Evolution of Orofacial Symptoms and Disease Progression in Idiopathic Parkinson’s Disease: Longitudinal Data from the Jönköping Parkinson Registry

Figure 2

Survival curve to progress into the more than median value of the maximum UPDRS scores during the follow-up in patients with idiopathic Parkinson’s disease with different severities of orofacial symptoms at baseline: (a) UPDRS-Part II: 1st tertile [median survival time = 8.5 yr (SE = 1.4)], 2nd tertile [median survival time = 8.0 yr (SE = 1.3)], and 3rd tertile [median survival time = 0.8 yr (SE = 0.6)] (Breslow value < 0.001). (b) UPDRS-Part III: 1st tertile [median survival time = 7.8 yr (SE = 1.0)], 2nd tertile [median survival time = 6.2 yr (SE = 0.9)], and 3rd tertile [median survival time = 4.7 yr (SE = 2.2)] (Breslow value = 0.014).

(a)

(b)