Predictors of posttraumatic stress and quality of life in family members of chronically critically ill patients after intensive care

Annals of Intensive Care

Table 2 Psychological characteristics of the dyads of patients with CCI and their close family member (n = 83)

Characteristic	Patients	Family members	Z/χ ²	p
Posttraumatic Stress Scale
Median (IQR)^a	20.0 (14.0–29.0)	18.0 (14.0–28.0)	−1.029	.303 (Z)^b
Posttraumatic Stress Scale^a ≥ 35 (%)	12 (14.5)	13 (15.7)	.000	1.000 (χ ²)^c
Quality of life^d
Median (IQR)	70.0 (50.0–80.0)	90.0 (80.0–100.0)	−6.529	<.001*** (Z)^b
History of traumatic life experiences
Yes [n (%)]^e	24 (28.9)^e	46 (55.4)	5.281	.022* (χ ²)^c

*p ≤ .05
***p ≤ .001
^aPTSS-10 [19]; ^b Z value and p value from Wilcoxon’s signed-rank test; ^c χ ² (chi-square) value and p value from McNemar test; ^d EQ-5D-3L formula according to Hinz et al. [23]; ^e n = 14 (16.9 %) missing values