Rs7041

A study of 414 (ex)-smokers older than 50 years concluded that vitamin D levels were reduced by 25% in rs7041](T;T) homozygotes (p<0.0001), and even after correction for age, gender and smoking history, they were also at increased risk for [[chronic obstructive pulmonary disease (COPD; odds ratio 2.11, CI: 1.20-3.71, p=0.009). They conclude that since vitamin D deficiency occurs frequently in COPD and correlates with its severity, vitamin D supplementation may be warranted in patients with severe COPD, and especially in those carrying rs7041(T) alleles.