Statistics & Research Methods

Effectiveness of linkage to care and prevention interventions following HIV self-testing: a global systematic review and meta-analysis protocol
Luchuo Engelbert Bain, Hubert Amu, Robert Kokou Dowou, Peter Memiah, Valirie Ndip Agbor

BMJ Open Sep 2022, 12 (9) e055688; DOI: 10.1136/bmjopen-2021-055688
Identifying potential biases in code sequences in primary care electronic healthcare records: a retrospective cohort study of the determinants of code frequency
Thomas Beaney, Jonathan Clarke, David Salman, Thomas Woodcock, Azeem Majeed, Mauricio Barahona, Paul Aylin

BMJ Open Sep 2023, 13 (9) e072884; DOI: 10.1136/bmjopen-2023-072884
Development and validation of a product acceptability questionnaire for intranasal Q-Griffithsin COVID-19 prophylaxis (SPRAY PAL)
Elizabeth Cash, Kailyn Deitz, Kevin L Potts, Henry W Nabeta, Maryam Zahin, Shesh N Rai, Gerald W Dryden, Kenneth E Palmer

BMJ Open Sep 2023, 13 (9) e073735; DOI: 10.1136/bmjopen-2023-073735
Predictors of compliance with higher dose omega-3 fatty acid supplementation during pregnancy and implications for the risk of prematurity: exploratory analysis of the ORIP randomised trial
Thomas R Sullivan, Lisa N Yelland, Robert A Gibson, Sagar K Thakkar, Fang Huang, Karen P Best, Surabhi Devaraj, Irma Silva Zolezzi, Maria Makrides

BMJ Open Sep 2023, 13 (9) e076507; DOI: 10.1136/bmjopen-2023-076507
Is extending eligibility for adult social care better than investing more in existing users in England? A cross-sectional evidence for multiple financial years
Francesco Longo, Karl Claxton, James Lomas, Stephen Martin

BMJ Open Sep 2023, 13 (9) e070833; DOI: 10.1136/bmjopen-2022-070833
Development of the TrAnsparent ReportinG of observational studies Emulating a Target trial (TARGET) guideline
Harrison J Hansford, Aidan G Cashin, Matthew D Jones, Sonja A Swanson, Nazrul Islam, Issa J Dahabreh, Barbra A Dickerman, Matthias Egger, Xavier Garcia-Albeniz, Robert M Golub, Sara Lodi, Margarita Moreno-Betancur, Sallie-Anne Pearson, Sebastian Schneeweiss, Jonathan Sterne, Melissa K Sharp, Elizabeth A Stuart, Miguel A Hernan, Hopin Lee, James H McAuley

BMJ Open Sep 2023, 13 (9) e074626; DOI: 10.1136/bmjopen-2023-074626
Did implementation of no-fault auto-insurance in British Columbia, Canada, impact return to work following road trauma? Protocol for a before–after survival analysis
Herbert Chan, Shannon Erdelyi, Alex Jiang, Christopher McLeod, Mieke Koehoorn, Jeffrey R Brubacher

BMJ Open Sep 2023, 13 (9) e075858; DOI: 10.1136/bmjopen-2023-075858
Who is most at risk of dying if infected with SARS-CoV-2? A mortality risk factor analysis using machine learning of patients with COVID-19 over time: a large population-based cohort study in Mexico
Lauren D Liao, Alan E Hubbard, Juan Pablo Gutierrez, Arturo Juárez-Flores, Kendall Kikkawa, Ronit Gupta, Yana Yarmolich, Iván de Jesús Ascencio-Montiel, Stefano M Bertozzi

BMJ Open Sep 2023, 13 (9) e072436; DOI: 10.1136/bmjopen-2023-072436
Exploring COVID-19 vaccine hesitancy and uptake in Nairobi’s urban informal settlements: an unsupervised machine learning analysis of a longitudinal prospective cohort study from 2021 to 2022
Nandita Rajshekhar, Jessie Pinchoff, Christopher B Boyer, Edwine Barasa, Timothy Abuya, Eva Muluve, Daniel Mwanga, Faith Mbushi, Karen Austrian

BMJ Open Sep 2023, 13 (9) e071032; DOI: 10.1136/bmjopen-2022-071032
Identifying regional disparities of infant mortality rates in Bangladesh: insights from nationwide cross-sectional studies and a statistical modelling approach using linear mixed effects model with temporal variability
Tarikul Islam, Noor Jahan Akter

BMJ Open Sep 2023, 13 (9) e069512; DOI: 10.1136/bmjopen-2022-069512

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