Fig. 2From: Hypovitaminosis D is associated with negative outcome in dogs with protein losing enteropathy: a retrospective study of 43 casesKaplan-Meier curve and Cox regression using >16 nmol/l, 117–41 nmol/l, and >42 nmol/l as cut-off points for 25(OH) D serum concentration. Higher (25(OH) D serum concentration at diagnosis indicated a better survival of PLE dogs with an hazard ratio of 0.974 (95% CI 0.949, 0.999) per one nmol/l increase in vitamin DBack to article page