25-year follow-up of treated and not-treated adolescents after the Spitak earthquake: course and predictors of PTSD and depression.

BACKGROUND: There is a paucity of long-term prospective disaster studies of the psychological sequelae among survivors. METHODS: At 1½ and 25 years after the Spitak earthquake, 142 early adolescents from two cities were assessed: Gumri (moderate-severe exposure) and Spitak (very severe exposure). The Gumri group included treated and not-treated subjects, while the Spitak group included not-treated subjects. Instruments included: DSM-III-R PTSD-Reaction Index (PTSD-RI); DSM-5 PTSD-Checklist (PCL); Depression Self-Rating Scale (DSRS); and Center for Epidemiological Studies-Depression Scale (CES-D). RESULTS: (1) Between 1½ and 25 years, PTSD rates and mean scores decreased significantly in the three groups (over 50%). However, at 25 years 9.1-22.4% met DSM-5 PTSD criteria. (2) At 1½ years, the Spitak group had higher PTSD-RI (p < 0.001) and DSRS scores (p < 0.001) compared to the Gumri-not-treated group. At 25 years, the Spitak group that had experienced fewer post-earthquake adversities (p < 0.03), had a greater decrease in PTSD-RI scores (p < 0.02), and lower CES-D scores (p < 0.01). (3) Before treatment, PTSD-RI and DSRS scores did not differ between the Gumri-treated and not-treated groups. At 25-years, the Gumri-treated group showed a greater decrease in PTSD-RI scores (p < 0.03), and lower mean PTSD-RI (p < 0.02), PCL (p < 0.02), and CES-D (p < 0.01) scores. (4) Predictors of PTSD symptom severity at 25-years included: home destruction, treatment, social support, post-earthquake adversities, and chronic medical illnesses. CONCLUSION: Post-disaster PTSD and depressive symptoms can persist for decades. Trauma-focused treatment, alleviation of post-disaster adversities, improving the social ecology, and monitoring for chronic medical illnesses are essential components of recovery programs.

A prospective study of posttraumatic stress and depressive reactions among treated and untreated adolescents 5 years after a catastrophic disaster.

OBJECTIVE: This study evaluated 1) the natural course of posttraumatic stress and depressive reactions among untreated adolescents from two cities in an earthquake zone (Gumri and Spitak) and one at the periphery (Yerevan) who were differentially exposed to the 1988 Spitak earthquake in Armenia and 2) the effectiveness of brief trauma/grief-focused psychotherapy among adolescents from Gumri. METHOD: One hundred twenty-five adolescents were assessed with the Child Posttraumatic Stress Disorder Reaction Index (CPTSD-RI) and the Depression Self-Rating Scale (DSRS) at 1.5 and 5 years postearthquake. At 1.5 years, trauma/grief-focused group and individual psychotherapy was provided over 6 weeks to a group of students in Gumri. RESULTS: CPTSD-RI scores among untreated adolescents from Gumri and Spitak subsided significantly but mildly at follow-up, with scores from Spitak, the city at the epicenter, remaining above the cutoff for a diagnosis of PTSD. DSRS scores increased mildly in both earthquake cities but only significantly in Gumri. Among treated adolescents in Gumri, improvement in CPTSD-RI scores was three times that of the untreated Gumri comparison group. The treated group also tended to improve on their DSRS scores, whereas these scores worsened significantly among untreated subjects. CONCLUSIONS: Untreated adolescents exposed to severe trauma are at risk for chronic PTSD and depressive symptoms. Brief trauma/grief-focused psychotherapy is effective in reducing PTSD symptoms and halting the progression of depression. This study supports the implementation of mental health intervention programs in schools after disasters to reduce trauma-related psychopathology.

Heritabilities of symptoms of posttraumatic stress disorder, anxiety, and depression in earthquake exposed Armenian families.

OBJECTIVE: To examine the heritabilities of symptoms of posttraumatic stress disorder (PTSD), anxiety, depression, and the shared genetic component of these symptoms among family members exposed to the 1988 Spitak earthquake in Armenia. METHODS: Two hundred members of 12 multigenerational families exposed to the Spitak earthquake were studied using a battery that assessed earthquake exposure and symptoms of PTSD, anxiety, and depression. Heritabilities of these phenotypes were determined using variance component analyses and shared genetic vulnerabilities between these phenotypes were determined using bivariate analyses. RESULTS: Heritabilities were as follows: PTSD symptoms 41% (P<0.001), anxiety symptoms 61% (P<0.001), and depressive symptoms 66% (P<0.001). The genetic correlation (rhog>0) of PTSD symptoms with anxiety symptoms was 0.75 (P<0.001) and with depressive symptoms it was 0.71 (P<0.001). The genetic correlation of anxiety with depressive symptoms was 0.54 (P<0.001). CONCLUSION: The heritabilities found in this multigenerational family study indicate that the genetic make-up of some individuals renders them substantially more vulnerable than others to develop symptoms of PTSD, anxiety, and depression. A large proportion of the genetic liability for PTSD, anxiety, and depression are shared. The findings offer promise for identifying susceptibility genes for these phenotypes.