Prevalence of ADHD among Black Youth Compared to White, Latino and Asian Youth: A Meta-Analysis.

OBJECTIVE: To systematically review the prevalence of Attention Deficit Hyperactivity Disorder (ADHD) among Black children and adolescents compared to White, Latino and Asian children and adolescents. METHOD: Peer-reviewed articles were identified in seven databases and included if they reported prevalence of ADHD among Black children and adolescents living in a minority context and compared rates to at least one of White, Latino or Asian samples. A total of 7050 articles were retrieved and 155 articles were subjected to full evaluation. Twenty-three studies representing 26 independent samples were included. RESULTS: The pooled sample size was n = 218,445 (k = 26), n = 835,505 (k = 25), n = 493,417 (k = 24), and n = 66,413 (k = 7) of Black, White, Latino, and Asian participants, respectively. Pooled prevalence rate of ADHD was 15.9% (95%CI 11.6% - 20.7%) among Black children and adolescents, 16.6% (95%CI 11.6% - 22.2%) among Whites, 10.1% (95%CI 6.9% - 13.8%) among Latinos and 12.4% (95%CI 1.4% - 31.8%) among Asians. There was no significant difference in prevalence between ethnic groups, whereas both Black and White children and adolescents had marginally statistically significant higher prevalence than Asians. The results of a meta-regression analysis showed no moderating effects of the type of sample and the year of publication of studies. A significant publication bias was observed, suggesting that other moderators were not identified in the present systematic review. CONCLUSION: In contrast to the assertion in the DSM-5 that clinical identification among Black children and adolescents is lower than among White children and adolescents, the present meta-analysis suggests similar rates of ADHD among these two groups. The importance of considering cultural appropriateness of assessment tools and processes is emphasized.

Prevalence and Risk Factors Associated With Attention-Deficit/Hyperactivity Disorder Among US Black Individuals: A Systematic Review and Meta-analysis.

Importance: As stated in the DSM-5, it is generally reported that the prevalence of attention-deficit/hyperactivity disorder (ADHD) is lower among Black individuals compared with the general population. However, Black individuals living in countries where they are considered a minority population group (eg, in Northern America and Europe) are underrepresented in studies evaluating ADHD. Objective: To estimate the pooled prevalence of ADHD and identify associated risk factors among US Black individuals. Data Sources: This systematic review and meta-analysis identified peer-reviewed studies published until October 18, 2019, using the APA PsycInfo, MEDLINE, Embase, Cochrane CENTRAL, CINAHL, ERIC, and Education Source databases. Study Selection: Eligible trials were published in French or English, had empirical data on the prevalence of ADHD in samples or subsamples of Black people, and were conducted in countries with Black minority populations. All studies were assessed and passed quality evaluation. Data Extraction and Synthesis: The PRISMA guideline was used for extracting and reporting data. Random-effects meta-analyses were generated to estimate the prevalence of ADHD among Black individuals using the metafor package in R. Main Outcomes and Measures: Prevalence and risk factors associated with ADHD among Black individuals were identified. Results: A total of 24 independent samples and subsamples from 21 studies published between 1979 and 2020 (154 818 Black participants) were included in this systematic review and meta-analysis. All included studies were conducted in the US. Two studies were conducted assessing adults (aged 18 years or older), 8 assessing children (0-12 years), 1 assessing adolescents (aged 13-17 years), and 13 assessing both children and adolescents. The pooled prevalence of ADHD was 14.54% (95% CI, 10.64%-19.56%). In a narrative review of the studies in this analysis, some studies found risk factors associated with ADHD, such as sociodemographic characteristics (age, sex, race, and socioeconomic status), familial factors, environmental factors, and risk behaviors, but the data did not permit a moderation analysis to assess these findings in this study. Conclusions and Relevance: Contrary to what is stated in the DSM-5, the results of this systematic review and meta-analysis suggest that Black individuals are at higher risk for ADHD diagnoses than the general US population. These results highlight a need to increase ADHD assessment and monitoring among Black individuals from different social backgrounds. They also higlight the importance of establishing accurate diagnoses and culturally appropriate care.

Prevalence of symptoms of depression, anxiety, insomnia, posttraumatic stress disorder, and psychological distress among populations affected by the COVID-19 pandemic: A systematic review and meta-analysis.

OBJECTIVE: We conducted a systematic review and meta-analysis to estimate the pooled prevalence of depression, anxiety, insomnia, PTSD, and Psychological distress (PD) related to COVID-19 among affected populations. METHODS: We searched articles in Medline, Embase, APA PsycInfo, CINAHL, Scopus, and Web of Science. Random-effects meta-analyses on the proportions of individuals with symptoms of depression, anxiety, insomnia, PTSD, and PD were generated and between-group differences for gender, healthcare workers (HCWs), and regions where studies were conducted. RESULTS: A total of 2189 articles were screened, 136 full-text articles were assessed for eligibility. Fifty-five peer-reviewed studies met inclusion criteria for the meta-analysis (N=189,159). The prevalence of depression (k=46) was 15.97% (95%CI, 13.24-19.13). The prevalence of anxiety (k=54) was 15.15% (95%CI, 12.29-18.54). The prevalence of insomnia (k=14) was 23.87% (95%CI, 15.74-34.48). The prevalence of PTSD (k=13) was 21.94% (95%CI, 9.37-43.31). Finally, the prevalence of psychological distress (k=19) was 13.29% (95%CI, 8.80-19.57). Between-group differences were only found in HCWs (z=2.69, p < 0.05) who had a higher prevalence of insomnia than others. CONCLUSIONS: Findings suggest that the short-term mental health consequences of COVID-19 are equally high across affected countries, and across gender. However, reports of insomnia are significantly higher among HCWs than the general population.

Prevalence of mental health problems in populations affected by the Ebola virus disease: A systematic review and meta-analysis.

Studies have shown that, in addition to being associated with a high mortality rate, Ebola Virus Disease (EVD) is also related with mental health problems. This study aimed to determine prevalence of mental health problems and associated factors among survivors and individuals affected by EVD. A systematic review of peer-reviewed empirical studies was conducted using EMBASE, PubMed, PsycINFO and PsyARTICLES. A random effects meta-analysis was performed on the proportions of people diagnosed with depression after an EVD outbreak. Of 205 studies initially identified, 21 were included in the systematic review and 10 in the meta-analysis. Results indicated that EVD is associated with depression, anxiety, post-traumatic stress disorder, obsessive-compulsive disorder, among others. Results revealed that one person out of five affected to EVD has been diagnosed with depression (standardized mean difference 19.92%, 95% CI 10.43%; 34.70). The I2 provided evidence of heterogeneity in the results. This study demonstrated the evidence of the impact of EVD on the mental health of survivors and individuals affected by EVD. Further studies should consider the mental health consequences of EVD to plan culturally sensitive prevention and intervention programs based on the experience of communities affected by EVD.

Symptoms of posttraumatic stress disorder, depression, anxiety and other mental health problems following the 2010 earthquake in Haiti: A systematic review and meta-analysis.

BACKGROUND: The 2010 earthquake in Haiti caused significant human and material damages, thousands of deaths and injuries, and 1.5 million homeless. This systematic review and meta-analysis aims to synthesize research on the prevalence and factors associated with PTSD, depression, anxiety symptoms, and other mental health problems among survivors. METHODS: We searched six databases and retained 50 articles for the systematic review, 28 of which were included in three random effects meta-analyses on the prevalence of PTSD, depression, and anxiety symptoms in survivors. RESULTS: Following the earthquake, more than one out of four individuals (28.44%,CI 95%,17.68%-42.37%; k = 24) reported severe symptoms of PTSD, one out of three reported severe symptoms of depression (32.16%,CI 95%,23.60%-42.11%; K=14), and one out of five reported severe symptoms of anxiety (20.49%,CI 95%,15.74%-26.24%;k=5). Studies revealed important rates of other mental health problems (including psychological distress and disturbance, suicidal ideations, and increased alcohol consumption) in survivors. Females were 41.38% more likely than males to experience severe symptoms of PTSD (OR = 1.41,CI 95%,1.22-1.64). Time was a moderator for depression and anxiety but not for PTSD, while the average age of participants only moderated depression. LIMITATIONS: The studies included are observational and most used self-reported measures. CONCLUSIONS: In a global context where natural disasters tripled since 1980, this first systematic review showed that human and material damages associated with the earthquake were sufficiently traumatic to induce severe symptoms of PTSD, depression, anxiety, and other mental health problems. Clinical and research implications are discussed. PROSPERO REGISTRATION NUMBER: CRD42018115430.