. Author manuscript; available in PMC: 2022 Jun 28.

Published in final edited form as: Mov Disord. 2021 Aug 5;36(12):2811–2820. doi: 10.1002/mds.28727

Table 2. Overall mortality rates and ratios in the Parkinson’s disease (PD) and non-PD groups.

Parameter	General population (non-PD cohort) (n = 55,664)	PD cohort (n = 10,104)	P value
Deaths, n	9167	2031	<0.001
PY per 1000 (95% CI)	183.09	36.23
Rate per 1000 PY (95% CI)	50.07 (49.05 to 51.10)	56.06 (53.68 to 58.56)
Unadjusted mortality rate ratio	1 (Reference)	1.12 (1.07 to 1.17)	<0.001
Age, gender, calendar year, social deprivation, smoking adjusted mortality rate ratio (95% CI)	1 (Reference)	1.14 (1.09 to 1.20)	<0.001

Abbreviations: PD, Parkinson’s disease; PY, person-years; CI, confidence interval.