Introducing

Dr Steve Simpson-Yap

Hello, I’m Steve, a Senior Research Fellow in the Clinical Outcomes Research (CORe) Unit.

Dr Steve Simpson-Yap

Senior Research Fellow

Send email

a little bit about me

I am a Senior Research Fellow in the Clinical Outcomes Research Unit (CORe) at the Royal Melbourne Hospital and in the Neuroepidemiology Unit at the Melbourne School of Population & Global Health.

My research focus is principally the role of modifiable lifestyle and environmental factors with MS onset and progression. I also work in the application of epidemiological methods to the study of other health outcomes, including primary biliary cirrhosis and HPV-mediated neoplasia.

I completed postdoctoral training following my PhD at the Menzies Institute for Medical Research at the University of Tasmania. I also completed a Master of Public Health at the University of California, Berkeley.

Publications

Comorbidities are prevalent and detrimental for employment outcomes in people of working age with multiple sclerosis
Jing Chen, Bruce Taylor, Tania Winzenberg, Andrew J Palmer, Andrea Kirk-Brown, Pieter van Dijk, Steve Simpson, Leigh Blizzard, Ingrid van der Mei
Mult Scler. 2020 Oct;26(12):1550-1559. doi: 10.1177/1352458519872644. Epub 2019 Sep 6.

Feelings of depression, pain and walking difficulties have the largest impact on the quality of life of people with multiple sclerosis, irrespective of clinical phenotype
Yan Zhang, Bruce V Taylor, Steve Simpson, Leigh Blizzard, Julie A Campbell, Andrew J Palmer, Ingrid van der Mei
Mult Scler. 2021 Jul;27(8):1262-1275. doi: 10.1177/1352458520958369. Epub 2020 Sep 14.

Validation of 0-10 MS symptom scores in the Australian multiple sclerosis longitudinal study
Yan Zhang, Bruce V Taylor, Steve Simpson, Leigh Blizzard, Andrew J Palmer, Ingrid van der Mei
Mult Scler Relat Disord. 2020 Apr;39:101895. doi: 10.1016/j.msard.2019.101895. Epub 2019 Dec 18.

Keeping people with MS in the workforce through effective treatment
Steve Simpson
J Neurol Neurosurg Psychiatry. 2020 Jan;91(1):6. doi: 10.1136/jnnp-2019-321761. Epub 2019 Nov 14.

Increasing prevalence of primary biliary cholangitis in Victoria, Australia
Janine French, Ingrid van der Mei, Steve Simpson, Justin Ng, Peter Angus, John Lubel, Amanda Nicoll, Siddharth Sood, Stuart K Roberts, William Kemp, Niranjan Arachchi, Anouk Dev, Alexander Thompson, Paul J Gow
J Gastroenterol Hepatol. 2020 Apr;35(4):673-679. doi: 10.1111/jgh.14924. Epub 2019 Dec 28.

Redefining the Multiple Sclerosis Severity Score (MSSS): The effect of sex and onset phenotype
Yuan Zhou, Suzi B Claflin, Jim Stankovich, Ingrid van der Mei, Steve Simpson, Richard H Roxburgh, Tomas Kalincik, Leigh Blizzard, Alessandra Lugaresi, Raed Alroughani, Seyed Aidin Sajedi, Helmut Butzkueven, Eugenio Pucci, Daniele LA Spitaleri, Franco Granella, Edgardo Cristiano, Bassem Yamout, Stella Hughes, Riadh Gouider, José Luis Sánchez Menoyo, Javier Olascoaga, Chris McGuigan, Cameron Shaw, Allan G Kermode, Krisztian Kasa, Talal Al-Harbi, Ayse Altintas, Guy Laureys, Yara Fragoso, Todd A Hardy, Tunde Csepany, Carmen-Adella Sirbu, Danny Decoo, Attila Sas, Jose C Alvarez-Cermeño, Karim Kotkata, Jorge Millán-Pascual, Bruce V Taylor
Mult Scler. 2020 Nov;26(13):1765-1774. doi: 10.1177/1352458519881994. Epub 2019 Oct 31.

Systemic predictors of adverse events in a national surgical mortality audit: analysis of peer-review data from Australia and New Zealand Audit of Surgical Mortality
Richard C Turner, Steve Simpson, Mrunmayee Bhalerao
ANZ J Surg. 2019 Nov;89(11):1398-1403. doi: 10.1111/ans.15386. Epub 2019 Sep 3.

Predictors of Change in Employment Status and Associations with Quality of Life: A Prospective International Study of People with Multiple Sclerosis
Claudia H Marck, Zoe Aitken, Steve Simpson, Tracey J Weiland, Anne Kavanagh, George A Jelinek
J Occup Rehabil. 2020 Mar;30(1):105-114. doi: 10.1007/s10926-019-09850-5.

On the path together: Experiences of partners of people with multiple sclerosis of the impact of lifestyle modification on their relationship
Sandra L Neate, Keryn L Taylor, George A Jelinek, Alysha M De Livera, Steve Simpson, William Bevens, Tracey J Weiland
Health Soc Care Community. 2019 Nov;27(6):1515-1524. doi: 10.1111/hsc.12822. Epub 2019 Aug 1.

Change in multiple sclerosis prevalence over time in Australia 2010-2017 utilising disease-modifying therapy prescription data
Julie A Campbell, Steve Simpson, Hasnat Ahmad, Bruce V Taylor, Ingrid van der Mei, Andrew J Palmer
Mult Scler. 2020 Oct;26(11):1315-1328. doi: 10.1177/1352458519861270. Epub 2019 Jul 26.

Latitude continues to be significantly associated with the prevalence of multiple sclerosis: an updated meta-analysis
Steve Simpson, Wendy Wang, Peter Otahal, Leigh Blizzard, Ingrid A F van der Mei, Bruce V Taylor
J Neurol Neurosurg Psychiatry. 2019 Nov;90(11):1193-1200. doi: 10.1136/jnnp-2018-320189. Epub 2019 Jun 19.

Cervical determinants of anal HPV infection and high-grade anal lesions in women: a collaborative pooled analysis
Chunqing Lin, Jiri Slama, Paula Gonzalez, Marc T Goodman, Ningshao Xia, Aimée R Kreimer, Ting Wu, Nancy A Hessol, Yurii Shvetsov, Ana P Ortiz, Beatriz Grinsztejn, Anna-Barbara Moscicki, Isabelle Heard, María Del Refugio González Losa, Erna M Kojic, Maarten F Schim van der Loeff, Feixue Wei, Adhemar Longatto-Filho, Zizipho A Mbulawa, Joel M Palefsky, Annette H Sohn, Brenda Y Hernandez, Katina Robison, Steve Simpson, Lois J Conley, Alexandra de Pokomandy, Marianne A B van der Sande, Racheal S Dube Mandishora, Lays P B Volpini, Alessandra Pierangeli, Byron Romero, Timothy Wilkin, Silvia Franceschi, Carmen Hidalgo-Tenorio, Reshmie A Ramautarsing, Ina U Park, Fernanda K Tso, Sheela Godbole, Kathleen W M D'Hauwers, Borek Sehnal, Lynette J Menezes, Sandra A Heráclio, Gary M Clifford
Lancet Infect Dis. 2019 Aug;19(8):880-891. doi: 10.1016/S1473-3099(19)30164-1. Epub 2019 Jun 13.

Modifiable factors associated with depression and anxiety in multiple sclerosis
Claudia R Gascoyne, Steve Simpson, Jing Chen, Ingrid van der Mei, Claudia H Marck
Acta Neurol Scand. 2019 Sep;140(3):204-211. doi: 10.1111/ane.13132. Epub 2019 Jun 24.

Modelling the impact of multiple sclerosis on life expectancy, quality-adjusted life years and total lifetime costs: Evidence from Australia
Andrew J Palmer, Ingrid van der Mei, Bruce V Taylor, Philip M Clarke, Steve Simpson, Hasnat Ahmad
Mult Scler. 2020 Apr;26(4):411-420. doi: 10.1177/1352458519831213. Epub 2019 Feb 26.

Role of PCK1 gene on oil tea-induced glucose homeostasis and type 2 diabetes: an animal experiment and a case-control study
Qiantu Hu, Huafeng Chen, Yanli Zuo, Qin He, Xuan He, Steve Simpson, Wei Huang, Hui Yang, Haiying Zhang, Rui Lin
Nutr Metab (Lond). 2019 Feb 13;16:12. doi: 10.1186/s12986-019-0337-8. eCollection 2019.

Associations of demographic and clinical factors with depression over 2.5-years in an international prospective cohort of people living with MS
Steve Simpson, Keryn L Taylor, George A Jelinek, Alysha M De Livera, Chelsea R Brown, Emily O'Kearney, Sandra L Neate, William Bevens, Tracey J Weiland
Mult Scler Relat Disord. 2019 May;30:165-175. doi: 10.1016/j.msard.2019.02.014. Epub 2019 Feb 11.

Differential multiple sclerosis treatment allocation between Australia and New Zealand associated with clinical outcomes but not mood or quality of life
Aung Zaw Zaw Phyo, George A Jelinek, Chelsea R Brown, Emily O'Kearney, Sandra L Neate, Alysha M De Livera, Keryn L Taylor, William Bevens, Steve Simpson, Tracey J Weiland
Mult Scler Relat Disord. 2019 May;30:25-32. doi: 10.1016/j.msard.2019.01.037. Epub 2019 Jan 24.

Health Outcomes and Lifestyle in a Sample of People With Multiple Sclerosis (HOLISM): Longitudinal and Validation Cohorts
Tracey J Weiland, Alysha M De Livera, Chelsea R Brown, George A Jelinek, Zoe Aitken, Steve L Simpson, Sandra L Neate, Keryn L Taylor, Emily O'Kearney, William Bevens, Claudia H Marck
Front Neurol. 2018 Dec 12;9:1074. doi: 10.3389/fneur.2018.01074. eCollection 2018.

Vitamin D deficiency is an etiological factor for MS - Commentary
Steve Simpson, Ingrid van der Mei
Mult Scler. 2019 Apr;25(5):641-643. doi: 10.1177/1352458518815605. Epub 2018 Nov 30.

Longitudinal Associations of Modifiable Lifestyle Factors With Positive Depression-Screen Over 2.5-Years in an International Cohort of People Living With Multiple Sclerosis
Keryn L Taylor, Steve Simpson, George A Jelinek, Sandra L Neate, Alysha M De Livera, Chelsea R Brown, Emily O'Kearney, Claudia H Marck, Tracey J Weiland
Front Psychiatry. 2018 Oct 30;9:526. doi: 10.3389/fpsyt.2018.00526. eCollection 2018.

Oil tea improves glucose and lipid levels and alters gut microbiota in type 2 diabetic mice
Rui Lin, Xuan He, Huafeng Chen, Qin He, Ziting Yao, Yuanfan Li, Hui Yang, Steve Simpson
Nutr Res. 2018 Sep;57:67-77. doi: 10.1016/j.nutres.2018.05.004. Epub 2018 Jun 1.

Onset Symptoms, Tobacco Smoking, and Progressive-Onset Phenotype Are Associated With a Delayed Onset of Multiple Sclerosis, and Marijuana Use With an Earlier Onset
Chunrong Tao, Steve Simpson, Bruce V Taylor, Leigh Blizzard, Robyn M Lucas, Anne-Louise Ponsonby, Simon Broadley, AusLong/Ausimmune Investigators Group, Ingrid van der Mei
Front Neurol. 2018 Jun 8;9:418. doi: 10.3389/fneur.2018.00418. eCollection 2018.

Effects of multiple sclerosis disease-modifying therapies on employment measures using patient-reported data
Jing Chen, Bruce V Taylor, Leigh Blizzard, Steve Simpson, Andrew J Palmer, Ingrid A F van der Mei
J Neurol Neurosurg Psychiatry. 2018 Nov;89(11):1200-1207. doi: 10.1136/jnnp-2018-318228. Epub 2018 Jun 19.

Estimating MS-related work productivity loss and factors associated with work productivity loss in a representative Australian sample of people with multiple sclerosis
Jing Chen, Bruce Taylor, Andrew J Palmer, Andrea Kirk-Brown, Pieter van Dijk, Steve Simpson, Leigh Blizzard, Ingrid van der Mei
Mult Scler. 2019 Jun;25(7):994-1004. doi: 10.1177/1352458518781971. Epub 2018 Jun 18.

Polymorphism in the serotonin transporter gene polymorphisms ( 5-HTTLPR) modifies the association between significant life events and depression in people with multiple sclerosis
Alice Saul, Bruce Taylor, Steve Simpson, Anne-Louise Ponsonby, Leigh Blizzard, Terence Dwyer, Brendan McMorran, Brenda Wood, Ingrid Af van der Mei
Mult Scler. 2019 May;25(6):848-855. doi: 10.1177/1352458518770021. Epub 2018 Apr 23.

Sun Exposure across the Life Course Significantly Modulates Early Multiple Sclerosis Clinical Course
Steve Simpson, Ingrid van der Mei, Robyn M Lucas, Anne-Louise Ponsonby, Simon Broadley, Leigh Blizzard, Ausimmune/AusLong Investigators Group, Bruce Taylor
Front Neurol. 2018 Feb 1;9:16. doi: 10.3389/fneur.2018.00016. eCollection 2018.

Common genetic variation within miR-146a predicts disease onset and relapse in multiple sclerosis
Yuan Zhou, Ming Chen, Steve Simpson, Robyn M Lucas, Jac C Charlesworth, Nicholas Blackburn, Ingrid van der Mei, Anne-Louise Ponsonby, Ausimmune/AUSLONG investigators group, Bruce V Taylor
Neurol Sci. 2018 Feb;39(2):297-304. doi: 10.1007/s10072-017-3177-1. Epub 2017 Nov 10.

The Role of Vitamin D in Multiple Sclerosis: Biology and Biochemistry, Epidemiology and Potential Roles in Treatment
Steve Simpson, Ingrid van der Mei, Bruce Taylor
Med Chem. 2018 Feb 6;14(2):129-143. doi: 10.2174/1573406413666170921143600.

Genetic variation in the gene LRP2 increases relapse risk in multiple sclerosis
Yuan Zhou, Jennifer S Graves, Steve Simpson, Jac C Charlesworth, Ingrid van der Mei, Emmanuelle Waubant, Lisa F Barcellos, Anita Belman, Lauren Krupp, Robyn Lucas, Anne-Louise Ponsonby, Bruce V Taylor, Ausimmmune/AusLong investigators group
J Neurol Neurosurg Psychiatry. 2017 Oct;88(10):864-868. doi: 10.1136/jnnp-2017-315971. Epub 2017 Jul 24.

Variation within MBP gene predicts disease course in multiple sclerosis
Yuan Zhou, Steve Simpson, Jac C Charlesworth, Ingrid van der Mei, Robyn M Lucas, Anne-Louise Ponsonby, AUSLONG Investigators Group, Bruce V Taylor
Brain Behav. 2017 Mar 9;7(4):e00670. doi: 10.1002/brb3.670. eCollection 2017 Apr.

Vitamin D supplementation to prevent acute respiratory tract infections: systematic review and meta-analysis of individual participant data
Adrian R Martineau, David A Jolliffe, Richard L Hooper, Lauren Greenberg, John F Aloia, Peter Bergman, Gal Dubnov-Raz, Susanna Esposito, Davaasambuu Ganmaa, Adit A Ginde, Emma C Goodall, Cameron C Grant, Christopher J Griffiths, Wim Janssens, Ilkka Laaksi, Semira Manaseki-Holland, David Mauger, David R Murdoch, Rachel Neale, Judy R Rees, Steve Simpson, Iwona Stelmach, Geeta Trilok Kumar, Mitsuyoshi Urashima, Carlos A Camargo
BMJ. 2017 Feb 15;356:i6583. doi: 10.1136/bmj.i6583.

Association between human herpesvirus & human endogenous retrovirus and MS onset & progression
Chunrong Tao, Steve Simpson, Bruce V Taylor, Ingrid van der Mei
J Neurol Sci. 2017 Jan 15;372:239-249. doi: 10.1016/j.jns.2016.11.060. Epub 2016 Nov 24.

Midsagittal corpus callosum area and conversion to multiple sclerosis after clinically isolated syndrome: A multicentre Australian cohort study
Cara Odenthal, Steve Simpson, Justin Oughton, Ingrid van der Mei, Stephen Rose, Jurgen Fripp, Robyn Lucas, Bruce Taylor, Keith Dear, Anne-Louise Ponsonby, Alan Coulthard, Ausimmune AusLong Investigator Groups
J Med Imaging Radiat Oncol. 2017 Aug;61(4):453-460. doi: 10.1111/1754-9485.12570. Epub 2016 Dec 20.

Higher latitude is significantly associated with an earlier age of disease onset in multiple sclerosis
Chunrong Tao, Steve Simpson, Ingrid van der Mei, Leigh Blizzard, Eva Havrdova, Dana Horakova, Vahid Shaygannejad, Alessandra Lugaresi, Guillermo Izquierdo, Maria Trojano, Pierre Duquette, Marc Girard, Franois Grand'Maison, Pierre Grammond, Raed Alroughani, Murat Terzi, Celia Oreja-Guevara, Seyed Aidin Sajedi, Gerardo Iuliano, Patrizia Sola, Jeannette Lechner-Scott, Vincent Van Pesch, Eugenio Pucci, Roberto Bergamaschi, Michael Barnett, Cristina Ramo, Bhim Singhal, Daniele LA Spitaleri, Mark Slee, Freek Verheul, Ricardo Fernández Bolaños, Maria Pia Amato, Edgardo Cristiano, Franco Granella, Suzanne Hodgkinson, Marcela Fiol, Orla Gray, Pamela McCombe, Maria Laura Saladino, José Luis Sánchez Menoyo, Neil Shuey, Steve Vucic, Cameron Shaw, Norma Deri, Walter Oleschko Arruda, Helmut Butzkueven, Tim Spelman, Bruce V Taylor, MSBase Study Group
J Neurol Neurosurg Psychiatry. 2016 Dec;87(12):1343-1349. doi: 10.1136/jnnp-2016-314013. Epub 2016 Nov 3.

Stressful life events and the risk of initial central nervous system demyelination
Alice Saul, Anne-Louise Ponsonby, Robyn M Lucas, Bruce V Taylor, Steve Simpson, Patricia Valery, Terence Dwyer, Trevor J Kilpatrick, Michael P Pender, Ingrid Af van der Mei
Mult Scler. 2017 Jun;23(7):1000-1007. doi: 10.1177/1352458516667566. Epub 2016 Sep 6.

Role of genetic susceptibility variants in predicting clinical course in multiple sclerosis: a cohort study
Gongbu Pan, Steve Simpson, Ingrid van der Mei, Jac C Charlesworth, Robyn Lucas, Anne-Louise Ponsonby, Yuan Zhou, Feitong Wu, Bruce V Taylor
J Neurol Neurosurg Psychiatry. 2016 Nov;87(11):1204-1211. doi: 10.1136/jnnp-2016-313722. Epub 2016 Aug 24.

Synergetic and antagonistic effects of combined calcitriol and interferon-β treatment on cytokine production by stimulated PBMCs
Steve Simpson, Niall Stewart, Ingrid van der Mei, Leigh Blizzard, Bruce V Taylor
J Neuroimmunol. 2016 Aug 15;297:148-55. doi: 10.1016/j.jneuroim.2016.05.020. Epub 2016 May 31.

Front-to-back & dabbing wiping behaviour post-toilet associated with anal neoplasia & HR-HPV carriage in women with previous HPV-mediated gynaecological neoplasia
Steve Simpson, Penny Blomfield, Alyssa Cornall, Sepehr N Tabrizi, Leigh Blizzard, Richard Turner
Cancer Epidemiol. 2016 Jun;42:124-32. doi: 10.1016/j.canep.2016.04.001. Epub 2016 Apr 22.

Genetic loci for Epstein-Barr virus nuclear antigen-1 are associated with risk of multiple sclerosis
Yuan Zhou, Gu Zhu, Jac C Charlesworth, Steve Simpson, Rohina Rubicz, Harald Hh Göring, Nikolaos A Patsopoulos, Caroline Laverty, Feitong Wu, Anjali Henders, Jonathan J Ellis, Ingrid van der Mei, Grant W Montgomery, John Blangero, Joanne E Curran, Matthew P Johnson, Nicholas G Martin, Dale R Nyholt, Bruce V Taylor, ANZgene consortium
Mult Scler. 2016 Nov;22(13):1655-1664. doi: 10.1177/1352458515626598. Epub 2016 Jan 27.

Frequency of Comorbidities and Their Association with Clinical Disability and Relapse in Multiple Sclerosis
Prudence Tettey, Dylan Siejka, Steve Simpson, Bruce Taylor, Leigh Blizzard, Anne-Louise Ponsonby, Terence Dwyer, Ingrid van der Mei
Neuroepidemiology. 2016;46(2):106-13. doi: 10.1159/000442203. Epub 2016 Jan 20.

The role of epidemiology in MS research: Past successes, current challenges and future potential
Steve Simpson, Bruce V Taylor, Ingrid van der Mei
Mult Scler. 2015 Jul;21(8):969-77. doi: 10.1177/1352458515574896. Epub 2015 Mar 12.

Genetic variation in PBMC-produced IFN-γ and TNF-α associations with relapse in multiple sclerosis
Yuan Zhou, Bruce Taylor, Ingrid van der Mei, Niall Stewart, Jac Charlesworth, Leigh Blizzard, Anne-Louise Ponsonby, Terence Dwyer, Fotini Pittas, Steve Simpson
J Neurol Sci. 2015 Feb 15;349(1-2):40-4. doi: 10.1016/j.jns.2014.12.022. Epub 2014 Dec 19.

The co-occurrence of multiple sclerosis and type 1 diabetes: shared aetiologic features and clinical implication for MS aetiology
Prudence Tettey, Steve Simpson, Bruce V Taylor, Ingrid A F van der Mei
J Neurol Sci. 2015 Jan 15;348(1-2):126-31. doi: 10.1016/j.jns.2014.11.019. Epub 2014 Nov 20.

Vascular comorbidities in the onset and progression of multiple sclerosis
Prudence Tettey, Steve Simpson, Bruce V Taylor, Ingrid A F van der Mei
J Neurol Sci. 2014 Dec 15;347(1-2):23-33. doi: 10.1016/j.jns.2014.10.020. Epub 2014 Oct 16.

The Scandinavian paradox revisited: Editorial comment on Berg-Hansen et al. 'High prevalence and no latitude gradient of multiple sclerosis in Norway'
Steve Simpson, Bruce V Taylor
Mult Scler. 2014 Nov;20(13):1675-7. doi: 10.1177/1352458514535474.

An adverse lipid profile is associated with disability and progression in disability, in people with MS
Prudence Tettey, Steve Simpson, Bruce Taylor, Leigh Blizzard, Anne-Louise Ponsonby, Terence Dwyer, Karam Kostner, Ingrid van der Mei
Mult Scler. 2014 Nov;20(13):1737-44. doi: 10.1177/1352458514533162. Epub 2014 May 14.

Stimulated PBMC-produced IFN-γ and TNF-α are associated with altered relapse risk in multiple sclerosis: results from a prospective cohort study
Steve Simpson, Niall Stewart, Ingrid van der Mei, Petr Otahal, Jac Charlesworth, Anne-Louise Ponsonby, Leigh Blizzard, Terence Dwyer, Fotini Pittas, Peter Gies, Bruce Taylor
J Neurol Neurosurg Psychiatry. 2015 Feb;86(2):200-7. doi: 10.1136/jnnp-2013-307336. Epub 2014 May 1.

Adverse lipid profile is not associated with relapse risk in MS: results from an observational cohort study
Prudence Tettey, Steve Simpson, Bruce Taylor, Leigh Blizzard, Anne-Louise Ponsonby, Terence Dwyer, Karam Kostner, Ingrid van der Mei
J Neurol Sci. 2014 May 15;340(1-2):230-2. doi: 10.1016/j.jns.2014.02.038. Epub 2014 Mar 5.

The potential role of epigenetic modifications in the heritability of multiple sclerosis
Yuan Zhou, Steve Simpson, Adele F Holloway, Jac Charlesworth, Ingrid van der Mei, Bruce V Taylor
Mult Scler. 2014 Feb;20(2):135-40. doi: 10.1177/1352458514520911.

Association between multiple sclerosis risk-associated SNPs and relapse and disability--a prospective cohort study
Rui Lin, Bruce V Taylor, Steve Simpson, Jac Charlesworth, Anne-Louise Ponsonby, Fotini Pittas, Terry Dwyer, Ingrid van der Mei
Mult Scler. 2014 Mar;20(3):313-21. doi: 10.1177/1352458513496882. Epub 2013 Jul 25.

Novel modulating effects of PKC family genes on the relationship between serum vitamin D and relapse in multiple sclerosis
Rui Lin, Bruce V Taylor, Steve Simpson, Jac Charlesworth, Anne-Louise Ponsonby, Fotini Pittas, Terence Dwyer, Ingrid A F van der Mei
J Neurol Neurosurg Psychiatry. 2014 Apr;85(4):399-404. doi: 10.1136/jnnp-2013-305245. Epub 2013 Jul 18.

A novel method for calculating prevalence of multiple sclerosis in Australia
Andrew J Palmer, Peta L Hitchens, Steve Simpson, Beth O'Leary, Sam Colman, Bruce V Taylor
Mult Scler. 2013 Nov;19(13):1704-11. doi: 10.1177/1352458513479841. Epub 2013 Apr 15.

Assessing possible selection bias in a national voluntary MS longitudinal study in Australia
Bruce V Taylor, Andrew Palmer, Steve Simpson, Robyn Lucas, NZMSPS study group, Rex D Simmons, Deborah Mason, John Pearson, Glynnis Clarke, Clive Sabel, Ernie Willoughby, Anne Richardson, David Abernethy
Mult Scler. 2013 Oct;19(12):1627-31. doi: 10.1177/1352458513481511. Epub 2013 Mar 25.

Geographical variations in sex ratio trends over time in multiple sclerosis
Maria Trojano, Guglielmo Lucchese, Giusi Graziano, Bruce V Taylor, Steve Simpson, Vito Lepore, Francois Grand'maison, Pierre Duquette, Guillermo Izquierdo, Pierre Grammond, Maria Pia Amato, Roberto Bergamaschi, Giorgio Giuliani, Cavit Boz, Raymond Hupperts, Vincent Van Pesch, Jeannette Lechner-Scott, Edgardo Cristiano, Marcela Fiol, Celia Oreja-Guevara, Maria Laura Saladino, Freek Verheul, Mark Slee, Damiano Paolicelli, Carla Tortorella, Mariangela D'Onghia, Pietro Iaffaldano, Vita Direnzo, Helmut Butzkueven, MSBase Study Group and the New Zealand MS Prevalence Study Group
PLoS One. 2012;7(10):e48078. doi: 10.1371/journal.pone.0048078. Epub 2012 Oct 25.

Interferon-β and serum 25-hydroxyvitamin D interact to modulate relapse risk in MS
Niall Stewart, Steve Simpson, Ingrid van der Mei, Anne-Louise Ponsonby, Leigh Blizzard, Terrence Dwyer, Fotini Pittas, Darryl Eyles, Pauline Ko, Bruce V Taylor
Neurology. 2012 Jul 17;79(3):254-60. doi: 10.1212/WNL.0b013e31825fded9. Epub 2012 Jun 13.

Anti-HHV-6 IgG titer significantly predicts subsequent relapse risk in multiple sclerosis
Steve Simpson, Bruce Taylor, Dominic E Dwyer, Janette Taylor, Leigh Blizzard, Anne-Louise Ponsonby, Fotini Pittas, Terence Dwyer, Ingrid van der Mei
Mult Scler. 2012 Jun;18(6):799-806. doi: 10.1177/1352458511428081. Epub 2011 Nov 14.

Latitude is significantly associated with the prevalence of multiple sclerosis: a meta-analysis
Steve Simpson, Leigh Blizzard, Petr Otahal, Ingrid Van der Mei, Bruce Taylor
J Neurol Neurosurg Psychiatry. 2011 Oct;82(10):1132-41. doi: 10.1136/jnnp.2011.240432. Epub 2011 Apr 8.

Trends in the epidemiology of multiple sclerosis in Greater Hobart, Tasmania: 1951 to 2009
Steve Simpson, Fotini Pittas, Ingrid van der Mei, Leigh Blizzard, Anne-Louise Ponsonby, Bruce Taylor
J Neurol Neurosurg Psychiatry. 2011 Feb;82(2):180-7. doi: 10.1136/jnnp.2010.215186. Epub 2010 Nov 20.

Higher 25-hydroxyvitamin D is associated with lower relapse risk in multiple sclerosis
Steve Simpson, Bruce Taylor, Leigh Blizzard, Anne-Louise Ponsonby, Fotini Pittas, Helen Tremlett, Terence Dwyer, Peter Gies, Ingrid van der Mei
Ann Neurol. 2010 Aug;68(2):193-203. doi: 10.1002/ana.22043.