BackgroundPotentially traumatic events happen in people’s lives, leading to the risk of the development of posttraumatic stress disorder, depression and even suicide. Resilience is an individual’s ability to maintain or regain his/her mental health in the face of significant adversity or risk of death. The aim of this study was to conduct a systematic review of studies evaluating the effectiveness of resilience promotion interventions in adults.MethodsElectronic searches were conducted in databases ISI, PsycINFO and PubMed, including every language and every year until January 20, 2013. We selected studies with nonclinical samples of adults that evaluated the effectiveness of the intervention through randomized and non-randomized controlled trials and open-ended studies. We also considered valid constructs directly related to resilience, such as hardiness.ResultsAmong 2.337 studies, 13 were selected for the review, 5 through electronic databases and 8 through search in references or the “times cited list” (list of articles that cited the selected papers). Of these, 7 are randomized controlled trials, 5 non-randomized controlled trials, and one an open-ended trial. Most of the studies included reported some degree of improvement in resilience-like variables among those subjects exposed to resilience-promoting programs. Furthermore, positive findings were more consistent among randomized controlled trials - six out of the seven suggested efficacy.ConclusionThere is evidence pointing towards some degree of effectiveness of resilience promotion programs, despite the poor operationalization of the construct and great heterogeneity in the studies. Indeed, the analysis of the methodological quality of the selected studies was hampered by the poor quality of reporting. There were faults in reporting in most studies on almost all items (random sequence generation, allocation concealment, blinding of outcome assessment, incomplete outcome data, description of concurrent treatment and intent-to-treat analysis), except for the item “selective reporting”. Additional efforts should be made to determine the actual effect size of the interventions, since this is crucial for calculating the cost-effectiveness of resilience promotion strategies.Electronic supplementary materialThe online version of this article (doi:10.1186/s12888-014-0227-6) contains supplementary material, which is available to authorized users.
Natural disasters can have devastating consequences. Each year, about 225 million people are victims of natural disasters worldwide, and up to 13,5 million of these people can develop post-traumatic stress disorder (PTSD) in the first or second year following the disaster. Cognitive-behavior therapy (CBT) is the first-choice treatment for this disorder. In order to evaluate the efficacy of psychotherapeutic treatment based on cognitive-behavior therapy for people who developed post traumatic stress disorder after natural disasters we conducted a systematic search of published studies. We used the terms reported below in the electronic databases ISI Web of Science, PsycINFO, PubMed, PILOTS and Scopus with no restrictions of language or publication date. Articles that described randomized controlled, non-randomized controlled and non controlled studies on the efficacy of cognitive-behavior therapy for individuals diagnosed with post-traumatic stress disorder after exposure to a natural disaster were eligible for inclusion. The studies were required to use a standardized measure of effectiveness before and after the intervention and have a group of patients who had used cognitive-behavior therapy as the only intervention. Our search identified 820 studies, and 11 were selected for this review. These 11 studies involved 742 subjects, 10 related to earthquakes and 1 to a hurricane. The cognitive-behavior therapy techniques used were various: 7 studies used exposure therapy, 2 studies used problem solving, and the only 2 studies with adolescents used techniques including reconstructions and reprocessing of the traumatic experience. As limitations, the search involved only five electronic databases, no experts in the field were consulted, and the heterogeneity of the findings made it impossible to perform a meta-analysis. The results suggest the efficacy of cognitive-behavior therapy, particularly exposure techniques, for the treatment of post-traumatic stress disorder after earthquakes. However, further studies with stronger methodologies, i.e. randomized-control trials and non-randomized controlled trials, are needed.
Introduction: While several previous meta-analyses have documented the short-term efficacy of cognitive-behavioral therapy (CBT), its long-term efficacy remains unknown. Posttraumatic stress disorder (PTSD) is a serious, debilitating, often chronic and disabling disease. Objective: To estimate the long-term efficacy of CBT in the treatment of PTSD by assessing the maintenance of the effect after one year of follow-up. Method: We performed a systematic review through electronic database searches including ISI Web of Science, PubMed, PsycInfo and Pilots. We included randomized studies in which CBT was compared with a control group (waiting list or usual care) in adults with PTSD that reported at least one year of CBT follow-up. Results: Our search identified 2,324 studies and 8 were selected. CBT was shown to be effective in the treatment of PTSD in the post-treatment period. Improvement in PTSD symptoms was statistically significant in relation to the control group. The improvement observed in the treatment group or single group (formed by both treatment group and control group, which was submitted to the intervention after a few weeks on the waiting list) was maintained in the follow-up. Conclusion: Due to the lack of control groups in the follow-up period in six of the eight studies included in this review, there is still no proper methodological basis to assert that CBT has lasting effects in the treatment of PTSD. Our study found serious methodological shortcomings and the need to fill this gap in the literature through the development of studies with robust and sophisticated designs.
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