Table 1.

Adjusted regression models predicting caregiver peritraumatic distress (Peritraumatic Distress Inventory scores) and dissociation (Peritraumatic Dissociative Experiences Questionnaire scores)

Predictor	Linear Regression Outcome: PDI Scores			Logistic Regression Outcome: Higher PDEQ Scores (above Median)
	b-Value	SE	P Value	aOR	95% CI	P Value
Patient age (in yr)	−0.08	0.04	0.03	0.98	0.95 to 0.99	0.02
Patient female (vs. male)	−2.48	1.45	0.09	0.57	0.24 to 1.35	0.20
Patient of white race (vs. other)	−2.48	1.65	0.14	0.47	0.18 to 1.23	0.12
Patient of Hispanic/Latino ethnicity (vs. other)	2.02	2.01	0.32	1.65	0.50 to 5.47	0.41
Patient symptom burden (caregiver rated)	1.72	0.39	<0.001	1.17	0.93 to 1.48	0.18
Patient able to communicate (vs. unable)	−0.57	1.79	0.75	0.60	0.21 to 1.74	0.35
Patient using mechanical ventilation (vs. not using)	1.38	1.90	0.47	0.73	0.24 to 2.26	0.58
Patient died in ICU within 1 mo (vs. did not)	−0.67	1.65	0.68	0.90	0.34 to 2.37	0.83
ICU length of stay (in d)	0.18	0.12	0.12	1.04	0.97 to 1.11	0.31

Definition of abbreviations: aOR = adjusted odds ratio; CI = confidence interval; ICU = intensive care unit; PDEQ = Peritraumatic Dissociative Experiences Questionnaire; PDI = Peritraumatic Distress Inventory; SE = standard error.

Models included patient age, symptom burden, and ICU length of stay as continuous variables and other factors as binary variables. b-value is the unstandardized regression coefficient. Bold values indicate statistically significant, P < 0.05.