Table 1 Different cut off scores of IES-R used for estimation of prevalence of PTSD in Wenchuan and Lushan earthquake survivors

Qu et al. [17] (2012)

New mothers

8 months after 2008 Wenchuan earthquake

19.9%

Guo et al. [18] (2018)

Wenchuan Earthquake Survivors

8 years after 2008 Wenchuan earthquake

11.8%

Guo et al. [19] (2017)

Wenchuan earthquake victims

8 years after 2008 Wenchuan earthquake

11.8%

Guo et al. [20] (2015)

Wenchuan earthquake victims

6 months after event

22.1%

Liu et al. [21] (2012)

Qiang Women

1 year after Wenchuan earthquake

37.0%(intrusion subscale), 26.3%(avoidance subscale), 32.6%(hyperarousal subscale) and 8.5%(all 3 subscales)

Qu et al. [22] (2012)

Pregnant women

1.5 years after Wenchuan earthquake

12.2%

Chan et al. [23] (2011)

Adult survivors

7 and 8 months after Wenchuan earthquake

55.6 and 26.4%

Zhang et al. [24] (2011)

Adult survivors

2 months after Wenchuan earthquake

82.6%

Wang et al. [25] (2011)

Adult survivors

3 months after the 2008 Wenchuan earthquake

31.4%

Wang et al. [26] (2010)

Health care workers

3 months after Wenchuan earthquake

19.0%

Xiuying Hu et al. [27] (2016)

Disaster-bereaved survivors

6 months after Wenchuan earthquake

38.9% at 6 months and 16.8% at 18 months

Ellen J. Schenk et al. [28] (2017)

Medical rescue workers

14 months after Wenchuan earthquake

17.0%

Chen et al. [29] (2015)

Elderly survivors

6 months after Lushan earthquake

5.2%

Huang et al. [8] (2009)

Elderly survivors

6 months after Wenchuan earthquake

32.9%

Pan et al. [30] (2015)

Junior high school students

3 years after Wenchuan earthquake

29.6%