PGF and Hermansky-Pudlak syndrome: There was no association between serum PlGF levels and the presence of HPS, as assessed by a logistic regression model adjusted for liver disease severity using either the Child-Pugh score (Odds ratio [OR] 0.960; 95% CI 0.908–1.016,) or the MELD score (OR 0.978; 95% CI 0.930–1.028).