Faculty Bibliography

Suicide is the second leading cause of death among young people. Both mental illness and social factors are associated with suicide in adolescents, and youth with mental disorders often experience social deficits, which may compound risk. The cumulative effects of mental disorders and social factors on suicidal ideation and behaviors (SIB) in adolescents have not previously been explored. Adolescents 13-18 years of age (N = 6,447; 49% female, 65% non-Hispanic White) participated in the National Comorbidity Survey Replication Adolescent Supplement. Adolescents were interviewed to assess mental health diagnoses, history of SIB, and relationship quality. Parents completed self-reports about adolescent mental health and family characteristics. Logistic regression estimated associations of friend, sibling, and family relationships with 12-month SIB and lifetime suicide attempt (SA); associations between relationships, SIB, and SA were compared across classes of mental disorders. Friendship negativity (odds ratio [OR] = 1.20, 95% confidence interval (CI) [1.04, 1.40]), and family conflict (OR = 1.26, 95% CI [1.13, 1.41]), were positively associated with SIB, beyond the risk conferred by mental disorders, particularly mood disorders (OR = 4.75, 95% CI [3.20, 7.05]). Friendship positivity (OR = 0.89, 95% CI [0.80, 0.99]); sibling relationship positivity (OR = 0.79, 95% CI [0.68, 0.91]); family cohesion (OR = 0.77, 95% CI [0.69, 0.87]); maternal care (OR = 0.76, 95% CI [0.69, 0.84]); and paternal care (OR = 0.68, 95% CI [0.59, 0.78]), were inversely associated with SIB. Sibling relationship positivity, family conflict, and paternal care were similarly associated with SA. Self-reported adolescent friend and family relationship characteristics are associated with SIB and SA beyond the risk conferred by mental disorders. This suggests that perceptions of friend and family relationships may be an appropriate target to reduce suicide risk among adolescents.

Over the past two decades, research on pediatric bipolar disorder has grown geometrically. The diagnosis of pediatric bipolar disorder was met with enthusiasm, which in healthy doses catalyzed change, and skepticism, which in good measure pushes for rigor. Skepticism led to productive questions about the phenomenology of pediatric bipolar disorder and how best to diagnose and treat it. With regard to prevalence, key questions included whether it was increasing over time, and whether it was limited to the United States. In 2011, we published a meta-analysis addressing the prevalence questions; results indicated that bipolar disorder manifested at statistically indistinguishable rates in youth community samples across the world. In their recent paper, Parry et al. examine the studies included in the 2011 meta-analysis using a qualitative approach. Their opinion piece represents a step backwards; every study has shortcomings, but in focusing on a dozen individual studies, Parry et al. fail to take into account the preponderance of evidence - literally thousands of articles across countries, cohorts and methodologies - that support the existence of bipolar disorder in both prepubescent youth and adolescents. This commentary addresses misperceptions regarding the diagnosis of bipolar disorder in youth, particularly with regard to cross-informant agreement, to present converging data from international sources regarding the onset of bipolar disorder in childhood, and to correct the false claim that pediatric bipolar disorder is controversial. As clinicians and researchers, we have an obligation to do what we can to improve the lives of youth affected by mental illness. Denying the existence of a serious mood disorder will not serve the best interests of young people and will perpetuate the long delays many experience before getting an accurate diagnosis, appropriate treatment, and a fair chance at a good quality of life.

OBJECTIVE:Mood and anxiety disorders typically begin in adolescence or early adulthood, but those at the age of highest risk are among those least likely to access mental health services. However, they may be more likely than other demographic groups to seek help online. The goal of the present study was to investigate the online help- and information-seeking activity of young people newly diagnosed with mood and anxiety disorders in order to better understand how digital resources might serve this population. METHOD:Participants, aged 15 to 35, with a diagnosis of a mood or anxiety disorder were eligible if they had received their first mental health diagnosis within 24 months. Participants were interviewed with the Pathways to Care Questionnaire, which inquires about online activity prior to one's first interaction with mental healthcare providers. RESULTS:Forty people participated (depression n = 30, bipolar disorder n = 5, generalized anxiety disorder n = 5); average age 21 years (SD=3.2), 60% female. Eighty-one percent reported seeking help and/or information about their symptoms online. The gap between symptom onset and in-person help seeking was 91.90 weeks (SD=133.7). Most participants (85%) reported they would be open to communicating with a mental health professional online. CONCLUSION:A majority of young people experiencing clinically-significant symptoms seek help online. However, the gap between symptom onset and treatment initiation remains unacceptably long. Better strategies are needed to translate young people's interest in online resources into meaningful care, whether through web-based services or facilitated pathways to traditional treatment.

BACKGROUND:Bipolar Disorder (BD) is a recurrent illness associated with high morbidity and mortality. The frequency of mood episode recurrence in BD is highly heterogeneous and significantly impacts the person's psychosocial functioning and well-being. Understanding the factors associated with mood recurrences could inform the prognosis and treatment. The objective of this review is to summarize the literature on factors, present during childhood, that influence recurrence. METHODOLOGY:A systematic review of PubMed (1946-2017) and PsycINFO (1884-2017) databases was conducted to identify candidate studies. Search terms included bipolar disorder, episodes, predictors, recurrences, and course. Study characteristics, risk for bias, and factors associated with recurrence were coded by two raters according to predetermined criteria. RESULTS:Twenty child studies and 28 adult studies that retrospectively evaluated childhood variables associated with mood recurrences were included. Early age of onset, low socioeconomic status, comorbid disorders, inter-episode subsyndromal mood symptoms, BD-I/II subtypes, presence of stressors, and family history of BD were associated with higher number of recurrences. LIMITATIONS:Risk factors and mood recurrences were assessed and defined in different ways, limiting generalizability. CONCLUSION:Multiple factors are associated with increased risk of mood episode recurrence in BD. Interventions targeting modifiable factors could reduce the impact of BD. For example, treatment of comorbid disorders and subsyndromal mood symptoms, coupled with appropriate cognitive behavioral and family-focused therapies could ameliorate risk related to many clinical factors. When coupled with social services to address environmental factors, the number of episodes could be reduced and the course of BD significantly improved.

Depression is the leading cause of disability and a major cause of morbidity worldwide, with societal costs now upwards of 1 trillion dollars across the globe. Hence, extending current efforts to augment prevention outcomes is consistent with global public health interests. Although many prevention programs have been developed and have demonstrated efficacy, studies have yet to demonstrate that CBT is effective in preventing symptoms in populations at risk for developing depression induced by pharmacological substances. Using a randomized, controlled design, this pilot study reports on the feasibility and preliminary effects of a novel, guided symptom exposure augmented cognitive behavioral prevention intervention (GSE-CBT) in a sample diagnosed with Hepatitis C at risk for developing medication induced depression. Results demonstrated that the guided symptom exposure augmented CBT (GSE-CBT) was feasible in this population and was delivered with high integrity. Although not statistically different, we observed a pattern of lower depression levels in the GSE-CBT group versus those in the control group throughout. This pilot study demonstrates that a psychosocial prevention intervention is feasible for use in patients at risk for developing pharmacologically induced depression and that a guided symptom exposure augmented CBT protocol has the potential to prevent symptoms of depression that develop as a side effect to taking these medications. Results are preliminary and future studies should use larger samples and test the intervention in other populations.

OBJECTIVES/OBJECTIVE:To clarify the clinical features preceding the onset of bipolar disorder (BD) has become a public health priority for the prevention of high morbidity and mortality. BD remains frequently under- or misdiagnosed, and under- or mistreated, often for years. METHODS:We assessed the predictive value of precursors and prodromes of BD. We assessed precursors of first-lifetime manic or hypomanic episodes with/without mixed features in retrospective and prospective studies. The task force evaluated and summarized separately assessments of familial risk, premorbid personality traits, retrospective, and prospective studies. RESULTS:Cyclothymic features, a family history of BD, retrospectively reported attenuated manic symptoms, prospectively identified subthreshold symptoms of hypomania, recurrence of depression, panic anxiety and psychotic features, have been identified as clinical precursors of BD. The prodromal symptoms like [hypo]mania often appears to be long enough to encourage early identification and timely intervention. CONCLUSIONS:The predictive value of any risk factor identified remains largely unknown. Prospective controlled studies are urgently needed for prevention and effective treatment.

OBJECTIVE:Most studies of pediatric bipolar disorder (BP) combine youth who have manic symptoms, but do not meet criteria for BP I/II, into one "not otherwise specified" (NOS) group. Consequently, little is known about how youth with cyclothymic disorder (CycD) differ from youth with BP NOS. The objective of this study was to determine whether youth with a research diagnosis of CycD (RDCyc) differ from youth with operationalized BP NOS. METHOD:Participants from the Course and Outcome of Bipolar Youth study were evaluated to determine whether they met RDCyc criteria. Characteristics of RDCyc youth and BP NOS youth were compared at baseline, and over eight-years follow-up. RESULTS:Of 154 youth (average age 11.96 (3.3), 42% female), 29 met RDCyc criteria. RDCyc youth were younger (p = .04) at baseline. Over follow-up, RDCyc youth were more likely to have a disruptive behavior disorder (p = .01), and were more likely to experience irritability (p = .03), mood reactivity (p = .02), and rejection sensitivity (p = .03). BP NOS youth were more likely to develop hypomania (p = .02), or depression (p = .02), and tended to have mood episodes earlier in the eight-year follow-up period. LIMITATIONS:RDCyc diagnoses were made retrospectively and followed stringent criteria, which may highlight differences that, under typical clinical conditions and more vague criteria, would not be evident. CONCLUSION:There were few differences between RDCyc and BP NOS youth. However, the ways in which the groups diverged could have implications; chronic subsyndromal mood symptoms may portend a severe, but ultimately non-bipolar, course. Longer follow-up is necessary to determine the trajectory and outcomes of CycD symptoms.

Background/UNASSIGNED:Late adolescence and early adulthood is a period of highest incidence for onset of mental health problems. Transition to college environment has been associated with many risk factors such as the initial disruption-and subsequent irregularity-of the student's sleep and activity schedule. We tested the feasibility of using blue blocking glasses (BBG) at night in first year higher education students with sleep complaints, to obtain preliminary evidence for the impact of BBG on sleep, activity, and mood. Methods/UNASSIGNED:Participants were 13 first year undergraduates (from 10 different academic courses) living on campus for the first time with sleep complaints/disorders confirmed at screening via the Duke Structured Interview Schedule for Sleep Disorders. We used a 2-week, balanced crossover design (BBG vs placebo glasses; participants were unaware which was the active intervention) with computer-generated random allocation. Exploratory analyses provided descriptive and frequency summaries to evaluate feasibility of the intervention. Results/UNASSIGNED:Preliminary evidence supports the feasibility and acceptability of the trial; almost all screened participants consented and completed the protocol with high adherence; missing data were negligible. Additionally, the effectiveness of BBGs to enhance sleep, mood, and activity levels in young adults was supported. Conclusions/UNASSIGNED:The results of this feasibility trial suggest that BBG have potential as an inexpensive and feasible intervention for reducing sleep and circadian dysregulation in young adult students. A larger trial, following this successfully implemented protocol, is necessary to fully test the efficacy of BBG.

BACKGROUND:There is substantial evidence that bipolar disorder (BD) manifests on a spectrum rather than as a categorical condition. Detection of people with subthreshold manifestations of BD is therefore important. The Hypomania Checklist-32 (HCL-32) was developed as a tool to identify such people. PURPOSE:The aims of this paper were to: (1) investigate the factor structure of HCL-32; (2) determine whether the HCL-32 can discriminate between mood disorder subtypes; and (3) assess the familial aggregation and cross-aggregation of hypomanic symptoms assessed on the HCL with BD. PROCEDURES:Ninety-six probands recruited from the community and 154 of their adult first-degree relatives completed the HCL-32. Diagnosis was based on semi-structured interviews and family history reports. Explanatory factor analysis and mixed effects linear regression models were used. FINDINGS:A four-factor ("Activity/Increased energy," "Distractibility/Irritability", "Novelty seeking/Disinhibition, "Substance use") solution fit the HCL-32, explaining 11.1% of the total variance. The Distractibility/Irritability score was elevated among those with BP-I and BP-II, compared to those with depression and no mood disorders. Higher HCL-32 scores were associated with increased risk of BD-I (OR = 1.22, 95%CI 1.14-1.30). The "Distractibility/Irritability" score was transmitted within families (β = 0.15, p = 0.040). However, there was no familial cross-aggregation between mood disorders and the 4 HCL factors. CONCLUSIONS:Our findings suggest that the HCL-32 discriminates the mood disorder subtypes, is familial and may provide a dimensional index of propensity to BD. Future studies should explore the heritability of symptoms, rather than focusing on diagnoses.