. Author manuscript; available in PMC: 2014 May 15.

Published in final edited form as: J Affect Disord. 2012 Nov 24;148(1):123–128. doi: 10.1016/j.jad.2012.11.003

Table 2.

Results of regression analyses examining association between 5-HTTLPR genotype, and severity and probable diagnosis of disaster-related posttraumatic stress disorder.

Severity of PTSD symptoms
R²=.19	β	t	p
Age	.02	.23	.82
Female sex	.20^*	2.61	.010
Ancestral proportion score	.08	1.05	.29
5-HTTLPR S’ allele	.15	1.78	.08
High Exposure	.19	1.39	.17
5-HTTLPR S’ allele x High exposure 0.5	.40^***	5.37	<.001
Probable diagnosis of PTSD
Nagelkerke R²=.16
	Wald	OR	95%CI
Age	.47	1.01	.98–1.05
Female sex	1.91	2.63	.67–10.38
Ancestral proportion score	.50	1.65	.41–6.68
5-HTTLPR S’ allele	2.47	7.46	.61–91.46
High Exposure	.15	1.67	.13–22.05
5-HTTLPR S’ allele x High exposure	4.55^*	3.81	1.11–13.03

Note. OR=odds ratio; 95%CI=95% confidence interval.

p<.05.

^***

p<.001.