Table 4.

Posttraumatic diagnostic scale (PDS) in both care givers of patients with cardiac illness (ischemic cardiac disease complicated with chronic heart failure).

	Care givers of patients with severe mental illness (N = 70)		Care givers of patients with severe cardiac illness (N = 70)		Test of sig.	p
	N.	%	N.	%
PTSD found	11	15.7	0	0.0	χ2 = 11.93*	<0.001*
PTSD not found	59	84.3	70	100
Care givers of patients with severe mental illness who met diagnosis of PTSD (N = 11)
PTSD severity
Mild	0	0.0
Moderate	2	18.2
Severe	0	0.0
Mod - severe	9	81.8
Degree of impairment
Mild	1	9.1
Moderate	8	72.7
Severe	2	18.2

χ² Chi square test;

^*Statistically significant at p ≤ 0.05.