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Table 3 25-hydroxyvitamin D status and positivity for HRV at exacerbation

From: 25-hydroxyvitamin D deficiency, exacerbation frequency and human rhinovirus exacerbations in chronic obstructive pulmonary disease

25-hydroxyvitamin positive for HRV at exacerbation Total
D status No Yes
 Deficient 4 (25.0%) 7 (23.3%) 11
 Insufficient 10 (62.5%) 19 (63.3%) 29
 Sufficient 2 (12.5%) 4 (13.3%) 6
Total 16 30 46
  1. 25-hydroxyvitamin D deficiency was defined as <25nmol/L, insufficiency 25 – 75nmol/L and sufficiency > 75nmol/L (conversion factor of 2.5 for nmol/L from ng/ml).