Statistics & Research Methods

Association of food industry ties with findings of studies examining the effect of dairy food intake on cardiovascular disease and mortality: systematic review and meta-analysis
Nicholas Chartres, Alice Fabbri, Sally McDonald, Joanna Diong, Joanne E McKenzie, Lisa Bero

BMJ Open Dec 2020, 10 (12) e039036; DOI: 10.1136/bmjopen-2020-039036
External barriers for including parents of preterm infants in a randomised clinical trial in the neonatal intensive care unit in Sweden: a descriptive study
Evalotte Mörelius, Emma Olsson, Charlotte Sahlén Helmer, Ylva Thernström Blomqvist, Charlotte Angelhoff

BMJ Open Dec 2020, 10 (12) e040991; DOI: 10.1136/bmjopen-2020-040991
Exclusion of enrolled participants in randomised controlled trials: what to do with ineligible participants?
Andrea M Rehman, Rashida Ferrand, Elizabeth Allen, Victoria Simms, Grace McHugh, Helen Anne Weiss

BMJ Open Dec 2020, 10 (12) e039546; DOI: 10.1136/bmjopen-2020-039546
Do childhood socioeconomic circumstances moderate the association between childhood cognitive ability and all-cause mortality across the life course? Prospective observational study of the 36-day sample of the Scottish Mental Survey 1947
Matthew Henry Iveson, Drew Altschul, Ian Deary

BMJ Open Dec 2020, 10 (12) e037847; DOI: 10.1136/bmjopen-2020-037847
Variation in model performance by data cleanliness and classification methods in the prediction of 30-day ICU mortality, a US nationwide retrospective cohort and simulation study
Theodore J Iwashyna, Cheng Ma, Xiao Qing Wang, Sarah Seelye, Ji Zhu, Akbar K Waljee

BMJ Open Dec 2020, 10 (12) e041421; DOI: 10.1136/bmjopen-2020-041421
New method of measuring subjective well-being: prospective validation study of the ‘Daily Experience Sampling Questionnaire’ (DESQ) in patients with psoriasis and healthy subjects in Germany
Christine Blome, Natalia Kirsten, Ibrahim Nergiz, Ulrich Schiffner, Marina Otten, Matthias Augustin

BMJ Open Dec 2020, 10 (12) e039227; DOI: 10.1136/bmjopen-2020-039227
Protocol for PD SENSORS: Parkinson’s Disease Symptom Evaluation in a Naturalistic Setting producing Outcome measuRes using SPHERE technology. An observational feasibility study of multi-modal multi-sensor technology to measure symptoms and activities of daily living in Parkinson’s disease
Catherine Morgan, Ian Craddock, Emma L Tonkin, Kirsi M Kinnunen, Roisin McNaney, Sam Whitehouse, Majid Mirmehdi, Farnoosh Heidarivincheh, Ryan McConville, Julia Carey, Alison Horne, Michal Rolinski, Lynn Rochester, Walter Maetzler, Helen Matthews, Oliver Watson, Rachel Eardley, Alan L Whone

BMJ Open Nov 2020, 10 (11) e041303; DOI: 10.1136/bmjopen-2020-041303
Feasibility of reporting results of large randomised controlled trials to participants: experience from the Fluoxetine Or Control Under Supervision (FOCUS) trial
Gillian Mead, Martin Dennis

BMJ Open Nov 2020, 10 (11) e040492; DOI: 10.1136/bmjopen-2020-040492
International observational atopic dermatitis cohort to follow natural history and treatment course: TARGET-DERM AD study design and rationale
Katrina Abuabara, Jonathan I Silverberg, Eric L Simpson, Amy S Paller, Lawrence F. Eichenfield, Robert Bissonnette, James Krueger, John E. Harris, Laura Dalfonso, Stephanie E Watkins, Julie M Crawford, D Thaçi, Emma Guttman-Yassky

BMJ Open Nov 2020, 10 (11) e039928; DOI: 10.1136/bmjopen-2020-039928
Community engagement approaches for Indigenous health research: recommendations based on an integrative review
Chu Yang Lin, Adalberto Loyola-Sanchez, Elaine Boyling, Cheryl Barnabe

BMJ Open Nov 2020, 10 (11) e039736; DOI: 10.1136/bmjopen-2020-039736

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