Table 3.

Odds ratios and confidence intervals for risk factors included in the multivariable model

Risk factor	Odds ratio	95% Cl	p value	Regression coefficient
Lack of social support	3.28	1.47–7.32	< 0.01	15.71
Psychological problems pre-ICU	2.17	1.22–3.85	> 0.05
Depressive symptoms (PHQ-2)	1.29	1.10–1.50	< 0.01	3.39 per point
Traumatic memories (PTSS-14A)	1.44	1.13–1.82	< 0.01	4.84 per point
Age	Separate table			0–58

Regression coefficients for risk factors in the final predictive model

CI confidence interval, CPAx Chelsea Critical Care Physical Assessment tool, ICU intensive care unit, PHQ-2 patient health questionnaire, PTSS-14A post-traumatic symptoms checklist 14 part A