A nonlinear association of fertility and suicide rates among elderly persons.
A negative linear correlation for crude suicide rates of elderly persons with fertility rates was reported earlier but may mask a curvilinear relation. A re-analysis of those data from 81 countries as reported in the World Health Organization and United Nations data banks yielded a curvilinear (U-shaped curve) relation. Explanations require further study.
Shah
Ajit
A
University of Central Lancashire, Preston. ajit.shah@wlmht.nhs.uk