Table 3 Incidence rates per 1000 person-years (95% CI) for Parkinson disease per 10-year age category

Age group, yMenWomenOverall
CasesPerson-yearsIncidence rate (95% CI)CasesPerson-yearsIncidence rate (95% CI)CasesPerson-yearsIncidence rate (95% CI)Male-to-female ratio (95% CI)
* Cumulative incidence (risk of Parkinson disease between age 55 and 85), assuming no competing causes of death.
† Age-adjusted ratio.
55–6524,3420.5 (0.1–1.8)15,9920.2 (0.0–1.2)310,3350.3 (0.1–1.0)2.79 (0.25–30.75)
65–7567,0310.9 (0.4–1.9)169,0261.8 (1.1–2.9)2216,0581.4 (0.9–2.1)0.46 (0.18–1.16)
75–85173,4424.9 (3.1–7.9)146,0132.3 (1.4–3.9)319,4553.3 (2.3–4.7)1.94 (0.96–3.94)
>8566329.5 (4.3–21.1)51,9422.6 (1.1–6.2)112,5754.3 (2.4–7.7)3.72 (1.13–12.19)
Total3115,4476.1%*3622,9724.2%*6738,4224.9%*1.54 (0.95–2.51)