Mortality in Levodopa-Treated Parkinson's Disease

Table 4

Mortality in PD patients stratified by age at death and disease duration.

Age at death	Percentage of total dead	Observed deaths	Expected deaths	Mortality ratio	Number of PD deaths
41–45	0.5	1	0.0189	52.91	0
46–50	0.5	1	0.0263	38.02	0
51–55	0.9	2	0.0778	25.71	1
56–60	1.9	4	0.6277	6.37	3
61–65	5.7	12	1.5998	7.50	5
66–70	13.3	28	6.3265	4.43	11
71–75	19.9	42	11.9488	3.52	24
76–80	33.2	70	26.5476	2.64	39
81–85	16.1	34	18.5483	1.83	20
86–90	7.6	16	12.5786	1.27	7
91–95	0.5	1	1.0000	1.00	1
Disease duration	Percentage of total dead	Observed deaths	Expected deaths	Mortality ratio	Number of PD deaths
1–5	17.5	37	7.0770	5.23	16
6–10	29.4	62	20.7956	2.98	28
11–15	25.6	54	23.7313	2.28	34
16–20	16.6	35	15.9910	2.19	22
21–25	8.1	17	7.7683	2.19	8
26+	2.8	6	3.9371	1.52	3