After-School Supervision, Psychosocial Impact, and Adolescent Smoking and Alcohol Use in China

We examined effects of self-care after school hours and psychosocial factors on cigarette smoking and alcohol use among adolescents in China. Survey data were obtained from 4734 7th and 11th grade students from seven cities across China. Students were queried about the frequency and quantity of unsupervised self-care after school in an average week. Tobacco and alcohol usage were also obtained. Odds ratios were calculated to determine the strength of association between unsupervised self-care after school and substance use. Results indicated that the amount of self-care after-school (how many days and how many hours per week) was significantly associated with increased risk for smoking and alcohol use among Chinese adolescents. These associations remained significant even after controlling for anxiety, depressive symptoms, and peer influence. The interaction between unsupervised self-care after school and peer influence indicated that unsupervised self-care after school is a stronger risk factor for smoking among adolescents with pro-smoking friends. The findings suggest that substance use prevention programs for youth in China should try to enhance parental monitoring. As it may not be feasible for families to revert to a lifestyle that includes supervision by relatives, other approaches such as organized after-school care are worthy of consideration.     

The Role of Familial Incarceration and Ethnic Identity in Suicidal Ideation and Suicide Attempt: Findings from a Longitudinal Study of Latinx Young Adults in California

Suicide is a leading cause of death among young adults; however, contextual risks and cultural factors are rarely studied in the context of ethnic minority suicidal ideation (SI) and suicidal attempt (SA). This study assessed the association between familial incarceration and suicide behaviors and examined ethnic identity as a potential moderator. Data from a longitudinal study of health among Hispanics (n = 1,094) in California were used to test associations between familial incarceration, ethnic identity, and SA and SI, adjusting for demographic factors and covariates. Approximately 18% and 8% of respondents reported SI and SA, respectively. Compared to no incarceration, or the incarceration of a relative, parental incarceration was associated with higher odds (AOR: 2.09, 95% CI: 1.23–3.34) of SI whereas higher affective ethnic identity reduced the odds (AOR: 0.52, 95% CI: 0.31–0.89) of SA. Ethnic identity moderated the association between parental incarceration and SI (AOR: 0.33, 95% CI: 0.13–0.79). Incarceration of a family member can set the stage for exclusion from critical institutions and can have long‐term consequences for adult mental health. Promoting a positive ethnic identity may be a promising prevention strategy that could bolster resilience among at‐risk, urban minority youth.     

Homeless Youths and Young Adults in Los Angeles: Prevalence of Mental Health Problems and the Relationship Between Mental Health and Substance Abuse Disorders

Although understanding of the subsistence patterns, service utilization, and HIV-risk behaviors of homeless youths and young adults is increasing, relatively little is known about the epidemiology of mental health problems in this group or the relationships between mental health problems and substance use. This study measured symptoms of depression, low self-esteem, ADHD, suicidality, self-injurious behavior (SIB), and drug and alcohol use disorder in a sample of homeless youth and young adults living in Hollywood, CA. Results indicated extremely high prevalences of mental health problems, as compared with corresponding rates of mental health problems found among housed youths in previous studies. Prevalence of mental health problems differed by age and ethnicity. African Americans were at lower risk of suicidal thoughts and SIB than were those of other ethnicities. Older respondents and females were at increased risk of depressive symptoms, and younger respondents were at increased risk of SIB. Previous history of sexual abuse and/or assault was associated with increased risk of suicidality and SIB. Risk factors for drug abuse disorder included ethnicity other than African American, homelessness for 1 year or more, suicidality, SIB, depressive symptoms, and low self-esteem. Risk factors for alcohol abuse disorder included male gender, white ethnicity, homelessness for 1 year or more, suicidality, and SIB. Extremely high rates of mental health problems and substance abuse disorders in this sample suggest the need for street-based and nontraditional mental health services targeted toward these youths and young adults.     

Proactive Customer Service Performance: Relationships With Individual,Task, and Leadership Variables

Despite the increasing interest in specific forms of proactive employee behavior in domains such as career development and organizational change, little research has investigated proactive behavior in the realm of customer service. Based on a review of the literatures on proactive behavior, customer service, and job performance, this study investigated relationships between a relevant set of individual and situational predictor variables and proactive customer service performance (i.e., individual service employees' self-started, long-term-oriented, and persistent service behavior that goes beyond explicitly prescribed requirements). Field survey data from 186 supervisor-subordinate dyads working in a large financial services organization demonstrated that proactive service performance, as rated by supervisors, was factorially distinct from prescribed task performance. Multiple regression analysis revealed that proactive service performance was significantly and positively associated with employee ratings of trait personal initiative, affective organizational commitment, task complexity, and participative leadership. The task and leadership variables explained incremental variance in proactive service performance beyond the individual predictors.     

Diagnostic test evaluation of a nasal flow monitor for obstructive sleep apnea detection in sleep apnea research

In this diagnostic test evaluation of a nasal flow monitoring device for obstructive sleep apnea (OSA), 34 patients referred for polysomnography were studied at home for three consecutive nights with the monitor. The mean age of subjects (+/-SD) was 41.9+/-10.3 years, and their mean apnea-hypopnea index (AHI) was 31.5+/-27.2. The difference between the average AHI from three nights at home on the monitor and the polysomnogram (PSG) result was 1.8+/-17.1. The area under the receiver operating characteristic curve (AUC) for PSG AHI > or = 10 was .96. With a threshold AHI of 18 on the flow monitor, sensitivity was .92, specificity .86, positive predictive value .96, and negative predictive value .75. For detecting severe OSA (AHI > or = 30), the AUC was .85. With knowledge of appropriate thresholds and the pretest risk of OSA, the flow monitor can be used to detect or exclude OSA for sleep-related research, as well as to identify severe cases needing priority for further evaluation.