A replication of the relationship between elderly suicide rates and the human development index in a cross-national study

被引:7
作者
Shah, Ajit [1 ,2 ]
机构
[1] W London Mental Hlth NHS Trust, John Connolly Unit, Southall UB1 3EU, Middx, England
[2] Univ Cent Lancashire, Int Sch Communities Rights & Inclus, Preston PR1 2HE, Lancs, England
关键词
elderly suicides; life expectancy; socioeconomic status; educational status; EPIDEMIOLOGIC TRANSITION; SOCIOECONOMIC-STATUS; AGE; TRENDS; COUNTRIES; WORLD; ASSOCIATION; PROVISION; MORTALITY; ENGLAND;
D O I
10.1017/S1041610210001110
中图分类号
B849 [应用心理学];
学科分类号
040203 ;
摘要
Background: A recent cross-national study demonstrated a curvilinear (inverted U-shaped curve) between elderly male suicide rates and the Human Development Index (HDI) fitting the quadratic equation y = a + bx - cx(2) where y is the elderly male suicide rate, x is the HDI and a, b and c are constants). This study used only one-year cross-sectional data on suicide rates, and suicide rates can randomly fluctuate year on year. Methods: A study designed to replicate this curvilinear relationship between elderly suicide rates and the HDI was undertaken by: (i) using one-year average of five years data on suicide rates; and (ii) using more recent data on both elderly suicide rates than used in the previous study. Data were ascertained from the World Health Organization and the United Nations. Results: There was a significant curvilinear (inverted U-shaped curve) relationship between suicide rates in males aged 65-74 years, males aged 75+ years, females aged 65-74 years and the HDI fitting the quadratic equation y = a + bx - cx(2). A similar curvilinear relationship was observed in females aged 75+ years, but the significance level only approached 0.05 level. Conclusions: The replication of the curvilinear (inverted U-shaped curve) relationship between elderly suicide rates and the HDI by using one-year average of five years data on suicide rates suggests that the observed relationship is robust and accurate.
引用
收藏
页码:727 / 732
页数:6
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