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Table 1 Characteristics of patients at baseline

From: Patients suffering from psychological impairments following critical illness are in need of information

CharacteristicsTotal
(N = 44)
Patients with psychological PICS
(N = 26)
Patients without psychological PICS
(N = 18)
P value†
Demographics
 Male, n (%)35 (80%)21 (81%)14 (78%)1.00a
 Age, median (IQR)61 (55–69)59 (53–68)64 (57–69)0.20b
Treatment-related characteristics
 Hospital days, median (IQR)15 (10–22)14 (10–22)15 (10–23)0.90b
 ICU days, median (IQR)4 (3–8)4 (3–8)5 (3–8)0.70b
 Documented delirium, n (%)9 (21%)5 (19%)4 (22%)1.00a
 Mechanical ventilation, h, median (IQR)56 (30–132)55 (28–123)56 (33–153)0.70b
 Renal replacement therapy, n (%)3 (7%)1 (4%)2 (11%)0.60a
Scores
 APACHE II, median (IQR)21 (16–27)21 (16–26)21 (16–21)0.50b
 SAPS II, median (IQR)41 (32–55)40 (32–54)41 (32–54)0.90b
 Admission SOFA score, median (IQR)6 (5–9)7 (5–9)6 (5–11)1.00b
PTSD and depression
 IES-R score, median (IQR)34 (24–46)44 (36–56)24 (22–25)< 0.001b
 BDI score, median (IQR)10 (6–18)16 (11–22)3 (2–6)< 0.001b
HRQoL
 SF-12MCS-12, median (IQR)48 (39–55)40 (36–45)56 (54–59)< 0.001b
PCS-12, median (IQR)40 (35–46)38 (34–45)42 (37–47)0.30b
 EQ-5D utility score, median (IQR)0.75 (0.53–0.88)0.68 (0.45–0.82)0.88 (0.76–0.98)< 0.01b
 EQ-VAS, median (IQR)65 (54–80)58 (45–68)70 (66–84)< 0.01b
  1. PICS post-intensive care syndrome, PTSD posttraumatic stress disorder, IES-R Impact of Event Scale Revised, BDI Beck Depression Inventory, HRQoL health-related quality of life, SF-12 Short-Form 12, MCS-12 Mental Component Scale from the SF-12, PCS-12 Physical Component Scale from the SF-12, EQ-5D EuroQol 5 Dimensions, VAS visual analogue scale
  2. P values are for the comparison between patients with and without psychological PICS
  3. aP value from Fisher’s exact test
  4. cP value from Wilcoxon rank-sum test