The Claim
Combining waist-to-hip ratio with body mass index improves the accuracy of predicting type 2 diabetes risk in adults aged 50 and older, increasing the C-statistic by 0.028 and improving reclassification metrics compared to waist-to-hip ratio alone.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Using both waist-to-hip ratio and body mass index together predicts type 2 diabetes risk more accurately in adults aged 50 and older than using waist-to-hip ratio alone, as measured by a 0.028 increase in the C-statistic and better reclassification of risk categories.
See the scientific wording
Combining waist-to-hip ratio with body mass index improves the accuracy of predicting type 2 diabetes risk in adults aged 50 and older, increasing the C-statistic by 0.028 and improving reclassification metrics compared to WHR alone.
Excess fat around the abdomen releases fatty acids that overwhelm the liver, causing it to produce too much sugar and resist insulin. Fat around the hips and thighs normally helps keep insulin working properly, but when there is also a lot of belly fat, the harmful effects win out and blood sugar control breaks down. Adding body mass index to waist-to-hip ratio captures both the dangerous belly fat and the protective hip fat, making it easier to spot who is at risk.
What the research says
1 studyAdding BMI to waist-to-hip ratio helps doctors better guess who might get type 2 diabetes in older adults — the study proved it works better than using waist-to-hip ratio alone.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.