Fig. 2From: Exploring the possibility of predicting human head hair greying from DNA using whole-exome and targeted NGS dataCHAID classification tree generated for greying vs. no greying classification in a replication cohort of 849 individuals from Poland using the data for age and IRF4 rs12203592 only. The tree has 7 nodes with 5 terminal nodes. One sample was discarded from analysis due to the lack of information on ageBack to article page