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. Author manuscript; available in PMC: 2010 Mar 16.
Published in final edited form as: Arch Neurol. 2009 Jul 13;66(9):1099–1104. doi: 10.1001/archneurol.2009.159

Table 2.

Final Cox Regression Model (n=405)a

Parameter HR (95% CI) P Value
Education, 4-year increment 1.38 (1.16-1.65) <.001
UPDRS III, 1-point increment 1.04 (1.01-1.06) .001
UPDRS II, participant reported,
 1-point increment		 1.08 (1.04-1.12) <.001
Modified Rankin Scale, >1 vs ≤1 1.73 (1.15-2.61) .009

Abbreviations: CI, confidence interval; HR, hazard ratio; UPDRS, Unified Parkinson Disease Rating Scale.

a

Adjusted for experimental drug assignment, P=.78.