Waist Circumference and Insulin Resistance in Japanese Men
Author Information
Author(s): Tabata Shinji, Yoshimitsu Shinichiro, Hamachi Tadamichi, Abe Hiroshi, Ohnaka Keizo, Kono Suminori
Primary Institution: Self-Defense Force Fukuoka Hospital, Fukuoka, Japan
Hypothesis
What is the relationship between waist circumference and insulin resistance in middle-aged Japanese men?
Conclusion
Waist circumference is linearly related to insulin resistance, and 85 cm in waist circumference is an optimal cutoff in predicting insulin resistance in middle-aged Japanese men.
Supporting Evidence
- The study included 4800 men and found a strong correlation between waist circumference and insulin resistance.
- The optimal cutoff for waist circumference in predicting insulin resistance was determined to be 85 cm.
- Adjusted means of HOMA-IR increased with higher waist circumference categories.
Takeaway
This study found that the bigger your waist, the more likely you are to have insulin resistance, and that 85 cm is a good size to watch out for.
Methodology
The study analyzed waist circumference and insulin resistance using HOMA-IR in 4800 Japanese men aged 39 to 60 years.
Potential Biases
Potential bias due to exclusion of individuals with certain health conditions and the focus on a specific demographic.
Limitations
The study was limited to male officials in the Self-Defense Forces and may not represent the general population.
Participant Demographics
Male Japanese officials aged 39 to 60 years.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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