Can self-perceived easy fatigability be a predictor of vitamin D deficiency in young Indian women?

BACKGROUND: Easy fatigability is a common presenting complaint in Indian women who visited primary care hospitals. Many medical conditions like cancer, chronic bronchial asthma, prolonged use of glucocorticosteroid, renal disorder, and hypothyroidism have been associated with low levels of vitamin D. Correction of vitamin D level improves the symptom of fatigue. Whether low vitamin D causes fatigue in otherwise healthy women is the subject of research. AIM: This prospective nonrandomized and therapeutic study observed the prevalence of hypovitaminosis D in women with fatigue and the effect of correction of vitamin D level in fatigue-like symptoms. MATERIAL AND METHODS: One thousand two hundred adult women, who presented in our primary care hospital with complaints of easy fatigue, otherwise no associated medical illness were included. They completed the fatigue assessment questionnaire (FAQ). Patients with hypovitaminosis D received cholecalciferol (60000 IU) therapy for 5 weeks. Scores of pre- and post-treatment FAQs were noted and compared. RESULTS: The prevalence of low vitamin D was noted in 84.8% women who presented with main complaints of fatigue. After the correction of vitamin D level, fatigue symptom scores improved significantly (P < 0.001) in 82.6% of the women in all five-subscale categories of the FAQ. CONCLUSION: We observed a high prevalence of low serum vitamin D level in women who presents with fatigue with no medical illness. A significant improvement was noted in the severity of their fatigue symptoms after the correction of vitamin D levels with cholecalciferol therapy.