For young kids in the Pacific islands, measuring their waist size can help spot a skin condition called acanthosis nigricans. For boys 2-5 years old, a waist size of about 58 cm (90th percentile) correctly identifies about half of the kids with the skin condition and correctly rules it out for 91% of kids without it.
Scientific Claim
Waist circumference cut points are associated with the presence of acanthosis nigricans in children aged 2-8 years from the US-Affiliated Pacific region, with boys aged 2-5 years having a cut point of 58.25 cm (90th percentile) showing 48.0% sensitivity and 91.5% specificity.
Original Statement
“For boys aged 2 to 5 years, 90th percentile (58.25 cm; sensitivity, 48.0%; specificity, 91.5%);”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
association
Can only show association/correlation
Assessment Explanation
The study is cross-sectional and shows association, not causation. Using 'associated with' is appropriate. The specific numbers and context are correctly stated.
Evidence from Studies
Supporting (1)
Determination of Child Waist Circumference Cut Points for Metabolic Risk Based on Acanthosis Nigricans, the Children’s Healthy Living Program