By Colin Kenny, GP, Dromore
In this prospective study conducted in South Africa, consecutive patients attending a diabetes clinic were assessed. They had vitamin B12 levels taken and were assessed for peripheral neuropathy using a Neuropathy Total Symptom Score-6 questionnaire.
Among 121 participants, the prevalence of vitamin B12 deficiency was 28.1%. There was no difference in the presence of neuropathy between those with normal and those with deficient vitamin levels. Being of Black African descent seemed to protect against vitamin B12 deficiency in the study.
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