Table 3. Age at death by cause of death among patients with amyotrophic lateral sclerosis in Taiwan, 2003–2008.

Underlying cause of death	Age at death						All
	15–44		45–64		≥65
	n	Mortalitya	n	Mortalitya	n	Mortalitya	n	Mortalitya
Respiratory diseases	13	2.93	71	8.65	67	15.71	151	8.93
Cardiovascular diseases	2	0.45	9	1.10	21	4.93	32	1.89
Metabolic diseases	1	0.23	5	0.61	8	1.88	14	0.83
Urinary system diseases	0	0	3	0.37	8	1.88	11	0.65
Cancer	0	0	1	0.12	8	1.88	9	0.53
Suicide	1	0.23	4	0.49	1	0.23	6	0.36
Digestive system diseases	3	0.68	1	0.12	1	0.23	5	0.30
Diseases of the musculoskeletal system or connective tissue	1	0.23	5	0.61	4	0.94	10	0.59
Symptoms, signs, and ill-defined conditions	8	1.81	16	1.95	19	4.46	43	2.54
Nervous system diseases	1	0.23	2	0.24	2	0.47	5	0.30
Unknown	1	0.23	4	0.49	6	1.23	11	0.65
Total	31	7.00	121	14.75	145	34.01	297	17.57

^aPer 100 person-years.