 2017

Haruko Ono  1 , Kotomi Akahoshi  2 , Michiaki Kai  3
Affiliations

Change in waist circumference and lifestyle habit factors as a predictor of metabolic risk among middle-aged and elderly Japanese people: population-based retrospective 10-year follow-up study from 2008 to 2017

Haruko Ono et al. Arch Public Health. .

Abstract

Background: Waist circumference (WC) increases more than body mass index (BMI) over time. This study investigated the change in WC among middle-aged and elderly Japanese people for 10 years, and its relationship with lifestyle and lipid metabolism factor.

Methods: Health checkup data and lifestyle habits of a retrospective cohort of 745 people aged 40-65 years who underwent health checkups at least three times between 2008 and 2017 were analyzed. Information of Lifestyle habits about smoking history, regular exercise, alcohol intake skipping breakfast was collected using a self-administered questionnaire. Participants who were taking medications for diabetes, hyperlipidemia, or hypertension were excluded from analyses. Longitudinal associations between the change in WC and lifestyle habit factors with adjustments for sex, age, and WC at the start of health checkups were assessed using generalized linear models.

Results: Regardless of lifestyle, body weight (BW) decreased 0.8 kg (p < 0.001) for women, 0.9 kg (p = 0.003) for men, WC increased 0.8 cm (p = 0.007) for women, 0.2 cm (p = 0.657) for men. In addition, serum triglycerides and high- and low-density lipoprotein levels estimated 10 years later revealed that increased WC ratios also exacerbated the respective blood sample data.

Conclusion: Both men and women showed an increase in WC regardless of BW changes, and the increase in WC worsened lipid metabolism. For the middle-aged and elderly, whose WC increases over time, it will be more important to take notice of their WC than BW or BMI for effective health checkups.

Keywords: Health checkup; Lifestyle habits; Waist circumference.

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Conflict of interest statement

The authors declare that they have no competing interests in relation to this manuscript.

Figures

Fig. 1
Fig. 1
Flowchart for the inclusion and exclusion of this study cohort: Population-based retrospective study of Japan from 2008 to 2017 in Japan
Fig. 2
Fig. 2
Correlation of Waist circumference ratio with BMI ratio and Body weight ratio: Population-based retrospective study of Japan from 2008 to 2017 in Japan
Fig. 3
Fig. 3
Scatter plots of WC changes and predicted values of TG, HDL, and LDL changes.: Population-based retrospective study of Japan from 2008 to 2017 in Japan. bWC, waist circumference; TG, triglycerides; HDL, high-density lipoprotein cholesterol; LDL, low-density lipoprotein cholesterol; Baseline WC, waist circumference at 2007; 40 s, 40 years; 50 s, 50 years; 60 s, 60 years
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