Dataset Information

Racial-ethnic disparities in empirically-derived subtypes of subclinical psychosis among a U.S. sample of youths.

ABSTRACT: INTRODUCTION:Racial-ethnic minority status is a consistent risk factor for schizophrenia, with associations extending to bipolar disorder and subthreshold psychotic experiences. However, few epidemiologic studies have been conducted in the U.S., and evidence is inconsistent. Furthermore, no U.S. studies of youths have directly investigated the phenomenological overlap between schizophrenia and bipolar disorder. We aimed to do so at the subthreshold level in the Philadelphia Neurodevelopmental Cohort. METHODS:Participants included 6533 individuals, age 11-21years, from a community healthcare network. Latent class analysis was used to form subtypes of sub-psychosis based on 12 attenuated positive items and 7 mania items without duration criteria. Associations between race-ethnicity (non-Hispanic white, non-Hispanic black, Hispanic, "other") and sub-psychosis subtype were estimated using latent class regression. RESULTS:Four classes were identified: Sub-positive Only (13.4%), Mania Only (15.5%), Both (9.1%), and Neither (62.0%). Minority participants were generally more likely than non-Hispanic whites to belong to one of the three sub-psychosis classes compared to the Neither class. Associations for Hispanics and non-Hispanic blacks remained after adjustment for age, sex, and maternal education, and restriction to participants without significant physical health conditions. Racial-ethnic disparities were greater in magnitude for the two classes characterized by sub-positive symptoms, Sub-positive Only and Both, than for the Mania Only class. This pattern was statistically significant among non-Hispanic blacks. CONCLUSIONS:We found evidence for racial-ethnic disparities in empirically-derived subtypes of subthreshold psychosis, broadly defined, among U.S. youths. Further research is needed to determine whether these disparities persist to the clinical disorder level in adulthood.

SUBMITTER: Paksarian D

PROVIDER: S-EPMC4790463 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature

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Racial-ethnic disparities in empirically-derived subtypes of subclinical psychosis among a U.S. sample of youths.

Paksarian Diana D Merikangas Kathleen R KR Calkins Monica E ME Gur Raquel E RE

Schizophrenia research 20151218 1

<h4>Introduction</h4>Racial-ethnic minority status is a consistent risk factor for schizophrenia, with associations extending to bipolar disorder and subthreshold psychotic experiences. However, few epidemiologic studies have been conducted in the U.S., and evidence is inconsistent. Furthermore, no U.S. studies of youths have directly investigated the phenomenological overlap between schizophrenia and bipolar disorder. We aimed to do so at the subthreshold level in the Philadelphia Neurodevelopm ...[more]

PMID: 26711527

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Project description:OBJECTIVE:This study examined racial and ethnic differences in treatment outcomes among participants in a randomized controlled trial of an intervention for first-episode psychosis called NAVIGATE. METHODS:Secondary data analyses were conducted for participants randomly assigned to usual community care (N=181) and NAVIGATE (N=223). Generalized estimating equations assessed whether race and ethnicity were associated with psychiatric symptoms and service use (medication management, family psychoeducation, and individual therapy) over a 24-month treatment period, accounting for baseline symptoms, duration of untreated psychosis, and insurance status. RESULTS:Among persons in usual community care, non-Hispanic blacks scored significantly higher throughout treatment on measures of positive symptoms (?=2.15, p=.010), disorganized thoughts (?=1.15, p=.033), and uncontrolled hostility (?=.74, p=.027), compared with non-Hispanic whites, and non-Hispanic blacks were less likely than non-Hispanic whites to receive individual therapy (OR=.45, p=.001). Families of Hispanic participants in usual community care were less likely than non-Hispanic white families to receive family psychoeducation (OR=.20, p=.01). For NAVIGATE participants, race and ethnicity were not associated with differences in psychiatric symptoms over time; families of non-Hispanic black participants were less likely than those of non-Hispanic white participants to receive family psychoeducation (OR=.53, p=.009). Hispanic participants in NAVIGATE were more likely than non-Hispanic white participants to receive medication management (OR=2.93, p=.001). CONCLUSIONS:In usual community care, non-Hispanic blacks scored higher on measures of psychiatric symptoms and were less likely to receive important services, compared with non-Hispanic whites. In NAVIGATE, racial and ethnic differences in psychiatric symptoms were not evident, although non-Hispanic blacks were less likely than non-Hispanic whites to receive family psychoeducation.

Project description:Background/objectivesTo determine racial/ethnic disparities in weekly counts of new COVID-19 cases and deaths among nursing home residents or staff.DesignCross-sectional analysis of national nursing home COVID-19 reports linked to other data. Multivariable two-part models modeled disparities in count of cases or deaths, and logistic regressions modeled disparities in self-reported shortages in staff and personal protective equipment (PPE), across nursing home groups with varying proportions of racial/ethnic minority residents, defined as low-, medium-, medium-high-, and high-proportion groups.SettingA total of 12,576 nursing homes nationally.ParticipantsNone.InterventionNone.MeasurementsNumbers of incident COVID-19 confirmed cases among residents and staff, and incident COVID-19 related deaths among residents (primary outcomes); and nursing home reported shortages in staff and PPE (secondary outcomes). All outcomes were reported for the week of May 25, 2020.ResultsThe number of weekly new COVID-19 confirmed cases among residents ranged from an average of 0.4 cases per facility (standard deviation (SD) = 2.5) for the low-proportion group (93.0% had zero new cases) to 1.5 cases per facility (SD = 6.3) for the high-proportion group (78.9% had zero new cases). Multivariable regression estimated that compared with the low-proportion group, the likelihood of having at least one new resident case was 76% higher (odds ratio = 1.76; 95% confidence interval = 1.38-2.25; P = .000) for the high-proportion group. Similar across-facility disparities were found for the weekly count of new COVID-19 deaths among residents (ranging from 0.1 deaths per facility (SD = 1.1) for the low-proportion group to 0.4 deaths (SD = 2.0) for the high-proportion group) and in the weekly count of new COVID-19 confirmed cases among staff (ranging from 0.3 cases (SD = 1.4] to 1.3 cases (SD = 4.4) per facility). No substantial disparities in self-reported shortages of staff or PPE were found.ConclusionNursing homes caring for disproportionately more racial/ethnic minority residents reported more weekly new COVID-19 confirmed cases and/or deaths. Immediate actions are needed to address these system-level disparities.

Dataset Information

Racial-ethnic disparities in empirically-derived subtypes of subclinical psychosis among a U.S. sample of youths.

Publications

Racial-ethnic disparities in empirically-derived subtypes of subclinical psychosis among a U.S. sample of youths.

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