Table 1 Characteristics of included systematic reviews
Author, year | Design | Timeframe covered by bibliographic search | Design of included studies | Population / comparator | Countries | Effect size estimation methods | Number of included Studies | Outcomes |
|---|---|---|---|---|---|---|---|---|
Ceban 2021 | Systematic review with meta-analysis | From inception to February 1, 2021 | Case-control and cohort studies | People with a mood disorder / people without mood disorders | USA, South Korea, Spain, Italy, Turkey, UK, Israel | Random effect model pooling adjusted and crude ORs. Preference given to adjusted ORs when available. Subgroups analyses according to adjustment status | 21 (15 aOR, 6 crude ORs) | 1- Susceptibility (laboratory testing, ICD-10, EHR, and/or clinical judgment) 2- Hospitalization 3- Occurrence of severe events (includes oxygen therapy) 4- Death |
Fond 2021 | Systematic review with meta-analysis | From inception to February 12, 2021 | Population-based cohort studies based on medico-administrative health databases or a health care data warehouse | People with any mental disorder (includes substance abuse disorders and ADHD) / people without a mental disorder | Denmark, France, Israel, South Korea, Spain, UK, USA | Random effects models, separate pooling of aORs and crude ORs | 21 | 1- Mortality 2- ICU admission |
Fornaro 2021 | Scoping review (no meta-analysis) | From inception up to April 24, 2021 | Cross-sectional, prospective cohort, retrospective cohort studies, case reports/series | People with Bipolar disorder / NA | Italy, UK, Australia, USA, the Netherlands, India, China | 14 | Identified themes: 1- Impact of COVID-19-related stressors on BD 2- Impact of COVID-19 on mental health service utilization among people with BD 3- Impact of BD on the risk of acquiring SARS-cov-2 infection 4- Engagement in preventative behaviors among people with BD | |
Karaoulanis 2021 | Systematic review without meta-analysis | From inception up to 21 March 2021 | Unreported | People with Schizophrenia / people without Schizophrenia | USA, Korea, France, Israel | 7 | 1- Susceptibility (being infected) 2- Mortality | |
Lemieux 2020 | Rapid review | From December 2019 up 18 August 2020 | Opinion pieces by experts (editorials, letters to the editor, position papers and other correspondences), rapid literature reviews, narrative (i.e., Non-systematic) literature reviews, empirical studies (surveys and descriptive/case studies) | People with mental illness in secure settings / NA | USA, China, Italy, UK, France, Germany, Ireland, Singapore, Brazil, Canada, Spain, Australia, India, Israel, Poland, New Zealand, South Korea, Scandinavia, Switzerland | 69 | Narrative review on strategies, challenges and recommendations for dealing with the COVID-19 outbreak in secure settings for persons with mental illness | |
Liu 2021 | Systematic review with meta-analysis | From inception to January 16, 2021 | Cohort, case-control, cross-sectional studies and case series | People with mental disorders (includes sleep disorders and ADHD) / people without mental disorders | USA, Italy, Korea, UK, China, Iran, Brazil, Spain, Turkey, Israel, Switzerland, the Netherlands, Denmark, France, Belgium, Sweden, Russia, Peru, Germany, Malaysia, Poland | Random effect models pooling adjusted and crude ORs. Subgroups analyses according to adjustment status for ‘any mental disorder’ population only | 149 | 1- Susceptibility (positive laboratory results, diagnosis in conjunction with clinical presentation) 2- Illness severity (hospitalization, ICU admission, or requirement for other special treatment (e.g., oxygen therapy, mechanical ventilator, extracorporeal membrane oxygenation, and cardiopulmonary resuscitation)) 3- Death |
Murphy 2021 | Scoping review | From 1 January to 31 December 2020 | Primary research papers including qualitative, quantitative and mixed methods study designs | People with mental disorders / NA | Italy, USA, China, Canada, Germany, Spain, UK, Ireland, Australia, India, Switzerland, France, Iran, Turkey, Poland, Pakistan, Bosnia and Herzegovina | 30 | Narrative review of factors influencing health outcomes in people with pre-existing mental health conditions during the pandemic; impact of the pandemic on the health of people with pre-existing mental health conditions; Strategies or measure to support people with pre-existing mental health conditions during the pandemic | |
Toubasi 2021 | Systematic review with meta-analysis | From inception to 15 February 2021 | Cohort, case control | People with mental disorders / people without mental disorders | UK, Japan, South Korea, France, Scotland, Israel, USA | Random effects models, pooling both adjusted and crude ORs. Sensitivity analysis including aOR only | 16 (aOR: 5) | 1- Death or Severe illness (ICU admission and ventilation) |
Vai 2021 | Systematic review with meta-analysis | From 1 January 2020 to 5 March 2021 | Cross-sectional, longitudinal studies | People with mental disorders (includes substance use disorders and intellectual disabilities)/ people without mental disorders | UK, Japan, South Korea, France, Scotland, Sweden, USA | Random effects models pooling crude ORs. Sensitivity analysis polling aORs only. | 23 | 1- Death 2- Hospitalization 3- ICU admission |