Social correlates of youth suicide rates in the United States

The 1980 suicide rate of youths in the United States were found to be associated with three clusters of social variables: social integration, the age structure, and race/region. These associations also were found for older groups, suggesting similarities in the impact of social variables on regional suicide rates.     

Educational attainment and suicide rates in the United States

We examined the relationship between educational attainment and suicide rate in the United States for 2001. Suicide rates, adjusted for age, were compared with percentage of college graduates, median household income, and poverty in 50 states in 2001. The correlations of suicide rates with educational attainment and median household income were both negative and statistically significant. Poverty was not significantly related to suicide rates. We concluded that higher education and income were associated with a decrease in suicide rates in 2001. Data from other years require examination for this conclusion to be generalizable.     

State IQ and suicide rates in the United States

Previous findings pertaining to the direction (positive or negative) of the ecological correlation between intelligence and suicide rates in the USA have been conflicting. Using novel state IQ estimates, derived from the Scholastic Assessment Test, the American College Test, these tests combined, or the National Assessment of Educational Progress state scores, these estimates were not consistently associated to state suicide rates. Whereas ACT-derived state IQ was significantly positively correlated with suicide rates, the correlation with composite ACT-SAT-derived state IQ was significantly negative and with both SAT-derived and NAEP-derived state IQ also negative but not significant. Validity checks pointed to possible methodological problems with the state IQ estimates. Currently available estimates of state IQ, therefore, seem not appropriate to resolve the question of the direction of the ecological correlation of intelligence and suicide mortality across the USA.     

State IQ and elderly suicide rates in the United States

Paralleling previous findings with state suicide rates of the total population, the associations of state suicide rates of elderly persons with regional IQ estimates across the USA were inconsistent (positive, negative, or nil), depending on the source of available state IQ estimates used in the analysis. The implications of these findings and directions for further inquiry are discussed.     

Evidence for a positive ecological correlation of regional intelligence and suicide mortality in the United States during the early 20th century

Several contemporary cross-national and intranational geographic studies have reported positive ecological (group-level) associations of intelligence and suicide mortality. These findings are consistent with facts from suicide research and with an evolutionary view of suicidal behavior. The present research extended these accounts cross-temporally. Analysis of E. L. Thorndike's state-level personal quality scores and standardized birth rates of eminent persons, taken as proxy variables for regional intelligence, along with historical state suicide rates (1913-1924 and 1928-1932) showed that intelligence and suicide mortality across the U.S.A. were already clearly positively related during the early 20th century, suggesting time stability of the effect. Within the U.S.A., the effect is possibly due to state differences in the ethnic composition, which correspond to both suicide rates and intelligence proxies. It is argued that the most parsimonious interpretation of these ecological findings remains that they indeed reflect individual-level effects, that a positive link between intelligence and suicide is entirely compatible with positive overall links between intelligence and health and longevity, and that the ultimate explanative background for the positive link between intelligence and suicide may be provided through the framework of Rushton's differential K theory.     

Social Capital and Happiness in the United States

This paper explores the association between social capital and average happiness in the United States. Social capital is measured as a multidimensional concept consisting of social trust and two different indicators of sociability. In order to employ the variation both over time and across states, the data are organized in either a panel of nine US Census regions over the period 1983–1998 or in averages over this period in a cross-section of 48 states. The results show that social trust is positively associated with happiness while the potential effects of informal sociability at the level of society only appear significant in the regional estimates. The findings document the importance of social trust for average happiness but also hold more general implications for social capital theory.     

Educational attainment, intelligence, interstate migration, and suicide rates in the United States: rejoinder to Abel and Kruger (2005)

Abel and Kruger (2005) reported a negative association of educational attainment and suicide rate across the United States. Given strong links between intelligence and educational attainment, this appears to be inconsistent with positive associations of intelligence and suicide rate reported in several other geographical studies. However, the apparent inconsistencies may reflect interstate migration within the U.S. adult population. Testing this hypothesis showed that interstate migration was more strongly related to state suicide rates than educational attainment. Thus, the different results obtained by Abel and Kruger could reflect migration effects, which for the U.S. might render adult-age indicators of educational attainment inappropriate to reflect regional variation in intelligence by place of birth.     

Cross-national social ecology of intelligence and suicide prevalence: integration, refinement, and update of studies

This study integrates, refines, and updates previous findings pertaining to positive ecologic (population-level) associations between intelligence and suicide prevalence across nations by using corrected and revised national IQ estimates and, further, a quality-of-human-conditions index, both recently published by Lynn and Vanhanen. Across a global 85-nation sample of sex-specific total suicide rates and a Eurasian 48-nation sample of sex-specific elderly suicide rates, these were positively associated with updated national IQ estimates. The associations were stronger for the general population than for elderly persons, independent of the quality of human conditions, and notedly stronger in exponential fitting of suicide rates with national IQ than in linear fitting, thereby indicating that shifts or differences in national IQ correspond to proportional, not absolute, changes in suicide rates. Implications of these findings and the question of generalizability of such associations to the individual level are discussed.     

Regional intelligence and suicide rate in Denmark

Consistent with evidence from several recent geographical (cross-national and within-nation) studies (by Lester and by Voracek), a positive ecological (aggregate-level) correlation of regional intelligence and suicide rate was found across the seven major geographical regions of Denmark.     

A thematic comparison of suicide notes drawn from Northern Ireland and the United States

Suicide is a global concern hence cross-cultural research ought to be central to national suicide prevention strategies. This study sought to investigate suicide notes drawn from Northern Ireland and the United States as these countries have broadly similar suicide rates but markedly different cultures. A theoretical-conceptual analysis of sixty suicide notes drawn from these countries, matched for age and sex, was undertaken based on a thematic model of suicide developed by Leenaars (1996) across countries. The results suggested that there were more psychological commonalities than differences. Two differences emerged which suggested that aspects of the interpersonal components may be more salient in Northern Irish rather than American suicides. It is argued that more wide-ranging cross-cultural studies are required to enhance our ability to identify and predict those most at risk from suicide.     

The missing piece: a sociological autopsy of firearm suicide in the United States

Social, economic, violence, political, and gun access predictors of suicide and gun suicide were examined via sociological autopsy. The model predicting suicide rates overall had the best results, χ(2) (9, N=50)=5.279 (CMIN, the goodness of fit statistic that represents the minimum discrepancy between the unrestricted sample covariance matrix and the restricted covariance matrix) p=.809, [the goodness of fit statistic that represents the minimum discrepancy between the unrestricted sample covariance matrix and the restricted covariance matrix] indicating an excellent fit of the data and theoretical model. The model explained 76% of the variance in state suicide rates and was a significantly better predictor than one could expect by chance, F(6,43)=22.889, p<.001). All path coefficients were significant predictors of suicide with the exception of violence climate, which was not included. This study contributes to the theoretical knowledge by adding a comprehensive framework of analysis and model useful for prevention.     

Regional intelligence and suicide rate in Germany

Regional intelligence proxies (intranational average domain scores from the PISA 2000 and 2003 studies) were not reliably associated with the suicide rate across the states of Germany, thereby not replicating findings of a positive ecological correlation of regional intelligence and suicide prevalence from other within-nation studies (Austria, Belarus, the British Isles, Denmark, The Netherlands, and the USA).     

The influence of economic business cycles on United States suicide rates

A number of social science investigators have shown that a downturn in the economy leads to an increase in the suicide rate. However, the previous works on the subject are flawed by the fact that they employ years as their temporal unit of analysis. This time period is so large that it makes it difficult for investigators to precisely determine the length of the lag effect, while at the same time removing the autocorrelation effects. Also, although most works on suicide and the business cycle employ unemployment as a measure of a downturn in the business cycle, the average duration of unemployment represents a better measure for determining the social impact of an economic downturn. From 1947 to 1977 the average monthly duration of unemployment is statistically related to the suicide rate using multivariate time-series analysis. From 1910 to 1939 the Ayres business index, a surrogate measure for movement in the business cycle, is statistically related to the monthly suicide rate. An examination of the findings confirms that in most cases a downturn in the economy causes an increase in the suicide rate.     

A thematic comparison of suicide notes drawn from Northern Ireland and the United States

Suicide is a global concern hence cross-cultural research ought to be central to national suicide prevention strategies. This study sought to investigate suicide notes drawn from Northern Ireland and the United States as these countries have broadly similar suicide rates but markedly different cultures. A theoretical-conceptual analysis of sixty suicide notes drawn from these countries, matched for age and sex, was undertaken based on a thematic model of suicide developed by Leenaars (1996) across countries. The results suggested that there were more psychological commonalities than differences. Two differences emerged which suggested that aspects of the interpersonal components may be more salient in Northern Irish rather than American suicides. It is argued that more wide-ranging cross-cultural studies are required to enhance our ability to identify and predict those most at risk from suicide.     

Acculturation and suicide attitudes: a study of perceptions about suicide among a sample of Ghanaian immigrants in the United States

To investigate whether a relationship exists between acculturation and attitudes about suicide, 81 Ghanaian immigrants living in the U.S. who responded to a mail inquiry were selected to participate in the current study. This particular immigrant sample was chosen because although they represent a rapidly growing group in the U.S., they have been rarely studied. Respondents consisted of 42 women and 36 men (3 did not identify their sex), with a mean age of 29.5 yr. (SD = 10.6). Participants completed measures of acculturation and attitudes about suicide. Results indicated significant correlations between length of residency in the United States and negative suicide attitudes, and also between psychological acculturation and negative suicide attitudes. No significant relationship was found between behavioral acculturation and suicide attitudes. Furthermore, length of residency was a stronger predictor of suicide attitudes than other subjective measures of acculturation. Implications and suggestions for further research are discussed.     

Social Capital and Employment Outcomes of Zimbabwean Immigrants in the United States

Understanding of cultural and contextual factors that may influence settlement is vital for successful immigrant integration. This study explored the effect of social capital on employment outcomes of Zimbabwean immigrants (N?=?103) in the USA using a triangulation mixed methods design. Participants completed a survey that assessed their social capital and employment outcomes. Twelve participants were selected from those who had completed the survey to participate in in-depth interviews that asked about their life experiences. The results of a multiple logistic regression analysis identified network diversity as a significant inverse predictor of underemployment (p?=?0.04) controlling for educational attainment. Qualitative results elaborated on how social capital contributed to or minimized underemployment. Implications for practice are also suggested.