Table 2.

Management in the intensive care unit and characteristics on discharge

	No or mild symptoms at 3 months N = 426	Significant symptoms at 3 months N = 388	P value
SAPS 2	33 (± 16)	32 (± 16)	0.8
Surgery during ICU stay
Intra-cranial	19 (4.5%)	17 (4.4%)	> 0.9
Spinal	4 (0.9%)	19 (4.9%)	0.001
Orthopaedics	23 (5.4%)	55 (14.2%)	< 0.001
Intra-abdominal	132 (31%)	107 (27.6%)	0.3
Thoracic	64 (15%)	50 (12.3%)	0.4
Pleural drainage	32 (7.5%)	34 (8.7%)	0.6
Number of interventions during ICU	1 [0–1]	1 [0–1]	0.6
Pain management
Continuous Morphine	196 (46%)	170 (43.8%)	0.6
Remifentanil	41 (9.6%)	51 (13.1%)	0.1
Continuous Ketamine	49 (11.5%)	61 (15.8%)	0.1
Gabapentin, Pregabalin	42 (9.9%)	50 (12.9%)	0.2
Loco-regional anesthesia	84 (19.7%)	98 (25.3%)	0.1
Pain symptoms on discharge
Numeric Rating Scale	2 [1–4]	4 [2 –6]	< 0.001
ID pain score	0 [0–1]	1 [0–2]	< 0.001
ID pain score > 3	10 (2.3%)	22 (5.6%)	0.02
Pain location
Head	26 (6.1%)	33 (8.5%)	0.2
Abdominal	105 (24.7%)	101 (26%)	0.8
Limb	61 (14.3%)	86 (22.1%)	0.005
Joint	27 (6.3%)	29 (7.5%)	0.6
Thorax	59 (13.9%)	75 (19.3%)	0.04
Back	23 (5.4%)	60 (15.5%)	< 0.001
ICU complications
Acute respiratory distress syndrome	45 (10.6%)	39 (10.1%)	0.9
Prone positioning	19 (4.5%)	29 (7.5%)	0.1
Neuro-muscular blocking agents	54 (12.7%)	48 (12.5%)	0.9
Invasive mechanical ventilation duration (days)	0 [0–2]	0 [0–2]	0.5
ICU length of stay (days)	6 [4–12]	6 [4–11]	0.9

Numeric variables are expressed as mean (± SD) or median [1^st–3^rd quartile]. Numeric variables were expressed as mean (± SD). Continuous outcomes were compared with Student's t-test. Discrete outcomes were compared with chi-squared or Fisher’s (£) exact test

SAPS Simplified Acute Physiological Score, ICU Intensive Care Unit