The relationship between population growth and elderly suicide rates: a cross-national study.

Abstract:

BACKGROUND:Elderly suicide rates are associated with the elderly population size, the proportion of elderly in the general population and the elderly dependency ratio. METHODS:A cross-national study examining the "a priori" hypothesis that the relationship between elderly suicide rates and average annual population growth rates would be curvilinear (U-shaped curve) fitting the quadratic equation y = a + bx + cx2 (where y is the elderly suicide rate, x is the population growth rate and a, b and c are constants) was conducted using data from the World Health Organization and the United Nations. RESULTS:There was a significant curvilinear (U-shaped curve) relationship between elderly suicide rates and average annual population growth rates fitting the above quadratic equation. CONCLUSIONS:A theoretical model with three sequential stages incorporating population growth, the elderly population size, the proportion of elderly in the general population, life expectancy and birth rates was proposed to explain the findings. Caution should be exercised in the application of this model because of the cross-sectional and ecological study design whereby the findings are subject to ecological fallacy and require rigourous testing in within-country longitudinal studies over time.

journal_name

Int Psychogeriatr

authors

Shah A

doi

10.1017/S1041610208007953

subject

Has Abstract

pub_date

2009-04-01 00:00:00

pages

379-83

issue

2

eissn

1041-6102

issn

1741-203X

pii

S1041610208007953

journal_volume

21

pub_type

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