Research methods

Developing and validating a risk prediction model for preterm birth at Felege Hiwot Comprehensive Specialized Hospital, North-West Ethiopia: a retrospective follow-up study
Sefineh Fenta Feleke, Zelalem Alamrew Anteneh, Gizachew Tadesse Wassie, Anteneh Kassa Yalew, Anteneh Mengist Dessie

BMJ Open Sep 2022, 12 (9) e061061; DOI: 10.1136/bmjopen-2022-061061
Randomised controlled trial evaluating the effects of screening and referral for social determinants of health on Veterans’ outcomes: protocol
Deborah Gurewich, Nancy Kressin, Barbara G Bokhour, Amy M Linsky, Melissa E Dichter, Kelly J Hunt, Gemmae M Fix, Barbara L Niles

BMJ Open Sep 2022, 12 (9) e058972; DOI: 10.1136/bmjopen-2021-058972
Existing guidance on reporting of consensus methodology: a systematic review to inform ACCORD guideline development
Esther J van Zuuren, Patricia Logullo, Amy Price, Zbys Fedorowicz, Ellen L Hughes, William T Gattrell

BMJ Open Sep 2022, 12 (9) e065154; DOI: 10.1136/bmjopen-2022-065154
Residual disease after primary surgery for advanced epithelial ovarian cancer: expert elicitation exercise to explore opinions about potential impact of publication bias in a planned systematic review and meta-analysis
Andrew Bryant, Michael Grayling, Shaun Hiu, Ketankumar Gajjar, Eugenie Johnson, Ahmed Elattar, Luke Vale, Dawn Craig, Raj Naik

BMJ Open Aug 2022, 12 (8) e060183; DOI: 10.1136/bmjopen-2021-060183
Examining the criterion validity of two scalable, information technology-based systems designed to measure the quantity and quality of movement behaviours of children from Hong Kong primary schools: a cross-sectional validation study
Amy S Ha, James Cheng, Cecilia H S Chan, Guanxian Jiang, Yijian Yang, Johan Y Y Ng

BMJ Open Aug 2022, 12 (8) e060448; DOI: 10.1136/bmjopen-2021-060448
Suicide theory-guided natural language processing of clinical progress notes to improve prediction of veteran suicide risk: protocol for a mixed-method study
Esther Lydia Meerwijk, Suzanne R Tamang, Andrea K Finlay, Mark A Ilgen, Ruth M Reeves, Alex H S Harris

BMJ Open Aug 2022, 12 (8) e065088; DOI: 10.1136/bmjopen-2022-065088
Supporting direct support professionals in enabling people with intellectual disabilities to engage in meaningful activities: protocol for the Meaningful Activities 4 All (MA4A) study based on the human-centred design process
Christophe Wille, Ine De Clerck, Geert Van Hove, Jos Van Loon, Dominique Van de Velde, Patricia De Vriendt

BMJ Open Aug 2022, 12 (8) e061736; DOI: 10.1136/bmjopen-2022-061736
Reporting and transparent research practices in sports medicine and orthopaedic clinical trials: a meta-research study
Robert Schulz, Georg Langen, Robert Prill, Michael Cassel, Tracey L Weissgerber

BMJ Open Aug 2022, 12 (8) e059347; DOI: 10.1136/bmjopen-2021-059347
Effect of hand versus electronic signatures on response rates in postal surveys: a randomised controlled trial among emergency physicians in Canada
Dilan Patel, Monica Taljaard, Krishan Yadav, Michael Hickey, Jeffrey J Perry

BMJ Open Aug 2022, 12 (8) e061087; DOI: 10.1136/bmjopen-2022-061087
Probability of males to outlive females: an international comparison from 1751 to 2020
Marie-Pier Bergeron-Boucher, Jesús-Adrian Alvarez, Ilya Kashnitsky, Virginia Zarulli

BMJ Open Jul 2022, 12 (8) e059964; DOI: 10.1136/bmjopen-2021-059964

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