NHS / NICE scale · waist as the determinant
Central Adiposity Screener
BMI proposes a rating. Waist circumference then decides whether that rating holds — confirming it, raising it, or failing to back it up. BMI is highly specific but misses roughly half of people carrying excess fat, so a normal BMI with a big waist is under-rated, and a high BMI with a slim waist may be over-rated. The waist is the tie-breaker.
At the navel, tape flat, breathe out.
Overall weight-related risk
Increased
BMI alone marker sits under the needle — no shift.
BMI
26.5
Overweight
NHS cut-offs
Waist · determinant
92.0 cm
Below action level 1
AL1 94 · AL2 102 cm
Waist ÷ height
0.517
0.50–0.59
Corroborator · keep under 0.50
Body Roundness
3.68
Below average
Context · lowest risk 4.5–5.5
Interpretation
Your waist sits below the action level, yet waist-to-height is 0.517 — at or above 0.50. That keeps the BMI rating of Increased standing rather than downgrading it. Waist-to-height often flags central adiposity a single waist threshold misses, especially in shorter people.