The Role of Depressive Symptoms in Suicide Attempt in Rural China

Negative Affectivity and Suicide Risk: The Buffering Role of Gratitude and Optimism in Spanish Adolescents

The role of optimism and gratitude in the link between negative affectivity and suicide risk (viz., depressive symptoms and suicidal ideation) was examined in a sample of 1401 Spanish adolescents. Overall, the results of a set of hierarchical regression analyses supported the prediction of optimism and gratitude as predictors of suicide risk. Moreover, we analyzed whether the negative affectivity optimism/gratitude interaction term explains the unique variance in depressive symptoms and suicidal ideation. The results show that optimism and gratitude buffered the association between negative affectivity and depressive symptoms/ suicidal ideation, indicating that among adolescents experiencing negative affectivity, those who presented a high level of optimism and gratitude reported a lower risk of suicide. Finally, the practical implications of these novel findings regarding the role of optimism and gratitude in preventing suicide risk among adolescents are discussed.

Towards Higher Psychometric Properties: Testing the Psychological Strain Scales with Larger Samples

This study aimed to further test the psychometric properties of the Psychological Strain Scales (PSS) with larger samples. A cluster sampling method was employed to recruit 13,250 college students from seven provinces in China. Descriptive statistics, item statistics, Cronbach's alpha, factor analysis, and correlation analysis were evaluated. Cronbach's alpha coefficient was 0.958 and Guttman's split-half coefficient was 0.866. All the item-total correlations were larger than 0.45 except one. Results from Exploratory Factor Analysis and Confirmatory Factor Analysis supported the four dimensions of psychological strains (value strain, aspiration strain, deprivation strain, and coping strain). The PSS was strongly correlated to the Depression, Anxiety, and Stress Scale (DASS-21), which was commonly used to measure risk for suicide and was predictive ofsuicidality as measured by the SBQ-R. The PSS was a self-report instrument with high reliability and validity which could be applied for extensive use in research to measure psychological strains.HighlightsThis is the first study testing the psychometric properties of the PSS in an unusually large sample.Confirmatory factor analysis was applied to provide empirical evidence to the four-factor structure of the PSS.Psychological strains were found to be significantly correlated with depression, anxiety, and stress symptoms and predictive of suicidality.

Suicide Attempt and Suicidal Drug Overdose in Chronic Obstructive Pulmonary Disease Patients With or Without Depression

BACKGROUND

To determine differences in the incidence and risks of suicide attempt (SA) and suicidal drug overdose (SDO) between chronic obstructive pulmonary disease (COPD) patients with and without comorbid depression by using data from Taiwan's National Health Insurance Research Database.

METHODS

We analyzed the data of patients aged ≥20 years who had received a COPD diagnosis between 2000 and 2012. These COPD patients were divided into those with and without depression, and they were compared against a cohort from the general population. We calculated adjusted hazard ratios and the corresponding 95% confidence intervals for SA and SDO in the three cohorts after adjustment for age, sex, and comorbidities.

RESULTS

Until the end of 2012, 5.81% of patients with COPD developed depression. The incidence of SA and SDO in COPD patients with and without depression was 29.7 and 4.69 per 10,000 person-years and 71.2 and 20.9 per 10,000 person-years, respectively. COPD patients with depression had 13.6- and 10.0-fold higher risks of SA and SDO, respectively, than did controls. Particularly, an increased risk of SA caused by the enhancement effects of depression on COPD was noted in patients aged less than 50 years.

CONCLUSION

SA and SDO risks are extremely high in Taiwanese COPD patients with depression. Our findings suggest that clinicians should be aware that for COPD patients with comorbid depression, prescribing a large amount of medications may be associated with SA risk through SDO.