Type 2 diabetes diagnoses among Black and Asian men delayed due to hidden genetic risk

Type 2 Diabetes Diagnoses Delayed in Black and Asian Men Due to Hidden Genetic Risk

A hidden genetic variant found in Black and Asian men can cause delays in type 2 diabetes diagnoses, according to new evidence.

A genetic variant known as G6PD deficiency is detected in around one in seven Black and one in 63 South Asian men in the UK. Previous research has found that men with this genetic disorder are more likely to be diagnosed with type 2 diabetes four years later compared to those without G6PD deficiency.

“Our findings highlight the urgent need for changes to testing practices to tackle health inequalities.”

Type 2 diabetes is not triggered by G6PD deficiency, but it makes an HbA1c blood test appear artificially low, which can mislead healthcare professionals and delay a diagnosis of type 2 diabetes.

Author: Study reveals need for changes in testing practices.

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Diabetes.co.uk Diabetes.co.uk — 2025-10-13

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