Screening context only

Prediabetes screening conversation tool

Estimate a recognised screening score to decide whether to ask a qualified health worker for a blood glucose test. This cannot diagnose, rule out, or predict when diabetes will develop.

Private by design: nothing is saved or sent

Symptoms or pregnancy? Do not use this score to wait. Seek clinical assessment for marked thirst, frequent urination, unexplained weight loss, blurred vision, severe weakness, vomiting, altered breathing, or concerns during pregnancy.

Your screening inputs

For adults. The original CDC/ADA score uses sex as a statistical input; it is not a statement about identity or individual biology.

Age in years Sex used by the source score Height (cm) Weight (kg)

Source-score questions Apply the source score's lower BMI threshold for Asian American adults

This source-score adjustment changes the first BMI point from 25 to 23. It does not add an ethnicity point.

Previously diagnosed with gestational diabetes

This question is scored only when “Female” is selected in the source-score sex field.

Parent or sibling has diabetes Previously diagnosed with high blood pressure Not physically active

Reasons not to rely on a low score Possible diabetes symptoms now Currently pregnant Previous abnormal glucose result

Your screening result

Complete the inputs to see the score, assumptions and next-step conversation.

How the score works

Age, source-score sex, prior gestational diabetes, close family history, diagnosed high blood pressure, activity and a weight category are added. The metric version maps BMI 25–29.9 to 1 point, 30–39.9 to 2 points and 40+ to 3 points, with the source score's optional lower 23 BMI threshold for Asian American adults. Symptoms, current pregnancy and a previous abnormal glucose result override low-score reassurance. A total of 5 or more is a prompt for confirmatory blood testing—not a diagnosis.

Official sources, reviewed 26 July 2026: CDC: how the risk test is scored; CDC: diabetes testing; WHO diabetes fact sheet (14 November 2024).