Prevalence of post-traumatic stress disorder after earthquakes among the elderly in China: A meta-analysis

Yong Liang, Hong Zeng, Yu-geng Liu, Ai-min Xu, Wen-hong Liu

Table 1 Characteristics of studies included in the meta-analysis

Study Year Language Country Age range, years Groups n Year of onset Chen et al[17] 2012 English China 71.3±11.7 PTSD 65 July 2011 to August 2011 Non-PTSD 222 Chen et al[18] 2014 English China 75.0±13.4 PTSD 194 October 2010 to November 2010 Non-PTSD 845 Xiao et al[19] 2015 Chinese China 78.0±11.2 PTSD 491 October 2010 to November 2010 Non-PTSD 1,018 Fan et al[20] 2009 Chinese China 82.5±7.7 PTSD 35 May 2008 to June 2008 Non-PTSD 135 Fan et al[21] 2010 Chinese China 80.2±7.2 PTSD 35 May 2008 to June 2008 Non-PTSD 135 He et al[22] 2009 Chinese China 72.3±8.2 PTSD 154 June 2008 to July 2008 Non-PTSD 316 Jia et al[23] 2010 English China 58.5±11.9 PTSD 31 August 2009 and September 2009 Non-PTSD 107 Kang et al[24] 2015 English China 62.3±12.5 PTSD 66 December 2010 to January 2011 Non-PTSD 303 Kun et al[25] 2013 English China 59.5±13.5 PTSD 134 August 2008 to September 2008 Non-PTSD 264 Zhang et al[26] 2011 English China 69.0±7.1 PTSD 72 June 2009 to July 2009 Non-PTSD 212