Group Grief-Focused CBT Matches Individual Format in Older Adults

A simple, expensive question now has a clean answer. When older adults present with prolonged grief — often layered with PTSD, depression, anxiety — does putting them in a 12-week therapy group produce the same outcomes as one-on-one work? In this Aarhus-based trial led by Komischke and O'Connor, with Boelen (Utrecht) and Maccallum (Queensland) as co-investigators, the answer is yes. The group format is statistically noninferior across the entire symptom map at six months. For a clinical population that is growing, undertreated, and frequently caught between waiting lists, this is operationally significant.

What the data shows

The trial enrolled 113 bereaved adults aged 65 or older meeting cutoffs for PGD, PTSD, depression, or anxiety. Randomization was 1:1, recruitment ran April 2021 through May 2025, primary endpoint was the 6-month follow-up after a 12-week treatment. Both arms received exposure to grief cues, cognitive restructuring of loss-related cognitions, and behavioural activation — the same techniques in the same sequence. The group format ran 2-hour sessions; individual format ran 1-hour sessions.

Mixed linear models on intention-to-treat showed within-group effect sizes that are unusually large for an older bereaved sample: d=1.74 for the group condition, d=1.46 for individual. The between-group difference at 6 months was d=0.09 with a 95% CI well inside the noninferiority margin (-0.06 to 0.25). Crucially, this pattern repeated for every secondary outcome the team measured — PTSD, depression, anxiety, loneliness, perceived social support, functional impairment, quality of life, well-being. Dropouts (23% vs 19%) were not concentrated in either arm.

What's interesting is the direction of the effect-size point estimate: the group condition was numerically slightly better. The authors are properly cautious about this — noninferiority is the only claim the design supports. But the loneliness and social-support secondary outcomes hint at a mechanism worth attention: bereaved older adults may benefit from the in vivo social re-engagement that a group affords, beyond the technique content of the protocol itself.

For your practice

If you run a bereavement service, this trial is permission to scale. The clinical equivalence at 6 months means you can move appropriate patients into 12-week structured groups without expecting outcome dilution — which materially changes throughput and waitlist economics. Three operational notes:

First, the protocol is technique-driven, not process-driven group therapy. Twelve sessions, fixed sequence: imaginal exposure to the loss, cognitive restructuring around restraining beliefs about the deceased and the future, behavioural activation. If your current bereavement groups are unstructured support groups, this is a different intervention; do not assume your existing format inherits the result.

Second, the population matters. The sample was 65+, predominantly female, with cutoffs across PGD, PTSD, depression, and anxiety — i.e. clinically symptomatic, not just bereaved. This trial does not speak to acute uncomplicated grief in younger adults, and it does not address pre-loss anticipatory grief.

Third, the dropout signal (23% group, 19% individual) is not catastrophic but it is real. Bereaved older adults find sustained 2-hour group attendance harder than 1-hour individual sessions. Consider front-loading engagement work in early sessions and giving explicit permission for variable in-session participation during exposure work.

For the practitioner deciding triage: an older adult with PGD plus depressive or PTSD comorbidity can be offered group GF-CBT as a first-line option, with individual format reserved for those who decline groups, have severe social anxiety, or present with complications (active suicidality, recent traumatic loss with intrusion symptoms making group exposure unsafe).