Causes of Death in Implant Patients Treated in the Edentulous Jaw: A Comparison between 2098 Deceased Patients and the Swedish National Cause of Death Register

Table 2

Mortality among 2496 (1384 females vs. 1112 males) treated edentulous patients undergoing treatment with dental implants 1986–1996 and deceased between 1986 and 1996.

Cause of death	Total number of deceased patients ()				Number of deceased males ()				Number of deceased females ()
	Observed	Expected	SMR	95% CI^†	Observed	Expected	SMR	95% CI	Observed	Expected	SMR	95% CI
Infectious diseases	0	2	0.0		0	1	0.0		0	1	0.0
Tumours	87	62	1.4^‡	1.1–1.7	43	29	1.5	1.0–1.9	44	33	1.3	0.9–1.7
Endocrine/metabolic diseases	7	6	1.2	0.3–2.0	6	2	2.5	0.5–4.6	1	3	0.3^‡	0.0–0.9
Mental illness	5	7	0.7	0.1–1.2	3	3	1.0	0.0–2.6	2	5	0.4^‡	0.0–0.9
Diseases in the circulatory system	100	145	0.7^‡	0.6–0.8	63	66	0.9	0.7–1.2	37	79	0.4^‡	0.3–0.6
Diseases in the respiratory system	22	22	1.0	0.6–1.4	11	10	1.1	0.4–1.7	11	12	0.9	0.4–1.5
Diseases in the digestive system	7	9	0.8	0.2–1.4	5	4	1.2	0.2–2.4	2	5	0.4^‡	0.0–0.9
All causes	245	278	0.9^‡	0.8–0.9	143	127	1.1	0.9–1.3	102	150	0.7^‡	0.5–0.8

SMR: standardised mortality ratio; ^†95% CI, 95% confidence interval; ^‡statistically significant.