Table 2.

Results of PTSD prevalence rates in individual studies (total n = 30,458)

Study (author/year)	Country (HDIa)	Event/year	N	Assessment tool	Time point measured	PTSD prevalence
Cross sectional studies
Caldera et al. 2001 [26]	Nicaragua (medium)	Storm, Hurricane Mitch, 1998	496	Harvard Trauma Questionnaire (HTQ)	6 months post	5.8 %
Goenjian et al. 2001 [25]	Nicaragua (medium)	Storm, Hurricane Mitch, 1998	158 students	Child Posttraumatic Stress Reaction Index (CPTS-RI)	6 months post	90 %, 55 %, 14 %b
Huang et al. 2010 [27]	China (medium)	Flood, 1998	25,478	Questionnaire	24 months post	9.2 %
Kar et al. 2004 [33]	India (medium)	Storm, super-cyclone, 1999	540	Post traumatic symptom scale (PSS) & Self-Reporting Questionnaire (SRQ)	5 months post	44.3 %
Kar & Bastia 2006 [34]	India (medium)	Storm, super-cyclone, 1999	108 students	Clinical examination & Mini international Neuropsychiatric Interview for children/adolescents (MINI-KID)	14 months post	26.9 %
Kar et al. 2007 [30]	India (medium)	Storm, super-cyclone, 1999	447 students	Clinical examination & ICD-10-symptom check-list & semi-structured questionnaire	12 months post	30.6 %
Kohn et al. 2005 [44]	Honduras (medium)	Storm, Hurricane Mitch, 1998	800	Composite International Diagnostic Interview Schedule (CIDI); Impact of Event Scale (IES)	2 months post	8.9 %, 11.6 %, 13.6 %c
Norris et al. 2006 [28]	Mexico (high)	Flood due to storm, 1999	666	Modified version of CIDI	6 months post	24 %
Wu et al. 2011 [29]	China (medium)	Storm, snowstorm, 2008	968 students	IES (revised version)	3 months post	14.5 %
Cohort study
Amstadter et al. 2009 [24]	Vietnam (medium)	Storm, Typhoon Xangsan, 2006	797	Pre: SRQ; Post: National Women’s Study PTSD Module	3 months post	2.6 %

Explanation: ^aHuman Development Index category; ^b3 differently affected cities; ^c3 age groups