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Nathan Hansen, Ph.D.
blue arrow Assistant Professor, Psychiatry
blue arrow Associate Director, Development Core
blue arrow Investigator, Clinical and Health Services Research (CHSR) Core

Contact:
blue arrow nathan.hansen@yale.edu
blue arrow Ph: (203) 789-7645


Brief Bio:
Dr. Hansen is a clinical psychologist and an Assistant Professor at the Consultation Center in the Department of Psychiatry at Yale University School of Medicine. His research centers on the intersection of trauma, particular interpersonal violence, and negative health consequences, such as psychiatric disorders, substance abuse, and sexual risk behavior. Dr Hansen is working on projects implementing individual and group psychotherapy interventions with adults who experienced sexual abuse as children and/or adolescents, with aims: (1) to reduce traumatic distress, and (2) to increase health-protective behavior, including reducing substance use and sexual risk behavior. He is also currently involved in (1) a project to enhance coping among HIV-infected older adults, and (2) a project with newly HIV diagnosed men aiming to reduce HIV transmission risk behavior and enhance coping and entry into care.

Areas of Expertise:
HIV mental health,HIV prevention,Psychotherapy outcome,Substance abuse treatment and prevention,Trauma, child abuse, and interpersonal violence

CIRA Affiliated Projects:
Intervention for HIV+ Adults with Childhood Sexual Abuse
Funder:
National Institute of Mental Health
Status: Active
Region:
U.S. - Outside of CT.

Selected Publications:
In Press

Johnson, C.J., Heckman, T.J., Hansen, N.B., Sikkema, K.J., & Kochman, A.  (In Press). Adherence to antiretroviral medication in older adults living with HIV/AIDS. AIDS Care, (), .

Hansen, N.B., Vaughan, E.L., Cavanough, C.E., Connell, C.M., Sikkema, K.J.  (In Press). Health-related quality of life in bereaved HIV Positive Adults: Relationships between HIV symptoms, grief, social support, and personality disorder indication. Health Psychology, (), .

Nielsen, S.L., Okiishi, J., Nielsen, D., Hawkins, E., Harmon, C.J., Peserson, T., Worthen, V., Isakson, R., Lambert, M.J., Lawson, J., Whipple, J., Gleave, R., Hansen, N.B., Dougher, K., Smart, D., Rice, M., Chapman, R. & Jackson, A.  (In Press). Termination, appointment use, and outcome patterns associated with intake therapist discontinuity. Professional Psychology: Research and Practice, (), .

2009

Smith, N.G., Tarakeshawar, N., Hansen, N.B., Kochman, A., Sikkema, K.J.  (2009). Coping mediates outcome following a randomized group intervention for HIV-positive bereaved individuals. Journal of Clinical Psychology, 65(3), 319-335.

Meade, C. S., Kershaw, T. S., Hansen, N. B., & Sikkema, K. J.  (2009). Long-Term Correlates of Childhood Abuse among Adults with Severe Mental Illness: Adult Victimization, Substance Abuse, and HIV Sexual Risk Behavior. AIDS and Behavior, 13(2), 207-216.

Sikkema, K.J, Hansen, N.B., Meade, C.S., Fox, A.M., and Kochman, A.  (2009). Psychosocial Predictors of Sexual HIV Transmission Risk Behavior among HIV-Positive Adults with a Sexual Abuse History in Childhood. Archives of Sexual Behavior, 38(1), 121-134.

Hansen, N. B., Cavanaugh, C. E., Vaughan, E. L., Connell, C. M., Tate, D. C., & Sikkema, K. J.  (2009). The influence of personality disorder indication, social support, and grief on alcohol and cocaine use among HIV-positive adults coping with AIDS-related bereavement.. AIDS and Behavior, 13(2), 375-384.

Meade, C.S., Hansen, N.B., Kochman, A., Sikkema, K.J.  (2009). Utilization of medical treatments and adherence to antiretroviral therapy among HIV-Positive adults with histories of childhood sexual abuse. AIDS Patient Care & STDs, 23(4), 259-266.

2008

Sikkema, K.S., Wilson, P.A., Hansen, N.B., Kochman, A., Neufeld, S., Ghebremichael, M.S., and Kershaw, T.S.  (2008). Effects of coping intervention on transmission risk behavior among people living with HIV/AIDS and a history of childhood sex abuse.. Journal of Acquired Immune Deficiency Syndromes, 47(4), 506-513.

Lovejoy, T.I., Heckman, T.G., Sikkema, K.J., Hansen, N.B., Kochman, A., Johnson, C.J., Suhr, J., Garske, J.  (2008). Patterns and correlates of sexual activity and condom use behavior in persons 50-plus years of age living with HIV/AIDS. AIDS and Behavior, 12(6), 943-56.

Wilson, P. A., Hansen, N. B., Tarakeshwar, N., Neufeld, S., Kochman, A., & Sikkema, K. S.  (2008). Scale development of a measure to assess intervention group environments: Refining Moos’ Social Climate Scale. Journal of Community Psychology, 36(3), 271-288.

2007

Hansen, N. B., Kershaw, T., Kochman, A., & Sikkema, K. J.  (2007). A Classification and Regression Tree (CART) Analysis Predicting Treatment Outcome Following a Group Intervention RCT for HIV+ Adult Survivors of Childhood Sexual Abuse. Psychotherapy Research, 17(4), 404-415.

Masten, J., Kochman, A., Hansen, N. B., & Sikkema, K. J.  (2007). A short-term group treatment model for gay male survivors of childhood sexual trauma living with HIV/AIDS. International Journal of Group Psychotherapy, 57(4), 475-496.

Fox, A.M., Jackson, S.S., Hansen, N.B., Gasa, N., Crewe, M., and Sikkema, K.J.  (2007). In Their Own Voices: A Qualitative Study of Women's Risk for Intimate Partner Violence and HIV in South Africa. Violence Against Women, 13(6), 583-602.

Sikkema, K.J., Hansen, N.B., Kochman, A., Tarakeshwar, N., Neufeld, S., Meade, C.S., and Fox, A.M.  (2007). Outcomes from a Group Intervention for Coping with HIV/AIDS and Childhood Sexual Abuse: Reductions in Traumatic Stress. AIDS and Behavior, 11(1), 49-60.

2006

Sikkema, K.J., Hansen, N.B., Ghebremichael, M., Kochman, A., Tarakeshwar, N., Meade, C.S., and Zhang, H.  (2006). A Randomized Controlled Trial of a Coping Group Intervention for AIDS-Bereaved HIV-Positive Adults: Longitudinal Effects on Grief. Health Psychology, 25(5), 563-570.

Hansen, N. B., Ghebremichael, M., Tarakeshwar, N., Kochman, A., Zhang, H., and Sikkema, K.J.  (2006). Longitudinal effects of coping on outcome in a randomized controlled trial of a coping group intervention for HIV positive adults with AIDS-related bereavement. Death Studies, 30(7), 609-636.

Tate, D.C., van den Berg, J.J., Hansen, N.B., Sikkema, K.J. and Kochman, A.A.  (2006). Racial Differences in Coping with Loss Among HIV-Positive African American and White Gay and Bisexual Men. Culture, Health, and Sexuality, 8(3), 235-249.

Tarakeshwar, N., Hansen, N.B., Kochman, A., Fox, A., and Sikkema, K.J.  (2006). Resiliency among Individuals with Childhood Sexual Abuse and HIV: Perspectives on Addressing Sexual Trauma. Journal of Traumatic Stress, 19(4), 449-460.

Ghebremicael, M.S., Hansen, N.B., Zhang, H., and Sikkema, K.M.  (2006). The Dose-effect of a Group Intervention for Bereaved HIV-positive Individuals. Group Dynamics: Theory, Research, and Practice, 10(3), 167-180.

2005

Tarakeshwar, N., Hansen, N., Kochman, A. and Sikkema, K.J.  (2005). Gender, Ethnicity and Spiritual Coping among Bereaved HIV-Positive Individuals. Mental Health, Religion, and Culture, 8(2), 109-125.

Sikkema, K.J., Hansen, N.B., Meade, C.S., Kochman, A. and Lee, R.S.  (2005). Improvements in Health-Related Quality of Life Following a Group Intervention for Coping with AIDS-Bereavement Among HIV-Infected Men and Women. Quality of Life Research, 14(4), 991-1005.

Rogers, M.E., Hansen, N.B., Levy, B.R., Tate, D.C. and Sikkema, K.J.  (2005). Optimism and Coping with Loss in Bereaved HIV-Infected Men and Women. Journal of Social and Clinical Psychology, 24(3), 341-360.

2004

Sikkema, K.J., Hansen, N.B., Kochman, A., Tate, D.C. and Difranceisco, W.  (2004). Outcomes from a Randomized Controlled Trial of a Group Intervention for HIV Positive Men and Women Coping with AIDS-Related Loss and Bereavement. Death Studies, 28(3), 187-209.

Sikkema, K.J., Hansen, N.B., Tarakeshwar, N., Kochman, A., Tate, D.C. and Lee, R.S.  (2004). The Clinical Significance of Change in Trauma-Related Symptoms Following a Pilot Group Intervention for Coping with HIV-AIDS and Childhood Sexual Trauma. AIDS and Behavior, 8(3), 277-291.

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