Table 2 Incidence rates per 1000 person-years (95% CI) for any parkinsonism 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 parkinsonism between age 55 and 85), assuming no competing causes of death.
† Age-adjusted ratio.
55–6534,3560.7 (0.2–2.1)26,0170.3 (0.1–1.3)510,3740.5 (0.2–1.2)2.08 (0.35–12.47)
65–75107,1041.4 (0.8–2.6)299,1013.2 (2.2–4.6)3916,2062.4 (1.8–3.3)0.38 (0.18–0.80)
75–85253,6606.8 (4.6–10.1)296,4454.5 (3.1–6.5)5410,1065.3 (4.1–7.0)1.33 (0.77–2.31)
>85974412.1 (9.3–23.3)252,44810.2 (6.9–15.1)343,19310.6 (7.6–14.9)1.19 (0.50–2.85)
Total4715,8658.5%*8524,0117.7%*13239,8787.9%*0.99 (0.68–1.44)