BMJ Open

Anchored in the eye of the storm: a qualitative study of resilient performance during the COVID-19 pandemic in Sweden in the context of the emergency department.

Källberg A, Göras C, Berg L, Bjurling-Sjöberg P

BMJ Open 15 (3) e094591 [2025-03-03; online 2025-03-03] Open Access

Category: Other Category: Social Science & Humanities Type: Journal article

Interhospital transports and mortality in patients with critical COVID-19: a single-centre cohort study.

Toss Agegård L, Berggren K, Cronhjort M, ..., Jonmarker S, Schandl AR

BMJ Open 15 (2) e090952 [2025-02-18; online 2025-02-18] Open Access

Year 2024

Parental experience with childhood COVID-19 vaccines and factors associated with parental hesitancy despite being vaccinated: findings of a cross-sectional analysis from Pakistan and implications for the future.

Salman M, Mallhi TH, Khan YH, ..., Meyer JC, Godman B

BMJ Open 14 (12) e086877 [2024-12-10; online 2024-12-10] Open Access

Category: Social Science & Humanities Category: Vaccines Type: Journal article

Impact of the COVID-19 pandemic on the National Telehealth Service for triage and referral in Sweden: a national retrospective observational study.

Berg J, Wretborn J

BMJ Open 14 (12) e091627 [2024-12-04; online 2024-12-04] Open Access

Category: Social Science & Humanities Type: Journal article

Completion and reporting of COVID-19 clinical trials registered on ClinicalTrials.gov during the first 6 months of the pandemic: cohort study.

Tornhammar P, Julner A, Al Moosawi N, ..., Andersson DP, Ueda P

BMJ Open 14 (11) e085906 [2024-11-14; online 2024-11-14] Open Access

Traditional, complementary and integrative medicine therapies for the treatment of mild/moderate acute COVID-19: protocol for a systematic review and network meta-analysis.

Li A, Guyatt G, Chu D, ..., Zhu J, Zhang Y

BMJ Open 14 (11) e088959 [2024-11-07; online 2024-11-07] Open Access

Category: Other Type: Journal article

Impact of the COVID-19 pandemic on initiation of antihypertensive drugs in Sweden: an interrupted time series study.

Tomas A, Wettermark B, Nyberg F, Hajiebrahimi M

BMJ Open 14 (10) e082209 [2024-10-16; online 2024-10-16] Open Access

Category: Health Funder: Forte Funder: Hjärt-Lungfonden Funder: NordForsk Funder: VR Type: Journal article

Effects of yoga compared with health promotion on health-related quality of life in adults with post-COVID-19 condition: protocol for a randomised controlled trial.

Brodén M, Welfordsson P, Niemi M, ..., Pattanadara V, Hallgren M

BMJ Open 14 (9) e085525 [2024-09-12; online 2024-09-12] Open Access

Category: Social Science & Humanities Funder: Forte Funder: VR Type: Journal article

Development, implementation and usefulness of an intervention to support psychological resilience during the COVID-19 pandemic: a study from a Swedish hospital based on interviews, documents and a survey.

Taxén M, Tolf S, Appelbom S, ..., Stenfors T, Mazzocato P

BMJ Open 14 (8) e081095 [2024-08-07; online 2024-08-07] Open Access

Category: Social Science & Humanities Type: Journal article

Primary healthcare in the aftermath of the COVID-19 pandemic: a qualitative interview study in Sweden.

Fernemark H, Hårdstedt M, Skagerström J, ..., Nilsen P, Schildmeijer KGI

BMJ Open 14 (7) e085527 [2024-07-27; online 2024-07-27] Open Access

Category: Social Science & Humanities Type: Journal article

'God protects us from death through faith and science': a qualitative study on the role of faith leaders in combating the COVID-19 pandemic and in building COVID-19 vaccine trust in Addis Ababa, Ethiopia.

Yibeltal K, Workneh F, Melesse H, ..., Berhane Y, Herzig van Wees S

BMJ Open 14 (4) e071566 [2024-04-22; online 2024-04-22] Open Access

Category: Social Science & Humanities Category: Vaccines Funder: Forte Type: Journal article

Colchicine for the treatment of patients with COVID-19: an updated systematic review and meta-analysis of randomised controlled trials.

Cheema HA, Jafar U, Shahid A, ..., Sah R, Lee KY

BMJ Open 14 (4) e074373 [2024-04-17; online 2024-04-17] Open Access

Category: Drug Discovery Category: Health Category: Other Type: Review

Impact of chronic oral glucocorticoid treatment on mortality in patients with COVID-19: analysis of a population-based cohort.

Einarsdottir MJ, Kibiwott Kirui B, Li H, ..., Nyberg F, Ragnarsson O

BMJ Open 14 (3) e080640 [2024-03-15; online 2024-03-15] Open Access

Category: Health Funder: Hjärt-Lungfonden Funder: VR Type: Journal article

Effects of COVID-19 contagion in cohabitants and family members on mental health and academic self-efficacy among university students in Sweden: a prospective longitudinal study.

Andersson C, Berman AH, Lindfors P, Bendtsen M

BMJ Open 14 (3) e077396 [2024-03-12; online 2024-03-12] Open Access

Category: Social Science & Humanities Funder: VR Type: Journal article

Impact of the pandemic and concomitant COVID-19 on the management and outcomes of middle cerebral artery strokes: a nationwide registry-based study.

Ghaith AK, El-Hajj VG, Atallah E, ..., Tawk RG, Jabbour P

BMJ Open 14 (2) e080738 [2024-02-27; online 2024-02-27] Open Access

Category: Health Topics: Register-based research Type: Journal article

Worry perception and its association with work conditions among healthcare workers during the first wave of the COVID-19 pandemic: a web-based multimethod survey at a university hospital in Sweden.

Alexiou E, Wijk H, Åkerström M, ..., Degl' Innocenti A, Ahlstrom L

BMJ Open 14 (2) e080248 [2024-02-20; online 2024-02-20] Open Access

Category: Social Science & Humanities Type: Journal article

Physical activity, acute severity and long-term consequences of COVID-19: an 18-month follow-up survey based on a Swedish national cohort.

Palstam A, Seljelid J, Persson HC, Sunnerhagen KS

BMJ Open 14 (1) e079927 [2024-01-04; online 2024-01-04] Open Access

Category: Health Category: Social Science & Humanities Type: Journal article

Year 2023

Undervalued essential work and lacking health literacy as determinants of COVID-19 infection risks: a qualitative interview study among foreign-born workers in Sweden.

Söderberg M, Magnusson M, Swaid J, Jakobsson K, Rosengren A

BMJ Open 13 (12) e069838 [2023-12-12; online 2023-12-12] Open Access

Category: Social Science & Humanities Funder: Forte Funder: VR Type: Journal article

Systematic review of seroprevalence of SARS-CoV-2 antibodies and appraisal of evidence, prior to the widespread introduction of vaccine programmes in the WHO European Region, January-December 2020.

Vaughan A, Duffell E, Freidl GS, ..., Pebody R, Keramarou M

BMJ Open 13 (11) e064240 [2023-11-06; online 2023-11-06]

Category: Serology Type: Journal article

Cost of the COVID-19 pandemic versus the cost-effectiveness of mitigation strategies in EU/UK/OECD: a systematic review.

Vardavas C, Zisis K, Nikitara K, ..., Deogan C, Suk JE

BMJ Open 13 (10) e077602 [2023-10-31; online 2023-10-31]

Category: Other Type: Journal article

Prevalence and impact of chronic dysglycaemia among patients with COVID-19 in Swedish intensive care units: a multicentre, retrospective cohort study.

Balintescu A, Rysz S, Hertz C, ..., Svensen C, Mårtensson J

BMJ Open 13 (9) e071330 [2023-09-19; online 2023-09-19] Open Access

COVID-19 pandemic hits differently: examining its consequences for women's livelihoods and healthcare access - a cross-sectional study in Kinshasa DRC.

Nkweleko Fankam F, Ugarte W, Akilimali P, Ewane Etah J, Åkerman E

BMJ Open 13 (9) e072869 [2023-09-07; online 2023-09-07] Open Access

Category: Social Science & Humanities Type: Journal article

Attachment and trauma-informed programme to support forcibly displaced parents of youth in Sweden: feasibility and preliminary outcomes of the eConnect Online programme.

Kristen A, Salari R, Moretti M, Osman F

BMJ Open 13 (8) e072368 [2023-08-07; online 2023-08-07] Open Access

Category: Other Category: Social Science & Humanities Type: Journal article

Comparing severe COVID-19 outcomes of first and second/third waves: a prospective single-centre cohort study of health-related quality of life and pulmonary outcomes 6 months after infection.

Darlington P, Roël M, Cronhjort M, ..., Joelsson-Alm E, Schandl A

BMJ Open 13 (7) e071394 [2023-07-17; online 2023-07-17] Open Access

Diabetes status and other factors as correlates of risk for thrombotic and thromboembolic events during SARS-CoV-2 infection: A nationwide retrospective case-control study using Cerner Real-World Data™.

Tallon EM, Gallagher MP, Staggs VS, ..., Shyu C, Clements MA

BMJ Open 13 (7) e071475 [2023-07-09; online 2023-07-09]

Drug interventions for prevention of COVID-19 progression to severe disease in outpatients: a systematic review with meta-analyses and trial sequential analyses (The LIVING Project).

Petersen JJ, Jørgensen CK, Faltermeier P, ..., Gluud C, Jakobsen JC

BMJ Open 13 (6) e064498 [2023-06-20; online 2023-06-20] Open Access

Category: Drug Discovery Category: Health Funder: VR Type: Journal article

Companion restrictions in the emergency department during COVID-19: physician perceptions from the Western Cape, South Africa.

Wiebe LE, Alvesson HM, Stassen W

BMJ Open 13 (5) e070982 [2023-05-05; online 2023-05-05] Open Access

Category: Social Science & Humanities Type: Journal article

Study protocol of a phase 2, randomised, placebo-controlled, double-blind, adaptive, parallel group clinical study to evaluate the efficacy and safety of recombinant alpha-1-microglobulin in subjects at high risk for acute kidney injury following open-chest cardiac surgery (AKITA trial).

Mazer CD, Siadati-Fini N, Boehm J, ..., Ronco C, Zarbock A

BMJ Open 13 (4) e068363 [2023-04-06; online 2023-04-06]

Inhaled ciclesonide in adults hospitalised with COVID-19: a randomised controlled open-label trial (HALT COVID-19).

Brodin D, Tornhammar P, Ueda P, ..., Blennow O, Andersson DP

BMJ Open 13 (2) e064374 [2023-02-22; online 2023-02-22]

Category: Drug Discovery Category: Health Type: Journal article

Year 2022

Experienced stigma and applied coping strategies during the COVID-19 pandemic in Germany: a mixed-methods study.

Peters L, Burkert S, Brenner C, Grüner B

BMJ Open 12 (8) e059472 [2022-08-24; online 2022-08-24]

Patient lead users experience of the COVID-19 pandemic: a qualitative interview study.

Jansson H, Stenfors T, Riggare S, Hasson H, Reinius M

BMJ Open 12 (8) e059003 [2022-08-17; online 2022-08-17]

Children in the household and risk of severe COVID-19 during the first three waves of the pandemic: a prospective registry-based cohort study of 1.5 million Swedish men.

Af Geijerstam A, Mehlig K, Hunsberger M, Åberg M, Lissner L

BMJ Open 12 (8) e063640 [2022-08-11; online 2022-08-11]

Compliance of healthcare workers with the infection prevention and control guidance in tertiary care hospitals: quantitative findings from an explanatory sequential mixed-methods study in Bangladesh.

Salwa M, Haque MA, Islam SS, ..., Khan MMH, Moniruzzaman S

BMJ Open 12 (6) e054837 [2022-06-13; online 2022-06-13]

I-SPY COVID adaptive platform trial for COVID-19 acute respiratory failure: rationale, design and operations.

Files DC, Matthay MA, Calfee CS, ..., ISPY COVID Adaptive Platform Trial Network , undefined

BMJ Open 12 (6) e060664 [2022-06-06; online 2022-06-06]

Venerable vulnerability or remarkable resilience? A prospective study of the impact of the first wave of the COVID-19 pandemic and quarantine measures on loneliness in Swedish older adults with home care.

Gustafsson PE, Nilsson I, San Sebastian M

BMJ Open 12 (5) e060209 [2022-05-24; online 2022-05-24]

Pandemic impact on patients with advanced non-COVID-19 illness and their family carers receiving specialised palliative home care: a qualitative study.

Nyblom S, Benkel I, Carling L, ..., Molander U, Öhlén J

BMJ Open 12 (5) e059577 [2022-05-19; online 2022-05-19]

Public risk perception and behaviours towards COVID-19 during the first and second waves in Nigeria: a secondary data analysis.

Ochu CL, Onoja M, Olatunji D, ..., Igumbor E, Ihekweazu C

BMJ Open 12 (4) e058747 [2022-04-01; online 2022-04-01]

Influence of the COVID-19 pandemic on abortions and births in Sweden: a mixed-methods study.

Rydelius J, Edalat M, Nyman V, ..., Milsom I, Hognert H

BMJ Open 12 (2) e054076 [2022-02-23; online 2022-02-23]

Association between pharmaceutical modulation of oestrogen in postmenopausal women in Sweden and death due to COVID-19: a cohort study.

Sund M, Fonseca-Rodríguez O, Josefsson A, Welen K, Fors Connolly AM

BMJ Open 12 (2) e053032 [2022-02-14; online 2022-02-14]

Category: Drug Discovery Category: Health Topics: Register-based research Type: Journal article

Intimate physical contact between people from different households during the COVID-19 pandemic: a mixed-methods study from a large, quasi-representative survey (Natsal-COVID).

Sonnenberg P, Menezes D, Freeman L, ..., Mitchell K, Field N

BMJ Open 12 (2) e055284 [2022-02-09; online 2022-02-09]

Working conditions in primary healthcare during the COVID-19 pandemic: an interview study with physicians in Sweden.

Fernemark H, Skagerström J, Seing I, ..., Schildmeijer K, Nilsen P

BMJ Open 12 (2) e055035 [2022-02-08; online 2022-02-08]

Category: Public Health Category: Social Science & Humanities Type: Review

Analytical observational study evaluating global pandemic preparedness and the effectiveness of early COVID-19 responses in Ethiopia, Nigeria, Singapore, South Korea, Sweden, Taiwan, UK and USA.

Nikolaeva A, Versnel J

BMJ Open 12 (2) e053374 [2022-02-02; online 2022-02-02]

Effectiveness of tobacco cessation interventions for different groups of tobacco users in Sweden: a study protocol for a national prospective cohort study.

Rasmussen M, Larsson M, Gilljam H, ..., Helgason AR, Tønnesen H

BMJ Open 12 (1) e053090 [2022-01-25; online 2022-01-25]

COVID-19 collateral damage-psychological burden and behavioural changes among older adults during the first outbreak in Stockholm, Sweden: a cross-sectional study.

Beridze G, Triolo F, Grande G, Fratiglioni L, Calderón-Larrañaga A

BMJ Open 12 (1) e058422 [2022-01-07; online 2022-01-07]

Informal caregiver support needs and burden: a survey in Lithuania.

Biliunaite I, Kazlauskas E, Sanderman R, Andersson G

BMJ Open 12 (1) e054607 [2022-01-04; online 2022-01-04]

Year 2021

Characteristics and outcomes of patients with COVID-19 with and without prevalent hypertension: a multinational cohort study.

Reyes C, Pistillo A, Fernández-Bertolín S, ..., Kostka K, Duarte-Salles T

BMJ Open 11 (12) e057632 [2021-12-22; online 2021-12-22]

Sleep and daytime problems during the COVID-19 pandemic and effects of coronavirus infection, confinement and financial suffering: a multinational survey using a harmonised questionnaire.

Partinen M, Holzinger B, Morin CM, ..., Wing Y, Bjorvatn B

BMJ Open 11 (12) e050672 [2021-12-13; online 2021-12-13]

Cohort study of the characteristics and outcomes in patients with COVID-19 and in-hospital cardiac arrest.

Holm A, Jerkeman M, Sultanian P, ..., Herlitz J, Rawshani A

BMJ Open 11 (11) e054943 [2021-11-30; online 2021-11-30]

Experience of the COVID-19 pandemic as lived by patients with hip and knee osteoarthritis: an Italian qualitative study.

Battista S, Dell'Isola A, Manoni M, ..., Palese A, Testa M

BMJ Open 11 (10) e053194 [2021-10-27; online 2021-10-27]

Brain MRI and neuropsychological findings at long-term follow-up after COVID-19 hospitalisation: an observational cohort study.

Hellgren L, Birberg Thornberg U, Samuelsson K, ..., Divanoglou A, Blystad I

BMJ Open 11 (10) e055164 [2021-10-27; online 2021-10-27]

Role and utility of COVID-19 laboratory testing in low-income and middle-income countries: protocol for rapid evidence synthesis.

Ouma OK, Ephraim K, Loyce N, ..., Ocan M, Obuku EA

BMJ Open 11 (10) e050296 [2021-10-18; online 2021-10-18]

Assessing relative COVID-19 mortality during the second wave: a prospective Swiss population-based study.

Siegfried S, Bopp M, Günthard H, ..., Crowther M, Hothorn T

BMJ Open 11 (10) e051164 [2021-10-04; online 2021-10-04]

Cross-sectional examination of 24-hour movement behaviours among 3- and 4-year-old children in urban and rural settings in low-income, middle-income and high-income countries: the SUNRISE study protocol

Okely T, Reilly JJ, Tremblay MS, ..., Wickramasinghe P, Widyastari DA

BMJ Open 11 (10) e049267 [2021-10-00; online 2021-10-25] Open Access

Diabetes, hypertension, body mass index, smoking and COVID-19-related mortality: a systematic review and meta-analysis of observational studies

Mahamat-Saleh Y, Fiolet T, Rebeaud ME, ..., Aune D, Severi G

BMJ Open 11 (10) e052777 [2021-10-00; online 2021-10-25] Open Access

COVID-19 in Pregnancy and Early Childhood (COPE): study protocol for a prospective, multicentre biobank, survey and database cohort study.

Carlsson Y, Bergman L, Zaigham M, ..., Sengpiel V, COPE study group

BMJ Open 11 (9) e049376 [2021-09-14; online 2021-09-14]

Category: Biochemistry Category: Health Type: Journal article

Assessing the capacity of symptom scores to predict COVID-19 positivity in Nigeria: a national derivation and validation cohort study.

Elimian KO, Aderinola O, Gibson J, ..., Igumbor E, Ihekweazu C

BMJ Open 11 (9) e049699 [2021-09-03; online 2021-09-03] Open Access

Association of cardiometabolic risk factors with hospitalisation or death due to COVID-19: population-based cohort study in Sweden (SCAPIS).

Tornhammar P, Jernberg T, Bergström G, ..., Andersson DP, Ueda P

BMJ Open 11 (9) e051359 [2021-09-02; online 2021-09-02] Open Access

Category: Health Funder: Hjärt-Lungfonden Funder: KAW/SciLifeLab National COVID program Funder: Vinnova Research Area: Biobanks for COVID-19 research Type: Journal article

Intermarriage and COVID-19 mortality among immigrants. A population-based cohort study from Sweden.

Aradhya S, Brandén M, Drefahl S, ..., Mussino E, Juárez SP

BMJ Open 11 (9) e048952 [2021-08-31; online 2021-08-31]

Correlates of intended COVID-19 vaccine acceptance across time and countries: results from a series of cross-sectional surveys.

Kerr JR, Schneider CR, Recchia G, ..., Freeman AL, van der Linden S

BMJ Open 11 (8) e048025 [2021-08-02; online 2021-08-02] Open Access

Swedish nationwide time series analysis of influenza and suicide deaths from 1910 to 1978.

Rück C, Mataix-Cols D, Malki K, ..., Runeson B, Sidorchuk A

BMJ Open 11 (7) e049302 [2021-07-07; online 2021-07-07] Open Access

Fitness, strength and severity of COVID-19: a prospective register study of 1 559 187 Swedish conscripts.

Af Geijerstam A, Mehlig K, Börjesson M, ..., Åberg M, Lissner L

BMJ Open 11 (7) e051316 [2021-07-05; online 2021-07-05] Open Access

Randomised, controlled, open label, multicentre clinical trial to explore safety and efficacy of hyperbaric oxygen for preventing ICU admission, morbidity and mortality in adult patients with COVID-19.

Kjellberg A, Douglas J, Pawlik MT, ..., Rodriguez-Wallberg KA, Lindholm P

BMJ Open 11 (7) e046738 [2021-07-05; online 2021-07-05]

Category: Drug Discovery Category: Health Type: Journal article

Prevalence and incidence of anti-SARS-CoV-2 antibodies among healthcare workers in Belgian hospitals before vaccination: a prospective cohort study.

Mortgat L, Verdonck K, Hutse V, ..., Desombere I, Duysburgh E

BMJ Open 11 (6) e050824 [2021-06-29; online 2021-06-29]

Category: Biochemistry Category: Health Type: Journal article

Everyday life in a Swedish nursing home during the COVID-19 pandemic: a qualitative interview study with persons 85 to 100 years.

Lood Q, Haak M, Dahlin-Ivanoff S

BMJ Open 11 (6) e048503 [2021-06-18; online 2021-06-18] Open Access

Public acceptance of COVID-19 vaccines: cross-national evidence on levels and individual-level predictors using observational data.

Lindholt MF, Jørgensen F, Bor A, Petersen MB

BMJ Open 11 (6) e048172 [2021-06-15; online 2021-06-15] Open Access

Cardiovascular-related deaths at the beginning of the COVID-19 outbreak: a prospective analysis based on the UK Biobank

Wang J, Zhu J, Yang H, ..., Fang F, Song H

BMJ Open 11 (6) e046931 [2021-06-00; online 2021-06-04]

Acuity level of care as a predictor of case fatality and prolonged hospital stay in patients with COVID-19: a hospital-based observational follow-up study from Pakistan.

Almas A, Mushtaq Z, Moller J

BMJ Open 11 (5) e045414 [2021-05-28; online 2021-05-28] Open Access

Household food insecurity and its association with self-reported male perpetration of intimate partner violence: a survey of two districts in central and western Uganda.

Awungafac G, Mugamba S, Nalugoda F, ..., Ekström AM, Kågesten A

BMJ Open 11 (3) e045427 [2021-03-31; online 2021-03-31] Open Access

Impact of COVID-19 pandemic on utilisation of healthcare services: a systematic review.

Moynihan R, Sanders S, Michaleff ZA, ..., Scott I, Albarqouni L

BMJ Open 11 (3) e045343 [2021-03-16; online 2021-03-16]

Type: Review

Assessing relative COVID-19 mortality: a Swiss population-based study.

Hothorn T, Bopp M, Günthard H, ..., Weibull CE, Crowther M

BMJ Open 11 (3) e042387 [2021-03-08; online 2021-03-08]

Association between cardiometabolic disease and severe COVID-19: a nationwide case-control study of patients requiring invasive mechanical ventilation.

Svensson P, Hofmann R, Häbel H, Jernberg T, Nordberg P

BMJ Open 11 (2) e044486 [2021-02-17; online 2021-02-17] Open Access

Year 2020

Development and external validation of a COVID-19 mortality risk prediction algorithm: a multicentre retrospective cohort study

Mei J, Hu W, Chen Q, ..., Yue J, Wang QL

BMJ Open 10 (12) e044028 [2020-12-00; online 2020-12-24]

Mental health of Urban Mothers (MUM) study: a multicentre randomised controlled trial, study protocol.

Schwank SE, Chung H, Hsu M, ..., Andersson E, Acharya G

BMJ Open 10 (11) e041133 [2020-11-27; online 2020-11-27]

COVID-19 case-fatality rate and demographic and socioeconomic influencers: worldwide spatial regression analysis based on country-level data.

Cao Y, Hiyoshi A, Montgomery S

BMJ Open 10 (11) e043560 [2020-11-03; online 2020-11-03]

Category: Other Category: Social Science & Humanities Type: Journal article

COVID-19 outbreak-related psychological distress among healthcare trainees: a cross-sectional study in China.

Wang Y, Li Y, Jiang J, ..., Zhang W, Song H

BMJ Open 10 (10) e041671 [2020-10-20; online 2020-10-20]

Category: Social Science & Humanities Type: Journal article

Exploring views and experiences of how infections are detected and managed in practice by nurses, care workers and manager's in nursing homes in England and Sweden: a survey protocol.

Carey N, Alkhamees N, Cox A, ..., Tingström P, Mold F

BMJ Open 10 (10) e038390 [2020-10-01; online 2020-10-01]

Category: Social Science & Humanities Type: Journal article