Mothers with Multiple Sclerosis and Peripartum Mental Illness: A Study of 549,010 Cases
In a study of 549,010 mothers, 20.4% of those with multiple sclerosis experienced any mental illness during their first peripartum period, with 11.6% affected in the second period. Additionally, one-quarter received care for mental illness during the second period. Mothers with multiple sclerosis had a notably higher prevalence of conditions like depression and anxiety than those without similar chronic diseases.
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Why it matters
Understanding the incidence of mental illness among mothers with multiple sclerosis is crucial as it highlights their increased vulnerability during and after childbirth. This data can guide future research and healthcare policies to support affected individuals.
What this does not prove
The study's observational design prevents it from establishing any causal relationships between multiple sclerosis and peripartum mental illness.
Next milestone
No next milestone was established from the available source.
Study facts
- Study design
- Observational
- Participants / samples
- 549010 · basis not reported
- Randomised
- Not reported
- Controlled
- Not reported
- Primary endpoint met
- Not reported
- Relevant MS type
- All
- Publication date
- 2026-09-30
- Evidence reviewed
- Abstract only
- Regulatory approval
- Not reported
- Research areas
- Other
Original sources
- Primary evidencePeripartum mental illness in serial pregnancies in mothers with multiple sclerosis and other chronic diseases. ↗DOI: 10.1177/13524585261486779
Supporting passages (9)
research categoriesTitle: Peripartum mental illness in serial pregnancies in mothers with multiple sclerosis and other chronic diseases.
study designMETHODS: Using population-based administrative data from Ontario, Canada, we identified 549,010 mothers with multiple sclerosis (922), epilepsy (3486), inflammatory bowel disease (3008), diabetes (5991), and without these diseases (comparators, 535,603) who had two live births.
subjectsOBJECTIVES: We compared the incidence, lifetime prevalence, and prevalence of peripartum mental illness requiring care ('active') among mothers with multiple sclerosis and other conditions.
sample sizeMETHODS: Using population-based administrative data from Ontario, Canada, we identified 549,010 mothers with multiple sclerosis (922), epilepsy (3486), inflammatory bowel disease (3008), diabetes (5991), and without these diseases (comparators, 535,603) who had two live births.
relevant ms typesOBJECTIVES: We compared the incidence, lifetime prevalence, and prevalence of peripartum mental illness requiring care ('active') among mothers with multiple sclerosis and other conditions.
publication datePublication date: 2026-09-30
primary endpointUsing validated definitions, we estimated incidence and prevalence of mental illness (any, depression, anxiety, bipolar disorder, psychosis, substance use, suicide attempt) during serial peripartum periods.
findingsBACKGROUND: Mothers with multiple sclerosis have an elevated risk of peripartum mental illness, but changes in risk across serial pregnancies are unknown.
limitationsTitle: Peripartum mental illness in serial pregnancies in mothers with multiple sclerosis and other chronic diseases.
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