Overview

I am a perinatal epidemiologist with a clinical background in obstetrical nursing. I undertake clinical trials to evaluate methods of pregnancy and labour management and interventions for mothers at particularly high risk for experiencing adverse perinatal outcomes. I use the British Columbia Reproductive Care Program Perinatal Registry linked to Ministry of Health data to evaluate outcomes and cost of specific methods of delivering obstetrical care.

Publications

2009 IOM guidelines for gestational weight gain: how well do they predict outcomes across ethnic groups?
Ethnicity & Health
Amal R. Khanolkar, Gillian E. Hanley, Ilona Koupil, Patricia A. Janssen
DOI: 10.1080/13557858.2017.1398312
11/2017

Does Molimina Indicate Ovulation?
Canadian Journal of Diabetes
Azita Goshtasebi, Shirin Kalyan, Chiaki Konishi, Christine Hitchcock, Anthony Cheung, Patricia Janssen, Nichole Fairbrother, Jerilynn Prior
DOI: 10.1016/j.jcjd.2017.08.111
10/2017

A systematic review of nonpharmacological prenatal interventions for pregnancy-specific anxiety and fear of childbirth
Birth
Kathrin Stoll, Emma Marie Swift, Nichole Fairbrother, Elizabeth Nethery, Patricia Janssen
DOI: 10.1111/birt.12316
10/2017

SmartMom Text Messaging for Prenatal Education: A Qualitative Focus Group Study to Explore Canadian Women’s Perceptions
JMIR Public Health and Surveillance
Sarah Munro, Amber Hui, Vanessa Salmons, Carolyn Solomon, Emily Gemmell, Nahal Torabi, Patricia A Janssen
DOI: 10.2196/publichealth.6949
02/2017

Evaluation of a Patient Education Pamphlet for Women Considering Vaginal Birth After Cesarean
The Journal of Perinatal Education
Sarah Munro, Kathryn Dewar, Elizabeth Wilcox, Michael C. Klein, Patricia A. Janssen
DOI: 10.1891/1058-1243.26.1.37
01/2017

A Predictive Model for Cesarean Among Low-Risk Nulliparous Women in Spontaneous Labor at Hospital Admission
Birth
Patricia A. Janssen, Jozette J. C. Stienen, Rollin Brant, Gillian E. Hanley
DOI: 10.1111/birt.12257
10/2016

Methodological Challenges in a Manitoba Study of Provider Type and Perinatal Outcomes Using Hospital Discharge Data
Birth
Daphne McRae, Kathrin Stoll, Patricia Janssen
DOI: 10.1111/birt.12243
08/2016

Perinatal anxiety disorder prevalence and incidence
Journal of Affective Disorders
Nichole Fairbrother, Patricia Janssen, Martin M. Antony, Emma Tucker, Allan H. Young
DOI: 10.1016/j.jad.2015.12.082
08/2016

Social Support and Exclusive Breast feeding among Canadian Women
Paediatric and Perinatal Epidemiology
Chris M. Laugen, Nazrul Islam, Patricia A. Janssen
DOI: 10.1111/ppe.12303
06/2016

Prenatal supplementation with Corn Soya Blend Plus reduces the risk of maternal anemia in late gestation and lowers the rate of preterm birth but does not significantly improve maternal weight gain and birth anthropometric measurements in rural Cambodian women: a randomized trial1
The American Journal of Clinical Nutrition
Amynah Janmohamed, Crystal D Karakochuk, Somchit Boungnasiri, Gwen E Chapman, Patricia A Janssen, Rollin Brant, Timothy J Green, Judy McLean
DOI: 10.3945/ajcn.114.104034
02/2016

Lifetime substance use as a predictor of postpartum mental health
Archives of Women's Mental Health
Betty-Shannon Prevatt, Sarah L. Desmarais, Patricia A. Janssen
DOI: 10.1007/s00737-016-0694-5
2016

Depression and anxiety during the perinatal period
BMC Psychiatry
Nichole Fairbrother, Allan H. Young, Patricia Janssen, Martin M. Antony, Emma Tucker
DOI: 10.1186/s12888-015-0526-6
08/2015

Costs of Planned Home vs. Hospital Birth in British Columbia Attended by Registered Midwives and Physicians
PLOS ONE
Patricia A. Janssen, Craig Mitton, Jaafar Aghajanian
DOI: 10.1371/journal.pone.0133524
07/2015

Maternal and newborn outcomes after a prior cesarean birth by planned mode of delivery and history of prior vaginal birth in British Columbia: a retrospective cohort study
CMAJ Open
C. D. Bickford, P. A. Janssen
DOI: 10.9778/cmajo.20140055
04/2015

A balancing act in an unknown territory: A metasynthesis of first-time mothers¿ experiences in early labour
Midwifery
Tine S. Eri, Terese Bondas, Mechthild M. Gross, Patricia Janssen, Josephine M. Green
DOI: 10.1016/j.midw.2014.11.007
03/2015

Newborn Outcomes in British Columbia After Caesarean Section for Non-Reassuring Fetal Status
Journal of Obstetrics and Gynaecology Canada
Kevin Jenniskens, Patricia A. Janssen
DOI: 10.1016/s1701-2163(15)30306-6
03/2015

Home birth study fails to identify credentials of midwives conducting home birth
American Journal of Obstetrics and Gynecology
Karine Vallee-Pouliot, Patricia Janssen, Eileen Hutton
DOI: 10.1016/j.ajog.2014.10.028
02/2015

Quality of prenatal care questionnaire: instrument development and testing
BMC Pregnancy and Childbirth
Maureen I Heaman, Wendy A Sword, Noori Akhtar-Danesh, Amanda Bradford, Suzanne Tough, Patricia A Janssen, David C Young, Dawn A Kingston, Eileen K Hutton, Michael E Helewa
DOI: 10.1186/1471-2393-14-188
06/2014

Women’s perception of pre-hospital labour duration and obstetrical outcomes; a prospective cohort study
BMC Pregnancy and Childbirth
Patricia A Janssen, Sandra Weissinger
DOI: 10.1186/1471-2393-14-182
05/2014

Intimate partner abuse before and during pregnancy as risk factors for postpartum mental health problems
BMC Pregnancy and Childbirth
Sarah L Desmarais, Ashley Pritchard, Evan M Lowder, Patricia A Janssen
DOI: 10.1186/1471-2393-14-132
04/2014

Why are young Canadians afraid of birth? A survey study of childbirth fear and birth preferences among Canadian University students
Midwifery
Kathrin Stoll, Wendy Hall, Patricia Janssen, Elaine Carty
DOI: 10.1016/j.midw.2013.07.017
02/2014

Ethnicity-specific birthweight distributions improve identification of term newborns at risk for short-term morbidity
American Journal of Obstetrics and Gynecology
Gillian E. Hanley, Patricia A. Janssen
DOI: 10.1016/j.ajog.2013.06.042
11/2013

Development and psychometric properties of the Early Labour Experience Questionnaire (ELEQ)
Midwifery
Patricia A. Janssen, Sarah L. Desmarais
DOI: 10.1016/j.midw.2012.05.012
03/2013

Women's experience with early labour management at home vs. in hospital: A randomised controlled trial
Midwifery
Patricia A. Janssen, Sarah L. Desmarais
DOI: 10.1016/j.midw.2012.05.011
03/2013

Prevalence of Abuse and Violence Before, During, and After Pregnancy in a National Sample of Canadian Women
American Journal of Public Health
Nihaya Daoud, Marcelo L. Urquia, Patricia O'Campo, Maureen Heaman, Patricia A. Janssen, Janet Smylie, Kellie Thiessen
DOI: 10.2105/ajph.2012.300843
10/2012

Effect of a collaborative interdisciplinary maternity care program on perinatal outcomes
Canadian Medical Association Journal
S. J. Harris, P. A. Janssen, L. Saxell, E. A. Carty, G. S. MacRae, K. L. Petersen
DOI: 10.1503/cmaj.111753
09/2012

Ethnicity-Specific Growth Distributions for Prediction of Newborn Morbidity
Journal of Obstetrics and Gynaecology Canada
Gillian E. Hanley, Patricia A. Janssen
DOI: 10.1016/s1701-2163(16)35380-4
09/2012

For women with term low-risk pregnancies, risk of perinatal mortality and intrapartum morbidity similar across planned places of birth
Evidence Based Medicine
Patricia A Janssen
DOI: 10.1136/ebmed-2012-100549
04/2012

Fetal oxygenation measurement using wireless near infrared spectroscopy
Optical Diagnostics and Sensing XII: Toward Point-of-Care Diagnostics; and Design and Performance Validation of Phantoms Used in Conjunction with Optical Measurement of Tissue IV
Andrew Macnab, Babak Shadgan, Patricia Janssen, Dan Rurak
DOI: 10.1117/12.906243
02/2012

Massage Therapy and Labor Outcomes: a Randomized Controlled Trial
International Journal of Therapeutic Massage & Bodywork: Research, Education, & Practice
Patricia Janssen, PhD, Farah Shroff, PhD, Paula Jaspar, RMT
DOI: 10.3822/ijtmb.v5i4.164
2012

Auricular acupuncture for chemically dependent pregnant women: a randomized controlled trial of the NADA protocol
Substance Abuse Treatment, Prevention, and Policy
Patricia A Janssen, Louise C Demorest, Anne Kelly, Paul Thiessen, Ron Abrahams
DOI: 10.1186/1747-597x-7-48
2012

Prediction of Repeat Visits by Victims of Intimate Partner Violence to a Level III Trauma Centre
ISRN Emergency Medicine
Patricia Janssen, Kathleen Mackay
DOI: 10.5402/2012/484681
2012

Risk factors for postpartum depression among abused and nonabused women
American Journal of Obstetrics and Gynecology
Patricia A. Janssen, Maureen I. Heaman, Marcelo L. Urquia, Patricia J. O'Campo, Kellie R. Thiessen
DOI: 10.1016/j.ajog.2012.09.022
2012

Interventions for preventing or reducing domestic violence against pregnant women
Cochrane Database of Systematic Reviews
Shayesteh Jahanfar, Patricia A Janssen, Louise Howard
DOI: 10.1002/14651858.cd009414
11/2011

Experiences of violence before and during pregnancy and adverse pregnancy outcomes: An analysis of the Canadian Maternity Experiences Survey
BMC Pregnancy and Childbirth
Marcelo L Urquia, Patricia J O'Campo, Maureen I Heaman, Patricia A Janssen, Kellie R Thiessen
DOI: 10.1186/1471-2393-11-42
06/2011

Time for improved standards for studies of home birth
American Journal of Obstetrics and Gynecology
Patricia Alice Janssen, Michael C. Klein
DOI: 10.1016/j.ajog.2010.04.042
11/2010

The Effect of Maternal Age on Adverse Birth Outcomes: Does Parity Matter?
Journal of Obstetrics and Gynaecology Canada
Sarka Lisonkova, Patricia A. Janssen, Sam B. Sheps, Shoo K. Lee, Leanne Dahlgren
DOI: 10.1016/s1701-2163(16)34522-4
06/2010

Regional Variation in the Cesarean Delivery and Assisted Vaginal Delivery Rates
Obstetrics & Gynecology
Gillian E. Hanley, Patricia A. Janssen, Devon Greyson
DOI: 10.1097/aog.0b013e3181dd918c
06/2010

Family Violence and Maternal Mortality in the South Asian Community: The Role of Obstetrical Care Providers
Journal of Obstetrics and Gynaecology Canada
Patricia A. Janssen, Angela D. Henderson, Kathleen L. MacKay
DOI: 10.1016/s1701-2163(16)34349-3
11/2009

Outcomes of planned home birth with registered midwife versus planned hospital birth with midwife or physician
Canadian Medical Association Journal
P. A. Janssen, L. Saxell, L. A. Page, M. C. Klein, R. M. Liston, S. K. Lee
DOI: 10.1503/cmaj.081869
08/2009

Peer Support using a Mobile Access Van Promotes Safety and Harm Reduction Strategies among Sex Trade Workers in Vancouver’s Downtown Eastside
Journal of Urban Health
Patricia A. Janssen, Kate Gibson, Raven Bowen, Patricia M. Spittal, Karen L. Petersen
DOI: 10.1007/s11524-009-9376-1
06/2009

Development and evaluation of a Chinese-language newborn feeding hotline: A prospective cohort study
BMC Pregnancy and Childbirth
Patricia A Janssen, Verity H Livingstone, Bruce Chang, Michael C Klein
DOI: 10.1186/1471-2393-9-3
01/2009

Roundtable Discussion: Early Labor: What's the Problem?
Birth
Patricia Janssen, Mary L. Nolan, Helen Spiby, Josephine Green, Mechthild M. Gross, Helen Cheyne, Vanora Hundley, Marlies Rijnders, Ank de Jonge, Simone Buitendijk
DOI: 10.1111/j.1523-536x.2009.00361.x
2009

The Experience of Planned Home Birth: Views of the First 500 Women
Birth
Patricia A. Janssen, Angela D. Henderson, Saraswathi Vedam
DOI: 10.1111/j.1523-536x.2009.00357.x
2009

Outcomes of Planned Hospital Birth Attended by Midwives Compared with Physicians in British Columbia
Obstetrical & Gynecological Survey
Patricia A. Janssen, Elizabeth M. Ryan, Duncan J. Etches, Michael C. Klein, Birgit Reime
DOI: 10.1097/01.ogx.0000286561.96746.91
11/2007

Outcomes of Planned Hospital Birth Attended by Midwives Compared with Physicians in British Columbia
Birth
Patricia A. Janssen, Elizabeth M. Ryan, Duncan J. Etches, Michael C. Klein, Birgit Reime
DOI: 10.1111/j.1523-536x.2007.00160.x
06/2007

Early Labor Assessment and Support at Home Versus Telephone Triage: A Randomized Controlled Trial
Obstetrical & Gynecological Survey
Patricia A. Janssen, Douglas K. Still, Michael C. Klein, Joel Singer, Elaine A. Carty, Robert M. Liston, John A. Zupancic
DOI: 10.1097/01.ogx.0000261666.06536.30
05/2007

Bone strength and its determinants in pre- and early pubertal boys and girls
Bone
Heather Macdonald, Saija Kontulainen, Moira Petit, Patricia Janssen, Heather McKay
DOI: 10.1016/j.bone.2006.02.057
09/2006

Satisfaction With Planned Place of Birth Among Midwifery Clients in British Columbia
Journal of Midwifery & Women's Health
P JANSSEN, E CARTY, B REIME
DOI: 10.1016/j.jmwh.2005.10.012
03/2006

Early Labor Assessment and Support at Home Versus Telephone TriageA Randomized Controlled Trial
Obstetrics & Gynecology
Patricia A. Janssen, Douglas K. Still, Michael C. Klein, Joel Singer, Elaine A. Carty, Robert M. Liston, John A. Zupancic
DOI: 10.1097/01.aog.0000247644.64154.bb
2006

Development and psychometric testing of the care in obstetrics: Measure for testing satisfaction (COMFORTS) scale
Research in Nursing & Health
Patricia A. Janssen, Cindy-Lee Dennis, Birgit Reime
DOI: 10.1002/nur.20112
2006

Acupuncture for Substance Abuse Treatment in the Dowtown Eastside of Vancouver
Journal of Urban Health: Bulletin of the New York Academy of Medicine
P. A. Janssen
DOI: 10.1093/jurban/jti054
05/2005

Of Mice and MenWill the Intersection of Social Science and Genetics Create New Approaches for Intimate Partner Violence?
Journal of Interpersonal Violence
Patricia A. Janssen, Tonia L. Nicholls, Ravinesh A. Kumar, Harry Stefanakis, Alicia L. Spidel, Elizabeth M. Simpson
DOI: 10.1177/0886260504268120
01/2005

Outcomes of Planned Hospital Birth Attended by Midwives vs Physicians in British Columbia
Journal of Midwifery & Women's Health
Patricia A. Janssen, Birgit Reime, Elizabeth R. Ryan, Duncan J. Etches
DOI: 10.1111/j.1542-2011.2004.tb04449.x
09/2004

Ethnic Chinese women's perceptions about condoms, withdrawal and rhythm methods of birth control
Contraception
Ellen R. Wiebe, Patricia A. Janssen, Angela Henderson, Iris Fung
DOI: 10.1016/j.contraception.2004.01.006
06/2004

Assessing for Domestic Violence Exposure in Primary Care Settings: The Transition from Classroom to Clinical Practice
Journal of Interpersonal Violence
PATRICIA A. JANSSEN, MONICA A. LANDOLT, ANTON F. GRUNFELD
DOI: 10.1177/0886260503018006003
06/2003

Assessing for Domestic Violence Exposure in Primary Care SettingsThe Transition from Classroom to Clinical Practice
Journal of Interpersonal Violence
Patricia A. Janssen, Monica A. Landolt, Anton F. Grunfeld
DOI: 10.1177/0886260503251133
06/2003

An evaluation of process and protocols for planned home birth attended by regulated midwives in British Columbia
Journal of Midwifery & Women's Health
Patricia A. Janssen, Shoo K. Lee, Elizabeth R. Ryan, Lee Saxell
DOI: 10.1016/s1526-9523(02)00418-x
03/2003

Single Room Maternity Care: The Nursing Response
Birth
Patricia A. Janssen, Susan J. Harris, Jetty Soolsma, Michael C. Klein, Laurie C. Seymour
DOI: 10.1046/j.1523-536x.2001.00173.x
09/2001

Universal screening for domestic violence in abortion
Women's Health Issues
Ellen R Wiebe, Patricia Janssen
DOI: 10.1016/s1049-3867(01)00074-3
09/2001

Domestic Violence EducationFrom the Classroom to the Real World
Academic Medicine
Daniel E. Roth, Patricia A. Janssen, Monica A. Landolt, Anton F. Grunfeld
DOI: 10.1097/00001888-200101000-00004
01/2001

Time lost from work among women choosing medical or surgical abortions
Women's Health Issues
Ellen R Wiebe, Patricia Janssen
DOI: 10.1016/s1049-3867(00)00061-x
11/2000

Silicone Breast Implants: What do we know about their long-term effects?
AWHONN Clinical Lifelines
Barbara Arthur and Patricia A. Janssen
DOI: 10.1111/j.1552-6356.2000.tb01205.x
10/2000

Single Room Maternity Care and Client Satisfaction
Birth
Patricia A Janssen, Michael C Klein, Susan J Harris, Jetty Soolsma, Laurie C Seymour
DOI: 10.1046/j.1523-536x.2000.00235.x
2000

Vaginal sonography and gender preference for sonographer
Journal of Clinical Ultrasound
Pamela O'Sullivan, Patricia Janssen, R. Douglas Wilson, Dorothy Shaw
DOI: 10.1002/(sici)1097-0096(199901)27:13.0.co;2-v
01/1999

The prevalence of domestic violence among obstetric nurses
Women's Health Issues
Patricia A. Janssen, Melanie C. Basso, Roberta M. Costanzo
DOI: 10.1016/s1049-3867(98)00023-1
09/1998

Factors Influencing Perineal Trauma during Delivery
Journal SOGC
Michael C. Klein, Patricia A. Janssen
DOI: 10.1016/s0849-5831(98)80006-2
02/1998

Authors' Reply
Paediatric and Perinatal Epidemiology
PATRICIA A. JANSSEN, STEPHEN M. SCHWARTZ
DOI: 10.1111/j.1365-3016.1996.tb00075.x
10/1996

Research

Current Projects
I am validating new standards for intrauterine growth stratified on sex and ethnicity. I have completed a large CIHR-funded multicentre trial of early labour management and am currently studying risk factors for prolonged latent phase labour.



I lead a knowledge translation initiative named Optimal Birth BC which is aimed at reducing variation in rates of caesarean section across B.C.’s health authorities. As part of Optimal Birth BC, I am conducting studies to evaluate the diagnosis and management of dystocia and adherence to clinical practice guidelines for diagnosis and management of fetal distress in labour.



I am also studying trajectories of women released from provincial prisons and developing predictive measures of recidivism based on health and social networking parameters.

Honours & Awards

Killam Teaching Prize, 2010

Distinguished Alumni of the Year, University of Washington, School of Public Health and Community Medicine, 2011

President’s Award for Public Education through Media, 2010

Research Group Members

Kathrin Stoll
Kelsey Martin
Warren Michelow
Elizabeth Nethery