Janie Coulombe, Université de Montréal

Research

Read how they describe their research on their Université de Montréal profile.

Adaptive treatment strategies Causal inference Confounding Dynamic treatment regimes Efficiency Irregular monitoring times Missing data Observational data

Latest papers

National healthcare-associated infections surveillance programs - comparison between provincial and national case definitions in Canada.
Population health metrics · 2026 · senior author
The Impact of Antihypertensive De-escalation: A Secondary Analysis of Systolic Blood Pressure Intervention Trial (SPRINT)
High Blood Pressure & Cardiovascular Prevention · 2026
Dealing with irregular and informative visits
2026 · first author

All 70 publications

Latest funding

Towards equitable hypertension care: sex differences in blood pressure targets, variability and trajectories.
CIHR · 2024 · Principal investigator
$359,552
Getting to hepatitis B elimination in Canada: Where are the gaps and how best to fill them?
CIHR · 2024 · Co-investigator
$1,239,300
Dihydropyridines for the prevention of dementia among patients with hypertension
CIHR · 2023 · Co-investigator
$210,376

All 7 grants and awards

70 publications.

01

National healthcare-associated infections surveillance programs - comparison between provincial and national case definitions in Canada.

Poirier E, Quach C, MacLaurin A, Coulombe J

Population health metrics20261 citationsSenior authorOpen Access

DOI: 10.1186/s12963-026-00508-y PMID: 42687182

02

The Impact of Antihypertensive De-escalation: A Secondary Analysis of Systolic Blood Pressure Intervention Trial (SPRINT)

Fanxing Du, Steven M. Smith, Janie Coulombe, Mark S. Segal, Adam P. Bress, Tianze Jiao

High Blood Pressure & Cardiovascular Prevention2026

DOI: 10.1007/s40292-026-00822-4 PMID: 42762428

03

Dealing with irregular and informative visits

Janie Coulombe, Johanna Muñoz, Gabrielle Simoneau, Robert William Platt, Thomas P.A. Debray

2026First author

DOI: 10.1201/9781003300809-14

04

Irregular visits in longitudinal studies: Comparing inverse intensity of visit weighting and imputation in a causal analysis of antidepressant therapeutic treatment

Janie Coulombe, Erica E. M. Moodie, Susan M. Shortreed

Canadian Journal of Statistics2026First authorOpen Access

DOI: 10.1002/cjs.70082

05

Additional file 1 of National healthcare-associated infections surveillance programs – comparison between provincial and national case definitions in Canada

Étienne Poirier, Caroline Quach, Anne MacLaurin, Janie Coulombe

Figshare2026Senior authorOpen Access

DOI: 10.6084/m9.figshare.33421497.v1

06

Additional file 1 of National healthcare-associated infections surveillance programs – comparison between provincial and national case definitions in Canada

Étienne Poirier, Caroline Quach, Anne MacLaurin, Janie Coulombe

Figshare2026Senior authorOpen Access

DOI: 10.6084/m9.figshare.33421497

07

Association Between Use of WATCHMAN Device and 1-Year Mortality Using High-Dimensional Propensity Scores to Reduce Confounding

Julie Z. Zhao, Mohammed Ruzieh, Fanxing Du, Lian Yi, Andrew Foy, Robert William Platt, Mark S. Segal, Janie Coulombe, Almut Gertrud Winterstein, Tianze Jiao

Circulation Cardiovascular Quality and Outcomes20255 citations

DOI: 10.1161/circoutcomes.124.011188 PMID: 40026152

08

Constructing optimal dynamic monitoring and treatment regimes: An application to hypertension care

Janie Coulombe, Dany El-Riachi, Fanxing Du, Tianze Jiao

arXiv (Cornell University)20251 citationsFirst authorOpen Access

DOI: 10.48550/arxiv.2501.08274

09

Gabapentinoids and Risk for Severe Exacerbation in Chronic Obstructive Pulmonary Disease : A Population-Based Cohort Study.

Rahman AA, Dell'Aniello S, Moodie EEM, Durand M, Coulombe J, Boivin JF, Suissa S, Ernst P, Renoux C

Annals of internal medicine202433 citations

DOI: 10.7326/m23-0849 PMID: 38224592

10

Multiply robust estimation of marginal structural models in observational studies subject to covariate-driven observations.

Coulombe J, Yang S

Biometrics20245 citationsFirst authorOpen Access

DOI: 10.1093/biomtc/ujae065 PMID: 39011739

Towards equitable hypertension care: sex differences in blood pressure targets, variability and trajectories.

Principal investigatorCIHR2024Project Grant

Principal investigators: Renoux, Christel; Coulombe, Janie

Keywords: Cardiovascular Disease; Cohort; Hypertension; Sex; Stroke

$359,552

Getting to hepatitis B elimination in Canada: Where are the gaps and how best to fill them?

Co-investigatorCIHR2024Project Grant

Principal investigators: Greenaway, Christina A; Janjua, Naveed Z; Sander, Beate H; Wong, William Wai Lun

Keywords: Economic Analyses; Health Disparities; Hepatitis B; Immigrants; Screening & Treatment Strategies; Vaccination

$1,239,300

Dihydropyridines for the prevention of dementia among patients with hypertension

Co-investigatorCIHR2023Project Grant

Principal investigators: Renoux, Christel

Keywords: Cohort Study; Dementia; Dihydropyridines; Electronic Medical Records; Pharmacoepidemiology

$210,376

Consistent estimation of causal effects under irregular visit times

Principal investigatorNSERC2023Discovery Grants Program - Individual

Principal investigators: Coulombe, Janie

Keywords: causal inference; irregular monitoring times; confounding; efficiency; robustness; dynamic treatment regimes; observational data; missing data; adaptive treatment strategies; semiparametric theory

$54,000

Consistent estimation of causal effects under irregular visit times

Principal investigatorNSERC2023Discovery Launch Supplement

Principal investigators: Coulombe, Janie

$12,500

Gabapentinoids and the risk of severe respiratory events in patients with chronic obstructive pulmonary disease

Co-investigatorCIHR2021Project Grant

Principal investigators: Renoux, Christel

Keywords: Cohort; Copd; Drug Safety; Gabapentinoids; Pharmacoepidemiology

$120,000

Gabapentinoids and the risk of severe respiratory events in patients with chronic obstructive pulmonary disease.

Co-investigatorCIHR2021Catalyst Grant: Breathing as One - Boehringer Ingelheim Canada COPD Grant

Principal investigators: Renoux, Christel

Keywords: Cohort; Copd; Drug Safety; Gabapentinoids; Pharmacoepidemiology

$15,000

From public funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998 with their latest competition results, the Canada Foundation for Innovation, Genome Canada, the Canadian Space Agency, Canada Research Chairs, the Fonds de recherche du Québec, Ontario research funding, Michael Smith Health Research BC, the Canadian Cancer Society, Heart & Stroke and Brain Canada.

Frequent collaborators

Charles Bernstein and Laura Targownik: 235 shared papers
Charles Bernstein and Harminder Singh: 206 shared papers
Eric Benchimol and Gilaad Kaplan: 178 shared papers
Vicky Tagalakis and Vasiliki Tagalakis: 154 shared papers
Harminder Singh and Laura Targownik: 149 shared papers
Charles Bernstein and Gilaad Kaplan: 147 shared papers
Eric Benchimol and Charles Bernstein: 120 shared papers
Charles Bernstein and Lisa Lix: 108 shared papers
Eric Benchimol and Laura Targownik: 100 shared papers
Gilaad Kaplan and Laura Targownik: 98 shared papers
Anne Griffiths and Eric Benchimol: 86 shared papers
Eric Benchimol and Geoffrey Nguyen: 83 shared papers
Anne Griffiths and Kevan Jacobson: 73 shared papers
Geoffrey Nguyen and Charles Bernstein: 68 shared papers
Lisa Lix and Laura Targownik: 67 shared papers
Samy Suissa and Pierre Ernst: 64 shared papers
Geoffrey Nguyen and Gilaad Kaplan: 63 shared papers
Eric Benchimol and Harminder Singh: 59 shared papers
Christel Renoux and Samy Suissa: 55 shared papers
Lisa Lix and Harminder Singh: 51 shared papers
Eric Benchimol and Kevan Jacobson: 50 shared papers
Anne Griffiths and Charles Bernstein: 48 shared papers
Charles Bernstein and Kevan Jacobson: 45 shared papers
Samy Suissa and Paul Brassard: 33 shared papers
Christine Chambers and Penny Corkum: 29 shared papers
Erica Moodie and Robert Platt: 24 shared papers
Christel Renoux and Robert Platt: 21 shared papers
Samy Suissa and Robert Platt: 21 shared papers
Graham Reid and Penny Corkum: 19 shared papers
Christel Renoux and Janie Coulombe: 16 shared papers
Erica Moodie and Janie Coulombe: 15 shared papers
Samy Suissa and Janie Coulombe: 15 shared papers
Madeleine Durand and Christel Renoux: 14 shared papers
Paul Brassard and Talat Bessissow: 13 shared papers
Vicky Tagalakis and Samy Suissa: 12 shared papers
Christel Renoux and Erica Moodie: 12 shared papers
Graham Reid and Christine Chambers: 12 shared papers
Samy Suissa and Vasiliki Tagalakis: 12 shared papers
Robert Platt and Pierre Ernst: 12 shared papers
Graham Reid and Janie Coulombe: 10 shared papers
Robert Platt and Janie Coulombe: 9 shared papers
Penny Corkum and Janie Coulombe: 8 shared papers
Lisa Lix and Pierre Ernst: 7 shared papers
Eric Benchimol and Talat Bessissow: 5 shared papers
Madeleine Durand and Erica Moodie: 5 shared papers
Madeleine Durand and Pierre Ernst: 5 shared papers
Vicky Tagalakis and Janie Coulombe: 5 shared papers
Penny Corkum and Meredith Bessey: 5 shared papers
Paul Brassard and Janie Coulombe: 5 shared papers
Janie Coulombe and Vasiliki Tagalakis: 5 shared papers
Geoffrey Nguyen and Talat Bessissow: 4 shared papers
Lisa Lix and Janie Coulombe: 4 shared papers
Talat Bessissow and Janie Coulombe: 4 shared papers
Janie Coulombe and Pierre Ernst: 3 shared papers
Anne Griffiths and Janie Coulombe: 2 shared papers
Eric Benchimol and Christine Chambers: 2 shared papers
Eric Benchimol and Janie Coulombe: 2 shared papers
Madeleine Durand and Janie Coulombe: 2 shared papers
Geoffrey Nguyen and Janie Coulombe: 2 shared papers
Charles Bernstein and Janie Coulombe: 2 shared papers
Gilaad Kaplan and Janie Coulombe: 2 shared papers
Christine Chambers and Janie Coulombe: 2 shared papers
Harminder Singh and Janie Coulombe: 2 shared papers
Marie Brossard-Racine and Janie Coulombe: 2 shared papers
Laura Targownik and Janie Coulombe: 2 shared papers
Meredith Bessey and Janie Coulombe: 2 shared papers
Kevan Jacobson and Janie Coulombe: 2 shared papers

Epidemiology, Biostatistics and Occupational Health
Department of Medicine
Department of Psychology & Neuroscience
Department of Paediatrics
Department of Internal Medicine
Département de mathématiques et de statistique
Department of Psychology
Other

1 shared papers, latest 2023

Jay Brophy

Department of Epidemiology, Biostatistics and Occupational Health

1 shared papers, latest 2018

Gary Wild

Department of Medicine

1 shared papers, latest 2021

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for

Paper to mentionMention their CIHR grant from 2024

Subject: Prospective PhD student: Adaptive treatment strategies Dear Professor Coulombe, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "National healthcare-associated infections surveillance programs - comparison between provincial and national case definitions in Canada." (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] I also saw your CIHR-funded project "Towards equitable hypertension care: sex differences in blood pressure targets, variability and trajectories." (2024), and I would be glad to contribute to work in that direction. Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]