Table 3.

PD incidence by age.

Number of person-years			Number of de novo PD cases		PD incidence rate (95% CI)* (per 1,000 person-years)
Total	M	F	Total	M	F	Total	M	F
10,496,949	5237349.6	5259599.1	9,924	4,402	5,522	0.95 (0.93–0.96)	0.84 (0.82–0.87)	1.05 (1.02–1.08)
1,826,541	1020941.4	805599.6	345	193	152	0.19 (0.17–0.21)	0.19 (0.16–0.22)	0.19 (0.16–0.22)
2534288.7	1312161.9	1222126.8	759	366	393	0.30 (0.28–0.32)	0.28 (0.25–0.31)	0.32 (0.29–0.36)
1961058.7	992969.9	968088.8	1,174	574	600	0.60 (0.57–0.63)	0.58 (0.53–0.63)	0.62 (0.57–0.67)
1564566.1	767917.7	796648.4	1763	760	1,003	1.13 (1.08–1.18)	0.99 (0.92–1.06)	1.26 (1.18–1.34)
1319382.1	611688.7	707693.4	2,504	1,067	1,437	1.90 (1.83–1.97)	1.74 (1.64–1.85)	2.03 (1.93–2.14)
793203.5	343,126	450077.5	2029	853	1,176	2.56 (2.45–2.67)	2.49 (2.32–2.66)	2.61 (2.47–2.77)
350548.8	133,240	217308.8	1,020	449	571	2.91 (2.74–3.09)	3.37 (3.07–3.70)	2.63 (2.42–2.85)
116073.6	43786.3	72287.3	280	119	161	2.41 (2.15–2.71)	2.72 (2.27–3.25)	2.23 (1.91–2.60)
31286.2	11517.7	19768.5	50	21	29	1.60 (1.21–2.11)	1.82 (1.19–2.80)	1.47 (1.02–2.11)

^*CI of the incidence rate was obtained under the assumption that the number of events follows a Poisson distribution.

CI, confidence interval; PD, Parkinson’s disease.