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 deathTotal number of deceased patients ()Number of deceased males ()Number of deceased females ()
ObservedExpectedSMR95% CIObservedExpectedSMR95% CIObservedExpectedSMR95% CI

Infectious diseases020.0010.0010.0
Tumours87621.41.1–1.743291.51.0–1.944331.30.9–1.7
Endocrine/metabolic diseases761.20.3–2.0622.50.5–4.6130.30.0–0.9
Mental illness570.70.1–1.2331.00.0–2.6250.40.0–0.9
Diseases in the circulatory system1001450.70.6–0.863660.90.7–1.237790.40.3–0.6
Diseases in the respiratory system22221.00.6–1.411101.10.4–1.711120.90.4–1.5
Diseases in the digestive system790.80.2–1.4541.20.2–2.4250.40.0–0.9
All causes2452780.90.8–0.91431271.10.9–1.31021500.70.5–0.8

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