Here are some older articles that may also touch on gender differences in suicide loss support groups:
Cerel, J. et al. (2009) "A Call for Research: The Need to Better Understand the Impact of Support Groups for Suicide Survivors" Suicide and Life-Threatening Behavior 39(3) 269-281.
Clark, S. et al. (1993) "A Support Group for People Bereaved Through Suicide" Crisis 14(4)
Jordan, J.R. and McMenamy, J. (2004)"Interventions for Suicide Survivors: A Review of the Literature" Suicide and Life-Threatening Behavior 34(4) 337-349
McIntosh, J.L. (1996) "Survivors of Suicide: A Comprehensive Bibliography Update, 1986-1995" Omega 33(2) 147-175.
Rubey, C. and McIntosh, J. (1996) "Suicide Survivor Groups: Results of a Survey" Suicide and Life-Threatening Behavior 26(4) 351-358
Callahan, j. (2000) Predictors and Correlates of Bereavement in Suicide Support Group Participants. Suicide and Life-Threatening Behavior 30, 104-124.
Clark, S. & Goldney, R. (1995) Grief Reactions and Recovery in a Support Group for People Bereaved by Suicide. Crisis. 16, 27-33.
Feigelman, B. & Feigelman, W. (2008) Surviving After Suicide Loss: The Healing Potential of Suicde Survivor Support Groups. Illness, Crisis, & Loss, 16, 285-305.