Associations between Suicidal Ideation and Relatives' Physical and Mental Health among Community Residents: Differences between Family Members and Lineal Consanguinity

Suicide Rates and Risks Across U.S. Industries: A 29-Year Population-Based Survey

OBJECTIVE

Suicide rates in the working-age U.S. population have increased by over 40% in the last two decades. Although suicide may be linked with characteristics of workplaces and their industries, few studies have reported industry-level suicide rates. No study has reported suicide rates by industry using nationally representative data. This study estimates suicide risks across industries in the U.S. working population.

METHODS

Industry-level estimates of suicide risks require substantial data; we combined 29 years of U.S. suicide data using the National Health Interview Survey (NHIS)-Mortality Linked data from 1986 through 2014, with mortality follow-up through 2015. We conducted survey-weighted Poisson regression analyses to estimate suicide mortality rates and rate ratios across all populations and stratified by gender. All analyses were adjusted first for age, and then for age, employment status, marital status, race/ethnicity, and rurality/urbanicity (demographic-adjusted). Rate ratios compared results for workers in each industry to those for all industries, accounting for the NHIS survey design.

RESULTS

A total of 1,943 suicide deaths were recorded. Age-adjusted suicide rates per 100,000 were highest in the furniture, lumber, and wood industry group (29.3), the fabricated metal industry (26.3), and mining (25.8). Demographic-adjusted rates were higher among men than women in most industries. Demographic-adjusted rate ratios were significantly elevated in the furniture, lumber, and wood industries (Rate Ratio, RR = 1.60, 95% confidence interval, CI = 1.18-2.18); chemicals and allied products (RR = 1.49, 95%CI = 1.04-2.13); and construction (RR = 1.21, 95% CI = 1.03-1.41).

CONCLUSION

Several industries had significantly high suicide rates. Suicide prevention efforts may be particularly useful for workers in those industries.

Five-Factor Personality Dimensions Mediated the Relationship between Parents' Parenting Style Differences and Mental Health among Medical University Students

BACKGROUND

Previous studies have identified the relationships between parental parenting style, personality, and mental health. However, the interactive influences between mother's and father's parenting styles on personality have been examined less often. To fill the gaps, the first aim of this study was to build the relationships between parental parenting style differences (PDs) and five-factor personality dimensions. The second aim was to test the mediating effect of five-factor personality dimensions on the relationships between parental parenting style differences and mental health.

METHODS

This is a cross-sectional study conducted among medical university students, and 2583 valid participants were analyzed. Mental health was measured by the Kessler-10 scale. The Chinese Big Five Personality Inventory brief version (CBF-PI-B) was used to access five-factor personality dimensions. PD was calculated by the short form of Egna Minnen av Barndoms Uppfostran. Linear regressions were conducted to analyze the associations between PD and five-factor personality dimensions. The SPSS macros program (PROCESS v3.3) was performed to test the mediating effect of five-factor personality dimensions on the associations between PD and mental health.

RESULTS

Linear regressions found that worse mental health was positively associated with PD (β = 0.15, p < 0.001), higher neuroticism (β = 0.61, p < 0.001), lower conscientiousness (β = -0.11, p < 0.001), lower agreeableness (β = -0.10, p < 0.01), and lower openness (β = -0.05, p < 0.05). The results also supported that PD was positively associated with lower conscientiousness (β = -0.15, p < 0.01), lower agreeableness (β = -0.09, p < 0.001), lower openness (β = -0.15, p < 0.001), and lower extraversion (β = -0.08, p < 0.001), respectively. The mediating effect of agreeableness or openness was supported for the relationships between PD and mental health.

CONCLUSION

These findings remind us of the importance of consistent parenting styles between mother and father, and they also can be translated into practices to improve mental health among medical university students.