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

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

25-hydroxyvitamin	positive for HRV at exacerbation		Total
D status	No	Yes	Total
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

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).

ISSN: 1471-2466