The impact of complicated grief on mental and physical health at various points in the bereavement process
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Updated: Sep 26, 2026

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1School of Nursing, University of Wisconsin-Milwaukee, Wisconsin, USA. carolott@uwm.edu
Insights
Complicated grief (CG) after spousal bereavement is linked to persistent mental health issues. Early identification of CG is crucial for intervention and improving long-term well-being.
Area of Science:
- Psychology
- Psychiatry
- Public Health
Background:
- Spousal bereavement is a significant life event associated with mental and physical health challenges.
- Complicated grief (CG) is a prolonged and intense form of grief that may impact long-term health outcomes.
- Understanding the trajectory of CG and its health consequences is vital for developing effective interventions.
Purpose of the Study:
- To investigate the association between complicated grief (CG) during spousal bereavement and subsequent mental and physical health problems.
- To determine if CG, identified at different time points, predicts adverse health outcomes 18 months later.
Main Methods:
- A cohort sequential study design was employed with 112 participants.
- Data were collected at four time points.
- Complicated grief was assessed using the Inventory of Complicated Grief (ICG).
- Mental health was measured using the Mental Health Index (MHI), and physical health was self-reported.
Main Results:
- Twenty-nine participants met criteria for complicated grief (CG).
- The CG group exhibited significantly lower Mental Health Index (MHI) scores starting at 6 months post-bereavement, with persistent effects.
- Individuals with CG reported more life stressors, less social support, and less improvement in MHI scores compared to the non-CG group.
Conclusions:
- The presence of complicated grief (CG) at 6 months or later post-spousal bereavement is a significant indicator for mental health decline.
- Early identification and professional intervention for CG are recommended to mitigate long-term mental and physical health problems.
- Findings support the consideration of complicated grief (CG) as a distinct diagnosis in the DSM.
Abstract:
The purpose of this cohort sequential study was to determine whether the presence of complicated grief (CG) measured at various points in the spousal bereavement process is associated with an increase in mental and physical health problems 18 months later. One hundred twelve participants provided data at four points in time. CG was measured with the Inventory of Complicated Grief (ICG), and mental health was measured with the Integra Outpatient Tracking Assessment, Mental Health Index (MHI), and illnesses by self-report. Twenty-nine participants were identified as experiencing CG. Beginning at 6 months after the death, MHI scores were significantly lower for the CG group and those results were persistent. The CG group experienced more additional life stressors, perceived less social support, and achieved less clinically significant change in MHI than the NCG group. Identification of CG at any point at 6 months or later in bereavement indicates a need for professional intervention. Implications for establishing CG as a DSM diagnosis are discussed.
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