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R B Singer

Publications and source records attributed to R B Singer.

51 records · Page 3Linked to original sources
PubMed1985

Examples of early mortality follow-up studies.

Numerous mortality studies may be found in publications of the life insurance industry dating back about a century. Examples presented include mortality in asthma history (1903), overweight (1844-1905), and hypertension (1907-11). The favorable effect of underwriting selection on mortality was recognized early, and standard insurance mortality tables in North America have always distinguished between select and ultimate mortality rates. The mortality ratio has been the traditional measure of excess mortality in insurance follow-up studies. Similar mortality studies in the medical literature before 1920 are extremely difficult for investigators to locate. One important exception with regard to methodology and completeness of comparative mortality and survival results was a 20-year follow-up of pulmonary tuberculosis patients after discharge that was reported in 1908.

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PubMed1981

Mortality in an insured population with atrial fibrillation.

In a cooperative study of 3,099 life insurance applicants with atrial fibrillation (AF), 71 deaths over an average duration of 3.3 years were observed and compared with deaths expected and derived from standard insurance mortality tables. A normal mortality was observed in cases of paroxysmal AF with no other identified cardiovascular impairment. Paroxysmal AF with associated mitral stenosis or coronary disease was found to have a significantly increased mortality. Chronic AF with or without other impairments entails a much higher risk than paroxysmal AF, those cases associated with mitral stenosis showing very high excess mortality.

Actuarial Analysis↗