Liu M, et al. - A sum of 255 subjects were analyzed to study the relationship between 25-Hydroxyvitamin D (25OHD) and incidence of chronic kidney disease (CKD) using Cox proportional risk model. They observed subjects with CKD had comparatively lower serum 25(OH)D (mean 37.63 vs 51.36 nmol/L) to that of non-CKD. After adjusting related covariates, each 1 nmol/L increase in 25(OH)D was linked to 3.4% lesser risk of CKD. Overall, they concluded an inverse relationship of higher 25(OH)D levels with CKD incidence among Chinese elderly.