CRP and Parkinson disease: After stratifying patients by age (≤ 70 vs. > 70 years), sex (males vs. females), PD duration (≤ 8 vs. > 8 years), mH-Y stage (1–3 vs. 4–5), MMSE (> 24 vs. ≤ 24), and albumin (> 4.0 mg/dL vs. ≤ 4.0mg/dL), the Kaplan-Meier survival curves for CRP concentration (≤ 0.8 vs. > 0.8 mg/L) showed significantly higher survival rates for patients with CRP ≤ 0.8 mg/L compared with those with CRP > 0.8 mg/L (p < 0.05, Fig 4).