The impact of vitamin D supplementation on peripheral neuropathy in a sample of Egyptian prediabetic individuals

short-form McGill Pain Questionnaire:to assess the dimensions of pain including pain sensations such as throbbing, shooting, stabbing, sharp, cramping, gnawing, hot, burning, aching, heavy, tender, and splitting. Descriptors l-11 represents the sensory dimension of pain; which encompasses both the quality and severity of pain. It includes the patient's report of the location, quality, and intensity of pain. Assessing this dimension helps quantify the pain and clarify the extent of poorly localized or radiating pain and 12-15 represent the affective dimension which describes the unpleasantness, the pain feels like a single unpleasant bodily experience. Each descriptor was ranked on an intensity scale of 0 = none, 1 = mild, 2 = moderate, 3 = severe. Interpretation: The more the score the more pain Douleur Neuropathic 4 diagnostique questionnaire (DN4) : to assess symptoms reflecting pain as sensations of burning, painful cold, electric shocks, tingling, pins and needles, and brushing Interpretation: If the patients score is ≥ 4, the test indicates that the patient is likely to be suffering from neuropathic pain