Figure 3From: Severe tooth wear in Prader-Willi syndrome. A case–control study Tooth wear presented as median I A for individuals in PWS- and control-group divided in three equally large age groups. Age groups (mean age, range years): 1; 9.8 (6.1-13.6) (n = 32), 2; 20.2 (13.7-25.4) (n = 34), 3; 31.5 (25.5-42.5) (n = 32).Back to article page