Vitamin D deficiency is common in children in West Virginia and is associated with increasing age and obesity. Vitamin D screening and supplementation should be considered in all children with chronic illness, particularly those who are overweight.

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These results suggest that there are no differences in measures of pulmonary function (minute ventilation, forced vital capacity, and forced expiratory volume in 1 second) and breathing frequency, heart rate, and blood oxygen saturation between slumped and upright sitting in patients with COPD. Based on this evidence alone, it may be inappropriate to instruct a patient with COPD to sit upright to improve respiratory function. However, further study is warranted before any definite recommendations can be made regarding sitting posture and respiratory performance in individuals with COPD.

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