Works by Tremlett, Helen

Results: 118

Higher healthcare use before paediatric multiple sclerosis onset: a nationwide cohort study Open Access.

Published in:

Brain Communications, 2025, v. 7, n. 3, p. 1, doi. 10.1093/braincomms/fcaf180

By:

McKay, Kyla Anne;
Manouchehrinia, Ali;
Zhu, Feng;
Zhao, Yinshan;
Marrie, Ruth Ann;
Maxwell, Colleen Jean;
Hillert, Jan;
Tremlett, Helen

Publication type:

Article

Evaluating the Role of High‐Dimensional Proxy Data in Confounding Adjustment in Multiple Sclerosis Research: A Case Study.

Published in:

Pharmacoepidemiology & Drug Safety, 2025, v. 34, n. 2, p. 1, doi. 10.1002/pds.70112

By:

Karim, Mohammad Ehsanul;
Hossain, Md. Belal;
Ng, Huah Shin;
Zhu, Feng;
Frank, Hanna A.;
Tremlett, Helen

Publication type:

Article

Etiology, effects and management of comorbidities in multiple sclerosis: recent advances.

Published in:

Frontiers in Immunology, 2023, p. 1, doi. 10.3389/fimmu.2023.1197195

By:

Marrie, Ruth Ann;
Fisk, John D.;
Fitzgerald, Kathryn;
Kowalec, Kaarina;
Maxwell, Colleen;
Rotstein, Dalia;
Salter, Amber;
Tremlett, Helen

Publication type:

Article

The Multiple Sclerosis Prodrome: Evidence to Action.

Published in:

Frontiers in Neurology, 2022, v. 13, p. 1, doi. 10.3389/fneur.2021.761408

By:

Tremlett, Helen;
Munger, Kassandra L.;
Makhani, Naila

Publication type:

Article

Does the Season or Month of Birth Influence Disease Progression in Multiple Sclerosis?

Published in:

Neuroepidemiology, 2006, v. 26, n. 4, p. 195, doi. 10.1159/000092406

By:

Tremlett, Helen L.;
Devonshire, Virginia A.

Publication type:

Article

Updated Multiple Sclerosis Incidence, 2015-2022.

Published in:

JAMA Neurology, 2024, v. 81, n. 10, p. 1100, doi. 10.1001/jamaneurol.2024.2876

By:

Graf, Jonas;
Akmatov, Manas K.;
Meuth, Sven G.;
Tremlett, Helen;
Holstiege, Jakob

Publication type:

Article

Incidence of Mood or Anxiety Disorders in Children of Parents with Multiple Sclerosis.

Published in:

2016

By:

Razaz, Neda;
Tremlett, Helen;
Boyce, Thomas;
Guhn, Martin;
Marrie, Ruth Ann;
Joseph, KS

Publication type:

journal article

Safety of disease-modifying drugs for multiple sclerosis in pregnancy: current challenges and future considerations for effective pharmacovigilance.

Published in:

Expert Review of Neurotherapeutics, 2013, v. 13, n. 3, p. 251, doi. 10.1586/ERN.13.12

By:

Lu, Ellen;
Bing Wei Wang;
Guimond, Colleen;
Synnes, Anne;
Sadovnick, A. Dessa;
Dahlgren, Leanne;
Traboulsee, Anthony;
Tremlett, Helen

Publication type:

Article

The Incidence and Prevalence of Multiple Sclerosis in Nova Scotia, Canada.

Published in:

Canadian Journal of Neurological Sciences, 2013, v. 40, n. 6, p. 824

By:

Marrie, Ruth Ann;
Fisk, John D.;
Stadnyk, Karen J.;
Yu, Bo Nancy;
Tremlett, Helen;
Wolfson, Christina;
Warren, Sharon;
Bhan, Virender

Publication type:

Article

Informing Medication Discontinuation Decisions among Older Adults with Relapsing-Onset Multiple Sclerosis.

Published in:

Drugs & Aging, 2020, v. 37, n. 3, p. 225, doi. 10.1007/s40266-019-00741-1

By:

Schwehr, Natalie A.;
Kuntz, Karen M.;
Enns, Eva A.;
Shippee, Nathan D.;
Kingwell, Elaine;
Tremlett, Helen;
Carpenter, Adam F.;
Butler, Mary;
The BeAMS Study group;
Shirani, A.;
Zhao, Y.;
Evans, C.;
van der Kop, M. L.;
Gustafson, G.;
Petkau, J.;
Oger, J.

Publication type:

Article

Short-term laboratory and related safety outcomes for the multiple sclerosis oral disease-modifying therapies: an observational study.

Published in:

Expert Opinion on Drug Safety, 2021, v. 20, n. 4, p. 481, doi. 10.1080/14740338.2021.1867536

By:

Kingwell, Elaine;
Zhang, Tingting;
Zhu, Feng;
Walld, Randy;
Carruthers, Robert;
Evans, Charity;
Marrie, Ruth Ann;
Tremlett, Helen

Publication type:

Article

The reporting of observational studies of drug effectiveness and safety: recommendations to extend existing guidelines.

Published in:

Expert Opinion on Drug Safety, 2021, v. 20, n. 1, p. 1, doi. 10.1080/14740338.2021.1849134

By:

Cragg, Jacquelyn J.;
Azoulay, Laurent;
Collins, Gary;
De Vera, Mary A.;
Etminan, Mahyar;
Lalji, Fawziah;
Gershon, Andrea S.;
Guyatt, Gordon;
Harrison, Mark;
Jutzeler, Catherine;
Kassam, Rosemin;
Kendzerska, Tetyana;
Lynd, Larry;
Mansournia, Mohammad Ali;
Sadatsafavi, Mohsen;
Tong, Bobo;
Warner, Freda M.;
Tremlett, Helen

Publication type:

Article

Safety profile of ocrelizumab for the treatment of multiple sclerosis: a systematic review.

Published in:

Expert Opinion on Drug Safety, 2020, v. 19, n. 9, p. 1069, doi. 10.1080/14740338.2020.1807002

By:

Ng, Huah Shin;
Rosenbult, Constanza Luzon;
Tremlett, Helen

Publication type:

Article

THE AUTHORS REPLY.

Published in:

American Journal of Epidemiology, 2016, v. 184, n. 11, p. 857, doi. 10.1093/aje/kww158

By:

Ehsanul Karim, Mohammad;
Gustafson, Paul;
Petkau, John;
Tremlett, Helen

Publication type:

Article

Comparison of Statistical Approaches for Dealing With Immortal Time Bias in Drug Effectiveness Studies.

Published in:

American Journal of Epidemiology, 2016, v. 184, n. 4, p. 325, doi. 10.1093/aje/kwv445

By:

Karim, Mohammad Ehsanul;
Gustafson, Paul;
Petkau, John;
Tremlett, Helen

Publication type:

Article

Marginal Structural Cox Models for Estimating the Association Between β-Interferon Exposure and Disease Progression in a Multiple Sclerosis Cohort.

Published in:

2014

By:

Karim, Mohammad Ehsanul;
Gustafson, Paul;
Petkau, John;
Zhao, Yinshan;
Shirani, Afsaneh;
Kingwell, Elaine;
Evans, Charity;
van der Kop, Mia;
Oger, Joel;
Tremlett, Helen

Publication type:

Journal Article

Marginal Structural Cox Models for Estimating the Association Between β-Interferon Exposure and Disease Progression in a Multiple Sclerosis Cohort.

Published in:

American Journal of Epidemiology, 2014, v. 180, n. 2, p. 160, doi. 10.1093/aje/kwu125

By:

Karim, Mohammad Ehsanul;
Gustafson, Paul;
Petkau, John;
Zhao, Yinshan;
Shirani, Afsaneh;
Kingwell, Elaine;
Evans, Charity;
van der Kop, Mia;
Oger, Joel;
Tremlett, Helen

Publication type:

Article

Disease-modifying therapies used to treat multiple sclerosis and the gut microbiome: a systematic review.

Published in:

Journal of Neurology, 2024, v. 271, n. 3, p. 1108, doi. 10.1007/s00415-023-12107-0

By:

Tsai, Chia-Chen;
Jette, Sophia;
Tremlett, Helen

Publication type:

Article

Multiple sclerosis in men: management considerations.

Published in:

Journal of Neurology, 2016, v. 263, n. 7, p. 1263, doi. 10.1007/s00415-015-8005-z

By:

Bove, Riley;
McHenry, Allison;
Hellwig, Kerstin;
Houtchens, Maria;
Razaz, Neda;
Smyth, Penelope;
Tremlett, Helen;
Sadovnick, A.;
Rintell, D.

Publication type:

Article

High incidence and increasing prevalence of multiple sclerosis in British Columbia, Canada: findings from over two decades (1991-2010).

Published in:

Journal of Neurology, 2015, v. 262, n. 10, p. 2352, doi. 10.1007/s00415-015-7842-0

By:

Kingwell, Elaine;
Zhu, Feng;
Marrie, Ruth;
Fisk, John;
Wolfson, Christina;
Warren, Sharon;
Profetto-McGrath, Joanne;
Svenson, Lawrence;
Jette, Nathalie;
Bhan, Virender;
Yu, B.;
Elliott, Lawrence;
Tremlett, Helen

Publication type:

Article

Obstetrical epidural and spinal anesthesia in multiple sclerosis.

Published in:

Journal of Neurology, 2013, v. 260, n. 10, p. 2620, doi. 10.1007/s00415-013-7035-7

By:

Lu, Ellen;
Zhao, Yinshan;
Dahlgren, Leanne;
Preston, Roanne;
Kop, Mia;
Synnes, Anne;
Sadovnick, A.;
Traboulsee, Anthony;
Tremlett, Helen

Publication type:

Article

Natural history comparisons of primary and secondary progressive multiple sclerosis reveals differences and similarities.

Published in:

Journal of Neurology, 2009, v. 256, n. 3, p. 374, doi. 10.1007/s00415-009-0039-7

By:

Tremlett, Helen;
Yinshan Zhao;
Devonshire, Virginia

Publication type:

Article

Interrogation of the Multiple Sclerosis Prodrome Using High-Dimensional Health Data.

Published in:

Neuroepidemiology, 2020, v. 54, n. 2, p. 140, doi. 10.1159/000505331

By:

Zhao, Yinshan;
Wijnands, José M.A.;
Högg, Tanja;
Kingwell, Elaine;
Zhu, Feng;
Evans, Charity;
Fisk, John D.;
Marrie, Ruth Ann;
Tremlett, Helen

Publication type:

Article

Causes that Contribute to the Excess Mortality Risk in Multiple Sclerosis: A Population-Based Study.

Published in:

Neuroepidemiology, 2020, v. 54, n. 2, p. 131, doi. 10.1159/000504804

By:

Kingwell, Elaine;
Zhu, Feng;
Evans, Charity;
Duggan, Thomas;
Oger, Joel;
Tremlett, Helen

Publication type:

Article

Feasibility of Using a Nationally Representative Telephone Survey to Monitor Multiple Sclerosis Prevalence in the United States.

Published in:

Neuroepidemiology, 2020, v. 54, n. 2, p. 123, doi. 10.1159/000504050

By:

Buka, Stephen L.;
Wallin, Mitch T.;
Culpepper, William J.;
Lee, Younga H.;
Marrie, Ruth Ann;
Nelson, Lorene M.;
Kaye, Wendy E.;
Wagner, Laurie;
Tremlett, Helen;
Campbell, Jon;
LaRocca, Nicholas

Publication type:

Article

Comorbidities Are Associated with Altered Health Services Use in Multiple Sclerosis: A Prospective Cohort Study.

Published in:

Neuroepidemiology, 2018, v. 51, n. 1/2, p. 1, doi. 10.1159/000488799

By:

McKay, Kyla A.;
Marrie, Ruth Ann;
Fisk, John D.;
Patten, Scott B.;
Tremlett, Helen

Publication type:

Article

Disease-Modifying Therapies and Adherence in Multiple Sclerosis: Comparing Patient Self-Report with Pharmacy Records.

Published in:

Neuroepidemiology, 2017, v. 48, n. 3/4, p. 124, doi. 10.1159/000477771

By:

McKay, Kyla a.;
Evans, Charity;
Fisk, John D.;
Patten, Scott B.;
Fiest, Kirsten;
Marrie, Ruth ann;
Tremlett, Helen

Publication type:

Article

The Utility of Administrative Data for Surveillance of Comorbidity in Multiple Sclerosis: A Validation Study.

Published in:

Neuroepidemiology, 2013, v. 40, n. 2, p. 85, doi. 10.1159/000343188

By:

Marrie, Ruth ann;
Yu, Bo Nancy;
Leung, Stella;
Elliott, Lawrence;
Caetano, Patricia;
Warren, Sharon;
Wolfson, Christina;
Patten, Scott B.;
Svenson, Lawrence W.;
Tremlett, Helen;
Fisk, John;
Blanchard, James F.

Publication type:

Article

The Incidence and Prevalence of Thyroid Disease Do Not Differ in the Multiple Sclerosis and General Populations: A Validation Study Using Administrative Data.

Published in:

Neuroepidemiology, 2012, v. 39, n. 2, p. 135, doi. 10.1159/000339757

By:

Marrie, Ruth Ann;
Yu, Bo Nancy;
Leung, Stella;
Elliott, Lawrence;
Warren, Sharon;
Wolfson, Christina;
Tremlett, Helen;
Fisk, John;
Blanchard, James

Publication type:

Article

Monthly Ambient Sunlight, Infections and Relapse Rates in Multiple Sclerosis.

Published in:

Neuroepidemiology, 2008, v. 31, n. 4, p. 271, doi. 10.1159/000166602

By:

Tremlett, Helen;
van der Mei, Ingrid A.F.;
Pittas, Fotini;
Blizzard, Leigh;
Paley, Glenys;
Mesaros, Desiree;
Woodbaker, Richard;
Nunez, Manuel;
Dwyer, Terence;
Taylor, Bruce V.;
Ponsonby, Anne-Louise

Publication type:

Article

Meta-analysis identifies common gut microbiota associated with multiple sclerosis.

Published in:

Genome Medicine, 2024, v. 16, n. 1, p. 1, doi. 10.1186/s13073-024-01364-x

By:

Lin, Qingqi;
Dorsett, Yair;
Mirza, Ali;
Tremlett, Helen;
Piccio, Laura;
Longbrake, Erin E.;
Choileain, Siobhan Ni;
Hafler, David A.;
Cox, Laura M.;
Weiner, Howard L.;
Yamamura, Takashi;
Chen, Kun;
Wu, Yufeng;
Zhou, Yanjiao

Publication type:

Article

Incidence rate and prevalence of pediatric‐onset multiple sclerosis in Sweden: A population‐based register study.

Published in:

European Journal of Neurology, 2024, v. 31, n. 5, p. 1, doi. 10.1111/ene.16253

By:

Sandesjö, Fredrik;
Tremlett, Helen;
Fink, Katharina;
Marrie, Ruth Ann;
Zhu, Feng;
Wickström, Ronny;
McKay, Kyla A.

Publication type:

Article

Effects of seasons on magnetic resonance imaging-measured disease activity in patients with multiple sclerosis.

Published in:

2001

By:

Tremlett, Helen;
Tremlett, H

Publication type:

commentary

(NPP02) Gut Microbiota and Physical Activity in Pediatric-Onset Multiple Sclerosis.

Published in:

International Journal of MS Care, 2024, v. 26, p. 71

By:

Da Silva, Tania;
Stephens, Samantha;
Feng Zhu;
Arnold, Douglas L.;
Banwell, Brenda;
Bar-Or, Amit;
Bernstein, Charles N.;
Bonner, Christine;
Graham, Morag;
O'Mahony, Julia;
Marrie, Ruth Ann;
Mirza, Ali I.;
Waubant, Emmanuelle;
Yinshan Zhao;
Tremlett, Helen;
E. Ann Yeh

Publication type:

Article

Diagnoses of Depression and Anxiety Versus Current Symptoms and Quality of Life in Multiple Sclerosis.

Published in:

International Journal of MS Care, 2018, v. 20, n. 2, p. 76, doi. 10.7224/1537-2073.2016-110

By:

Marrie, Ruth Ann;
Patten, Scott B.;
Berrigan, Lindsay I.;
Tremlett, Helen;
Wolfson, Christina;
Warren, Sharon;
Leung, Stella;
Fiest, Kirsten M.;
McKay, Kyla A.;
Fisk, John D.

Publication type:

Article

Fatigue and Comorbidities in Multiple Sclerosis.

Published in:

International Journal of MS Care, 2016, v. 18, n. 2, p. 96, doi. 10.7224/1537-2073.2015-070

By:

Fiest, Kirsten M.;
Fisk, John D.;
Patten, Scott B.;
Tremlett, Helen;
Wolfson, Christina;
Warren, Sharon;
McKay, Kyla A.;
Berrigan, Lindsay I.;
Marrie, Ruth Ann

Publication type:

Article

Drug exposure and the risk of multiple sclerosis: A systematic review.

Published in:

Pharmacoepidemiology & Drug Safety, 2018, v. 27, n. 2, p. 133, doi. 10.1002/pds.4357

By:

Yong, Heather Y.;
McKay, Kyla A.;
Daley, Cole G. J.;
Tremlett, Helen

Publication type:

Article

Adherence to disease-modifying therapies for multiple sclerosis and subsequent hospitalizations.

Published in:

Pharmacoepidemiology & Drug Safety, 2017, v. 26, n. 6, p. 702, doi. 10.1002/pds.4207

By:

Evans, Charity;
Marrie, Ruth Ann;
Zhu, Feng;
Leung, Stella;
Lu, Xinya;
Kingwell, Elaine;
Zhao, Yinshan;
Tremlett, Helen

Publication type:

Article

Association between the use of selective serotonin reuptake inhibitors and multiple sclerosis disability progression.

Published in:

Pharmacoepidemiology & Drug Safety, 2016, v. 25, n. 10, p. 1150, doi. 10.1002/pds.4031

By:

Zhang, Tingting;
Kingwell, Elaine;
De Jong, Hilda JI;
Zhu, Feng;
Zhao, Yinshan;
Carruthers, Robert;
Petkau, John;
Gustafson, Paul;
Oger, Joel;
Tremlett, Helen

Publication type:

Article

Association between beta-interferon exposure and hospital events in multiple sclerosis.

Published in:

Pharmacoepidemiology & Drug Safety, 2014, v. 23, n. 11, p. 1213, doi. 10.1002/pds.3667

By:

Evans, Charity;
Zhu, Feng;
Kingwell, Elaine;
Shirani, Afsaneh;
Kop, Mia L.;
Petkau, John;
Gustafson, Paul;
Zhao, Yinshan;
Oger, Joel;
Tremlett, Helen

Publication type:

Article

Adherence to the immunomodulatory drugs for multiple sclerosis: contrasting factors affect stopping drug and missing doses.

Published in:

Pharmacoepidemiology & Drug Safety, 2008, v. 17, n. 6, p. 565, doi. 10.1002/pds.1593

By:

Tremlett, Helen;
Van der Mei, Ingrid;
Pittas, Fotini;
Blizzard, Leigh;
Paley, Glenys;
Dwyer, Terence;
Taylor, Bruce;
Ponsonby, Anne-Louise

Publication type:

Article

Investigation of health care use and a possible prodrome before the first attack in NMOSD and MOGAD.

Published in:

Multiple Sclerosis Journal, 2024, v. 30, n. 10, p. 1331, doi. 10.1177/13524585241272939

By:

Rotstein, Dalia L;
Freedman, Mark S;
Konig, Andrea;
Lee, Liesly;
Luo, Jin;
Maxwell, Colleen;
Morrow, Sarah A;
Tremlett, Helen;
Vyas, Manav V;
Marrie, Ruth Ann

Publication type:

Article

Low socioeconomic status was associated with a higher mortality risk in multiple sclerosis.

Published in:

Multiple Sclerosis Journal, 2023, v. 29, n. 3, p. 466, doi. 10.1177/13524585221129963

By:

Calocer, Floriane;
Ng, Huah Shin;
Zhu, Feng;
Zhao, Yinshan;
Dejardin, Olivier;
Leray, Emmanuelle;
Defer, Gilles;
Evans, Charity;
Fisk, John D;
Marrie, Ruth Ann;
Tremlett, Helen

Publication type:

Article

Polypharmacy and multiple sclerosis: A population-based study.

Published in:

Multiple Sclerosis Journal, 2023, v. 29, n. 1, p. 107, doi. 10.1177/13524585221122207

By:

Chertcoff, Anibal;
Ng, Huah Shin;
Zhu, Feng;
Zhao, Yinshan;
Tremlett, Helen

Publication type:

Article

Stability of the gut microbiota in persons with paediatric-onset multiple sclerosis and related demyelinating diseases.

Published in:

Multiple Sclerosis Journal, 2022, v. 28, n. 11, p. 1819, doi. 10.1177/13524585221079533

By:

Liang, Geoffrey;
Zhu, Feng;
Mirza, Ali I;
Bar-Or, Amit;
Bernstein, Charles N;
Bonner, Christine;
Forbes, Jessica D;
Graham, Morag;
Hart, Janace;
Knox, Natalie C;
Marrie, Ruth Ann;
O'Mahony, Julia;
Van Domselaar, Gary;
Yeh, E Ann;
Zhao, Yinshan;
Banwell, Brenda;
Waubant, Emmanuelle;
Tremlett, Helen

Publication type:

Article

Emergency department use by persons with MS: A population-based descriptive study with a focus on infection-related visits.

Published in:

Multiple Sclerosis Journal, 2022, v. 28, n. 11, p. 1825, doi. 10.1177/13524585221078497

By:

Graf, Jonas;
Ng, Huah Shin;
Zhu, Feng;
Zhao, Yinshan;
Wijnands, José MA;
Evans, Charity;
Fisk, John D;
Marrie, Ruth Ann;
Tremlett, Helen

Publication type:

Article

Disease-modifying drugs for multiple sclerosis and subsequent health service use.

Published in:

Multiple Sclerosis Journal, 2022, v. 28, n. 4, p. 583, doi. 10.1177/13524585211063403

By:

Ng, Huah Shin;
Zhu, Feng;
Kingwell, Elaine;
Zhao, Yinshan;
Yao, Shenzhen;
Ekuma, Okechukwu;
Svenson, Lawrence W;
Evans, Charity;
Fisk, John D;
Marrie, Ruth Ann;
Tremlett, Helen

Publication type:

Article

Care consumption of people with multiple sclerosis: A multichannel sequence analysis in a population-based setting in British Columbia, Canada.

Published in:

Multiple Sclerosis Journal, 2022, v. 28, n. 2, p. 309, doi. 10.1177/13524585211016726

By:

Roux, Jonathan;
Kingwell, Elaine;
Zhu, Feng;
Tremlett, Helen;
Leray, Emmanuelle

Publication type:

Article

The multiple sclerosis prodrome is just unspecific symptoms in radiologically isolated syndrome patients – No.

Published in:

Multiple Sclerosis Journal, 2021, v. 27, n. 12, p. 1824, doi. 10.1177/13524585211035951

By:

Tremlett, Helen;
Okuda, Darin T;
Lebrun-Frenay, Christine

Publication type:

Article

A multiple sclerosis disease progression measure based on cumulative disability.

Published in:

Multiple Sclerosis Journal, 2021, v. 27, n. 12, p. 1875, doi. 10.1177/1352458520988632

By:

Manouchehrinia, Ali;
Kingwell, Elaine;
Zhu, Feng;
Tremlett, Helen;
Hillert, Jan;
Ramanujam, Ryan

Publication type:

Article