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Andrew Gray
Silver Contributor
12,565 Points

Contributions by role

Author 135
Reviewer 925
Editor 11,505

Contributions by subject area

Allergy and Clinical Immunology
Nutrition
Public Health
Gynecology and Obstetrics
Health Policy
Women's Health
Cardiology
Surgery and Surgical Specialties
Epidemiology
Food Science and Technology
Global Health
Psychiatry and Psychology
Food, Water and Energy Nexus
Urology
Emergency and Critical Care
Hematology
Infectious Diseases
Internal Medicine
Bioinformatics
Andrology
Obesity
Genomics
Mathematical Biology
Statistics
Diabetes and Endocrinology
Gastroenterology and Hepatology
Nursing
Otorhinolaryngology
Algorithms and Analysis of Algorithms
Artificial Intelligence
Data Mining and Machine Learning
Real-Time and Embedded Systems
Computational Biology
Computational Science
Kinesiology
Orthopedics
Neurology
Geriatrics
Science and Medical Education
Respiratory Medicine
Plant Science
Evidence Based Medicine
Dentistry
Environmental Impacts
Oncology
Pharmacology
Anthropology
Pediatrics
COVID-19
Palliative Care
Human-Computer Interaction
Neuroscience
Science Policy
Natural Resource Management
Clinical Trials
Ethical Issues
Biodiversity
Ecology
Paleontology
Data Science
Anatomy and Physiology
Anesthesiology and Pain Management
Bioengineering
Cognitive Disorders
Radiology and Medical Imaging
Rheumatology
Population Biology
Mental Health
Healthcare Services
Pathology
Evolutionary Studies
Genetics
Medical Genetics
Spatial and Geographic Information Science
Metabolic Sciences
Silver Contributor

Andrew R Gray

PeerJ Editor, Author & Reviewer

Summary

I am a biostatistician in the Biostatistics Centre at the University of Otago, a role I have held since 2004. Most of my work involves collaborating on a wide range of research projects in the health sciences, particularly in paediatric obesity, sleep, and physical activity; respiratory epidemiology, mostly asthma and COPD; dentistry; and health systems. I also work on statistical methods research, mostly topics inspired by these collaborations.

Prior to my current position I was a software metrics and machine learning researcher in the Department of Information Science at the same institution.

Allergy & Clinical Immunology Artificial Intelligence Clinical Trials Cognitive Disorders Data Mining & Machine Learning Data Science Diabetes & Endocrinology Epidemiology Ethical Issues Evidence Based Medicine Geriatrics Nutrition Obesity Oncology Pediatrics Psychiatry & Psychology Public Health Respiratory Medicine Science & Medical Education Science Policy Scientific Computing & Simulation Software Engineering Statistics Women's Health

Editorial Board Member

PeerJ - the Journal of Life & Environmental Sciences

Past or current institution affiliations

University of Otago

Work details

Research Associate Professor

University of Otago
February 2004
Centre for Biostatistics, Division of Health Sciences

Websites

  • LinkedIn
  • Academia.edu
  • ResearcherID
  • ResearchGate
  • PubMed Search
  • Google Scholar
  • Microsoft Academic Search
  • GitHub

PeerJ Contributions

  • Articles 1
  • Edited 61
  • Reviewed 9
September 11, 2018
A comparison of perceptions of nuts between the general public, dietitians, general practitioners, and nurses
Rachel Clare Brown, Andrew Robert Gray, Lee Ching Yong, Alex Chisholm, Sook Ling Leong, Siew Ling Tey
https://doi.org/10.7717/peerj.5500 PubMed 30221085

Academic Editor on

May 26, 2025
Zero-inflated models for the evaluation of colorectal polyps in colon cancer screening studies—a value-based biostatistics practice
Alok K. Dwivedi, Sherif E. Elhanafi, Mohamed O. Othman, Marc J. Zuckerman
https://doi.org/10.7717/peerj.19504 PubMed 40444286
December 10, 2024
Endorsement of reporting guidelines and clinical trial registration across urological medical journals: a cross-sectional study
Alex Hagood, Joseph Case, Trevor Magee, Caleb Smith, Danya Nees, Griffin Hughes, Matt Vassar
https://doi.org/10.7717/peerj.18619 PubMed 39677965
November 29, 2024
Assessing knowledge anxiety in researchers: a comprehensive measurement scale
Yu Zhenlei, Lin Song, Dong Minyi, He Qiang
https://doi.org/10.7717/peerj.18478 PubMed 39624137
November 18, 2024
Several methods for assessing research waste in reviews with a systematic search: a scoping review
Louise Olsbro Rosengaard, Mikkel Zola Andersen, Jacob Rosenberg, Siv Fonnes
https://doi.org/10.7717/peerj.18466 PubMed 39575170
July 11, 2024
Cancer prevention recommendations: awareness in a Mexican public hospital
Alejandro Trujillo Rivera, Clara Luz Sampieri, Eduardo Antonio Trujillo Rivera, José Roberto Gómez Cruz
https://doi.org/10.7717/peerj.17593 PubMed 39006033
June 24, 2024
Sedentary patterns and health outcomes in the oldest-old: a latent profile analysis
Elien Lebuf, Delfien Van Dyck, Laura Van de Velde, Melanie Beeckman, Jelle Van Cauwenberg, Sofie Compernolle
https://doi.org/10.7717/peerj.17505 PubMed 38938606
March 29, 2024
Bayesian estimation of the measurement of interactions in epidemiological studies
Shaowei Lin, Chanchan Hu, Zhifeng Lin, Zhijian Hu
https://doi.org/10.7717/peerj.17128 PubMed 38562994
January 31, 2024
Neck circumference is a highly reliable anthropometric measure in older adults requiring long-term care
Ryo Sato, Yohei Sawaya, Masahiro Ishizaka, Lu Yin, Takahiro Shiba, Tamaki Hirose, Tomohiko Urano
https://doi.org/10.7717/peerj.16816 PubMed 38313007
January 3, 2024
A survey of researchers’ methods sharing practices and priorities
Marcel LaFlamme, James Harney, Iain Hrynaszkiewicz
https://doi.org/10.7717/peerj.16731 PubMed 38188149
October 2, 2023
Assessing the magnitude of changes from protocol to publication—a survey on Cochrane and non-Cochrane Systematic Reviews
Maximilian Siebert, Laura Caquelin, Meisser Madera, Roberto Acosta-Dighero, Florian Naudet, Marta Roqué
https://doi.org/10.7717/peerj.16016 PubMed 37810785
September 25, 2023
An observational study on the adherence to study registrations in German interventional and observational studies from various fields
Christian Thiele, Gerrit Hirschfeld
https://doi.org/10.7717/peerj.16015 PubMed 37780396
November 8, 2022
Prediction of Ross River virus incidence in Queensland, Australia: building and comparing models
Wei Qian, David Harley, Kathryn Glass, Elvina Viennet, Cameron Hurst
https://doi.org/10.7717/peerj.14213 PubMed 36389410
August 9, 2022
Accuracy of anthropometric indicators of obesity to identify high blood pressure in adolescents—systematic review
Leandro Lima Borges, Tiago Rodrigues de Lima, Diego Augusto Santos Silva
https://doi.org/10.7717/peerj.13590 PubMed 35966930
May 4, 2022
Prevalence, awareness, and associated factors of high blood pressure among female migrant workers in Central South China
Hua Peng, Mei Sun, Xin Hu, Huiwu Han, Jing Su, Emin Peng, James Wiley, Lisa Lommel, Jyu-Lin Chen
https://doi.org/10.7717/peerj.13365 PubMed 35535240
January 25, 2022
The relationship between endorsing reporting guidelines or trial registration and the impact factor or total citations in surgical journals
Jing Zhou, Jianqiang Li, Jingao Zhang, Bo Geng, Yao Chen, Xiaobin Zhou
https://doi.org/10.7717/peerj.12837 PubMed 35127293
November 23, 2021
Acceptance of anomalous research findings: explaining treatment implausibility reduces belief in far-fetched results
W. Burt Thompson, Milen L. Radell
https://doi.org/10.7717/peerj.12532 PubMed 34900438
September 27, 2021
Self-reported body weight and weight-related stigmatization experiences among young adult women—two contexts, but similar attitudes related to body image, mental self-schemas, self-esteem, and stereotypes of people with obesity
Łukasz Jach, Sonia Krystoń
https://doi.org/10.7717/peerj.12047 PubMed 34692244
August 26, 2021
Measuring walking impairment in patients with intermittent claudication: psychometric properties of the Walking Estimated-Limitation Calculated by History (WELCH) questionnaire
Farhad Rezvani, Martin Härter, Jörg Dirmaier
https://doi.org/10.7717/peerj.12039 PubMed 34540365
August 19, 2021
Health status risk factors and quality of life in 75–84-year-old individuals assessed for dementia using the short 10/66 dementia diagnostic schedule
Gershwin Davis, Nelleen Baboolal, Vrijesh Tripathi, Robert Stewart
https://doi.org/10.7717/peerj.12040 PubMed 34466297
June 14, 2021
Denouncing the use of field-specific effect size distributions to inform magnitude
Emily Panzarella, Nataly Beribisky, Robert A. Cribbie
https://doi.org/10.7717/peerj.11383 PubMed 34178435
March 3, 2021
Publication rate and citation counts for preprints released during the COVID-19 pandemic: the good, the bad and the ugly
Diego Añazco, Bryan Nicolalde, Isabel Espinosa, Jose Camacho, Mariam Mushtaq, Jimena Gimenez, Enrique Teran
https://doi.org/10.7717/peerj.10927 PubMed 33717688
November 17, 2020
A valid and reliable measure of nothing: disentangling the “Gavagai effect” in survey data
Victor B. Arias, Fernando P. Ponce, Martin Bruggeman, Noelia Flores, Cristina Jenaro
https://doi.org/10.7717/peerj.10209 PubMed 33240604
October 20, 2020
What families really think about the quality of early intervention centers: a perspective from mixed methods
Rita Pilar Romero-Galisteo, Pablo Gálvez Ruiz, Angel Blanco Villaseñor, Maria Rodríguez-Bailón, Manuel González-Sánchez
https://doi.org/10.7717/peerj.10193 PubMed 33150085
October 13, 2020
Data sharing policies of journals in life, health, and physical sciences indexed in Journal Citation Reports
Jihyun Kim, Soon Kim, Hye-Min Cho, Jae Hwa Chang, Soo Young Kim
https://doi.org/10.7717/peerj.9924 PubMed 33083109
October 7, 2020
Lifestyle choices of Brazilian college students
Bianca G. Martins, João Marôco, Mauro V.G. Barros, Juliana A.D.B. Campos
https://doi.org/10.7717/peerj.9830 PubMed 33083105
October 6, 2020
Neighbourhood socioeconomic characteristics and blood pressure among Jamaican youth: a pooled analysis of data from observational studies
Trevor S. Ferguson, Novie O.M. Younger-Coleman, Jasneth Mullings, Damian Francis, Lisa-Gaye Greene, Parris Lyew-Ayee, Rainford Wilks
https://doi.org/10.7717/peerj.10058 PubMed 33083129
October 1, 2020
Early childhood caries and its associations with sugar consumption, overweight and exclusive breastfeeding in low, middle and high-income countries: an ecological study
Morenike O. Folayan, Maha El Tantawi, Francisco Ramos-Gomez, Wael Sabbah
https://doi.org/10.7717/peerj.9413 PubMed 33062406
July 3, 2020
Diminishing returns as a function of disturbance
Kimmo Sorjonen, Bo Melin
https://doi.org/10.7717/peerj.9490 PubMed 32685290
June 9, 2020
Within-person structures of daily cognitive performance differ from between-person structures of cognitive abilities
Florian Schmiedek, Martin Lövdén, Timo von Oertzen, Ulman Lindenberger
https://doi.org/10.7717/peerj.9290 PubMed 32551201
May 15, 2020
Spirometric traits show quantile-dependent heritability, which may contribute to their gene-environment interactions with smoking and pollution
Paul T. Williams
https://doi.org/10.7717/peerj.9145 PubMed 32461834
May 7, 2020
Resampling-based methods for biologists
John R. Fieberg, Kelsey Vitense, Douglas H. Johnson
https://doi.org/10.7717/peerj.9089 PubMed 32419987
April 21, 2020
Data-driven classification of the certainty of scholarly assertions
Mario Prieto, Helena Deus, Anita de Waard, Erik Schultes, Beatriz García-Jiménez, Mark D. Wilkinson
https://doi.org/10.7717/peerj.8871 PubMed 32341891
April 10, 2020
Association between self-rated health and physical performance in middle-aged and older women from Northeast Brazil
Sabrina Gabrielle Gomes Fernandes, Catherine M. Pirkle, Tetine Sentell, José Vilton Costa, Alvaro Campos Cavalcanti Maciel, Saionara Maria Aires da Câmara
https://doi.org/10.7717/peerj.8876 PubMed 32309044
March 17, 2020
Development and psychometric properties of the Portuguese version of the Orofacial Esthetic Scale: OES-Pt
Lucas A. Campos, João Marôco, Mike T. John, Ary Santos-Pinto, Juliana A.D.B. Campos
https://doi.org/10.7717/peerj.8814 PubMed 32211245
March 13, 2020
Determining hypertensive patients’ beliefs towards medication and associations with medication adherence using machine learning methods
Firdaus Aziz, Sorayya Malek, Adliah Mhd Ali, Mee Sieng Wong, Mogeeb Mosleh, Pozi Milow
https://doi.org/10.7717/peerj.8286 PubMed 32206445
March 4, 2020
Let’s talk about pain catastrophizing measures: an item content analysis
Geert Crombez, Annick L. De Paepe, Elke Veirman, Christopher Eccleston, Gregory Verleysen, Dimitri M.L. Van Ryckeghem
https://doi.org/10.7717/peerj.8643 PubMed 32181053
January 22, 2020
Permutation-based methods for mediation analysis in studies with small sample sizes
Miranda E. Kroehl, Sharon Lutz, Brandie D. Wagner
https://doi.org/10.7717/peerj.8246 PubMed 32002321
January 2, 2020
Ambulatory sleep scoring using accelerometers—distinguishing between nonwear and sleep/wake states
Amna Barouni, Jörg Ottenbacher, Johannes Schneider, Bernd Feige, Dieter Riemann, Anne Herlan, Driss El Hardouz, Darren McLennan
https://doi.org/10.7717/peerj.8284 PubMed 31915581
December 10, 2019
A comparison of random-field-theory and false-discovery-rate inference results in the analysis of registered one-dimensional biomechanical datasets
Hanaa Naouma, Todd C. Pataky
https://doi.org/10.7717/peerj.8189 PubMed 31844582
November 6, 2019
Enforced symmetry: the necessity of symmetric waxing and waning
Niklas Hohmann, Emilia Jarochowska
https://doi.org/10.7717/peerj.8011 PubMed 31720120
October 21, 2019
Threshold-like associations as a function of disturbance
Kimmo Sorjonen, Michael Ingre, Bo Melin
https://doi.org/10.7717/peerj.7891 PubMed 31656700
October 1, 2019
Investigating the relationships among lung function variables in chronic obstructive pulmonary disease in men
Ming-Lung Chuang, I-Feng Lin
https://doi.org/10.7717/peerj.7829 PubMed 31592356
September 16, 2019
Prediction model for patients with acute respiratory distress syndrome: use of a genetic algorithm to develop a neural network model
Zhongheng Zhang
https://doi.org/10.7717/peerj.7719 PubMed 31576250
August 28, 2019
Healthy eating promoting in a Brazilian sports-oriented school: a pilot study
Fábia Albernaz Massarani, Marta Citelli, Daniela Silva Canella, Josely Correa Koury
https://doi.org/10.7717/peerj.7601 PubMed 31523523
May 27, 2019
Hierarchical generalized additive models in ecology: an introduction with mgcv
Eric J. Pedersen, David L. Miller, Gavin L. Simpson, Noam Ross
https://doi.org/10.7717/peerj.6876 PubMed 31179172
May 24, 2019
Fragility Index, power, strength and robustness of findings in sports medicine and arthroscopic surgery: a secondary analysis of data from a study on use of the Fragility Index in sports surgery
Aleksi Reito, Lauri Raittio, Olli Helminen
https://doi.org/10.7717/peerj.6813 PubMed 31179168
May 24, 2019
We need to talk about reliability: making better use of test-retest studies for study design and interpretation
Granville J. Matheson
https://doi.org/10.7717/peerj.6918 PubMed 31179173
May 23, 2019
Simphony: simulating large-scale, rhythmic data
Jordan M. Singer, Darwin Y. Fu, Jacob J. Hughey
https://doi.org/10.7717/peerj.6985 PubMed 31198637
May 14, 2019
Exploring perceptions of meaningfulness in visual representations of bivariate relationships
Nataly Beribisky, Heather Davidson, Robert A. Cribbie
https://doi.org/10.7717/peerj.6853 PubMed 31139500
April 17, 2019
The coast of giants: an anthropometric survey of high schoolers on the Adriatic coast of Croatia
Pavel Grasgruber, Stipan Prce, Nikola Stračárová, Eduard Hrazdíra, Jan Cacek, Stevo Popović, Sylva Hřebíčková, Predrag Potpara, Ivan Davidovič, Tomáš Kalina
https://doi.org/10.7717/peerj.6598 PubMed 31024758
February 11, 2019
Discordant financial conflicts of interest disclosures between clinical trial conference abstract and subsequent publication
Glen J. Weiss, Roger B. Davis
https://doi.org/10.7717/peerj.6423 PubMed 30775185
February 7, 2019
Splitting on categorical predictors in random forests
Marvin N. Wright, Inke R. König
https://doi.org/10.7717/peerj.6339 PubMed 30746306
January 23, 2019
The use of one-stage meta-analytic method based on individual participant data for binary adverse events under the rule of three: a simulation study
Liang-Liang Cheng, Ke Ju, Rui-Lie Cai, Chang Xu
https://doi.org/10.7717/peerj.6295 PubMed 30697486
October 19, 2018
Conversion of Skeletal Society of Radiology annual meeting abstracts to publications in 2010–2015
Daniel Tritz, Leomar Bautista, Jared Scott, Matt Vassar
https://doi.org/10.7717/peerj.5817 PubMed 30364493
September 28, 2018
Distinguishing between enduring and dynamic concussion symptoms: applying Generalisability Theory to the Rivermead Post Concussion Symptoms Questionnaire (RPQ)
Oleg N. Medvedev, Alice Theadom, Suzanne Barker-Collo, Valery Feigin
https://doi.org/10.7717/peerj.5676 PubMed 30280043
September 12, 2018
Explanation of observational data engenders a causal belief about smoking and cancer
Leslie Myint, Jeffrey T. Leek, Leah R. Jager
https://doi.org/10.7717/peerj.5597 PubMed 30225177
July 31, 2018
Effectiveness and adequacy of blinding in the moderation of pain outcomes: Systematic review and meta-analyses of dry needling trials
Felicity A. Braithwaite, Julie L. Walters, Lok Sze Katrina Li, G. Lorimer Moseley, Marie T. Williams, Maureen P. McEvoy
https://doi.org/10.7717/peerj.5318 PubMed 30083458
July 11, 2018
Exercise can improve sleep quality: a systematic review and meta-analysis
Masahiro Banno, Yudai Harada, Masashi Taniguchi, Ryo Tobita, Hiraku Tsujimoto, Yasushi Tsujimoto, Yuki Kataoka, Akiko Noda
https://doi.org/10.7717/peerj.5172 PubMed 30018855
May 23, 2018
A brief introduction to mixed effects modelling and multi-model inference in ecology
Xavier A. Harrison, Lynda Donaldson, Maria Eugenia Correa-Cano, Julian Evans, David N. Fisher, Cecily E.D. Goodwin, Beth S. Robinson, David J. Hodgson, Richard Inger
https://doi.org/10.7717/peerj.4794 PubMed 29844961
March 30, 2018
Identification of three classes of acute respiratory distress syndrome using latent class analysis
Zhongheng Zhang
https://doi.org/10.7717/peerj.4592 PubMed 29610712
January 16, 2018
Sicegar: R package for sigmoidal and double-sigmoidal curve fitting
M. Umut Caglar, Ashley I. Teufel, Claus O. Wilke
https://doi.org/10.7717/peerj.4251 PubMed 29362694

Signed reviews submitted for articles published in PeerJ Note that some articles may not have the review itself made public unless authors have made them open as well.

December 2, 2020
Risk factors for new-onset atrial fibrillation in patients with chronic obstructive pulmonary disease: a systematic review and meta-analysis
Qiangru Huang, Huaiyu Xiong, Tiankui Shuai, Meng Zhang, Chuchu Zhang, Yalei Wang, Lei Zhu, Jiaju Lu, Jian Liu
https://doi.org/10.7717/peerj.10376 PubMed 33344074
December 6, 2019
According, against, and above dietary norms: a key to understanding the relationship between personality style and taste preferences
Ligiana Mihaela Petre, Bianca Nicoleta Vatasescu
https://doi.org/10.7717/peerj.8198 PubMed 31824780
October 30, 2019
Symptomatic menopausal transition and risk of subsequent stroke
Chao-Hung Yu, Chew-Teng Kor, Shuo-Chun Weng, Chia-Chu Chang, Ching-Pei Chen, Chia-Lin Wu
https://doi.org/10.7717/peerj.7964 PubMed 31687279
October 2, 2019
Trans-oral robotic surgery versus coblation tongue base reduction for obstructive sleep apnea syndrome
Wei-Che Lan, Wen-Dien Chang, Ming-Hsui Tsai, Yung-An Tsou
https://doi.org/10.7717/peerj.7812 PubMed 31592178
October 1, 2019
The association of depression with lower urinary tract symptoms: data from the National Health and Nutrition Examination Survey, 2005–2008
Jee Soo Park, Won Sik Ham, Chang Hee Hong, Byung Ha Chung, Kyo Chul Koo
https://doi.org/10.7717/peerj.7795 PubMed 31592197
September 10, 2019
Allergic rhinitis, rather than asthma, might be associated with dental caries, periodontitis, and other oral diseases in adults
Sai-Wai Ho, Ko-Huang Lue, Min-Sho Ku
https://doi.org/10.7717/peerj.7643 PubMed 31565570
August 12, 2019
Pay attention and you won’t lose it: a deep learning approach to sequence imputation
Ilia Sucholutsky, Apurva Narayan, Matthias Schonlau, Sebastian Fischmeister
https://doi.org/10.7717/peerj-cs.210
June 10, 2019
Prognosis predictive value of the Oxford Acute Severity of Illness Score for sepsis: a retrospective cohort study
Qingui Chen, Lishan Zhang, Shanhui Ge, Wanmei He, Mian Zeng
https://doi.org/10.7717/peerj.7083 PubMed 31218129
February 23, 2018
Assessment of three risk evaluation systems for patients aged ≥70 in East China: performance of SinoSCORE, EuroSCORE II and the STS risk evaluation system
Lingtong Shan, Wen Ge, Yiwei Pu, Hong Cheng, Zhengqiang Cang, Xing Zhang, Qifan Li, Anyang Xu, Qi Wang, Chang Gu, Yangyang Zhang
https://doi.org/10.7717/peerj.4413 PubMed 29492345