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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 BMC+Psychiatry
2016 ; 16
(ä): 188
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The incidence of post-traumatic stress disorder among survivors after
earthquakes:a systematic review and meta-analysis
#MMPMID27267874
Dai W
; Chen L
; Lai Z
; Li Y
; Wang J
; Liu A
BMC Psychiatry
2016[Jun]; 16
(ä): 188
PMID27267874
show ga
BACKGROUND: Post-traumatic stress disorder (PTSD) is a common psychological
disorder caused by unusual threats or catastrophic events. Little is known about
the combined incidence of PTSD after earthquakes. This study aimed at evaluating
the combined incidence of PTSD among survivors after earthquakes using systematic
review and meta-analysis. METHODS: The electronic databases of PubMed, Embase,
Web of Science and PsycARTICLES were searched for relevant articles in this
study. Loney criteria were used to assess the quality of eligible articles. The
combined incidence of PTSD was estimated by using the Freeman-Tukey double
arcsine transformation method. Subgroup analyses were conducted using the
following variables: the time of PTSD assessment, gender, educational level,
marital status, damage to one's house, bereavement, injury of body and witnessing
death. RESULTS: Forty-six eligible articles containing 76,101 earthquake
survivors met the inclusion criteria, of which 17,706 were diagnosed as having
PTSD. Using a random effects model, the combined incidence of PTSD after
earthquakes was 23.66 %. Moreover, the combined incidence of PTSD among survivors
who were diagnosed at not more than 9 months after earthquake was 28.76 %, while
for survivors who were diagnosed at over nine months after earthquake the
combined incidence was 19.48 %. A high degree of heterogeneity (I(2)?=?99.5 %,
p<0.001) was observed in the results, with incidence ranging from 1.20 to
82.64 %. The subgroup analyses showed that the incidence of PTSD after earthquake
varied significantly across studies in relation to the time of PTSD assessment,
gender, educational level, damage to one's house, bereavement, injury of body and
witnessing death. However, stratified analyses could not entirely explain the
heterogeneity in the results. CONCLUSIONS: Given the high heterogeneity observed
in this study, future studies should aim at exploring more possible risk factors
for PTSD after earthquakes, especially genetic factors. In spite of that, the
results of this study suggest that nearly 1 in 4 earthquake survivors are
diagnosed as having PTSD. Therefore, the local government should plan effective
psychological interventions for earthquake survivors.