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Table 4 Determinants of pain-related discomfort scores: univariate analysis (n = 2130 patients)

From: Risk factors and events in the adult intensive care unit associated with pain as self-reported at the end of the intensive care unit stay

   

P value

Sex

Men

3 (0–5)

0.556

 

Women

3 (0–5)

 

Age

R

− 0.051

0.019

Patient type

   

Medical vs. surgical

Medical

2 (0–5)

0.007

 

Surgical

3 (0–5)

 

Cardiovascular and thoracic surgical patients

No

2 (0–5)

0.904

 

Yes

3 (0–5)

 

Cardiovascular surgical patients

No

2 (0–5)

0.477

 

Yes

3 (0–5)

 

Thoracic surgical patients

No

3 (0–5)

0.269

 

Yes

2 (0–4)

 

Knaus score

Normal

3 (0–5)

0.127

 

Moderate

3 (0–5)

 
 

Severe

2 (0–5)

 

SAPS II

R

0.006

0.770

ICU stay duration

R

0.046

0.034

Life support therapies during ICU stay

   

Mechanical ventilation

No

2 (0–5)

0.051

 

Yes

3 (0–5)

 

Noninvasive ventilation

No

3 (0–5)

0.404

 

Yes

2.5 (0–5)

 

Vasopressor administration

No

3 (0–5)

0.425

 

Yes

2 (0–5)

 

Renal replacement therapy

No

3 (0–5)

0.157

 

Yes

3 (0–5)

 

Painful or discomfort-inducing invasive procedures during ICU stay

   

Chest drain insertion

No

2 (0–5)

0.037

 

Yes

3 (1–5)

 

Chest drain removal

No

2 (0–5)

< 0.001

 

Yes

3 (1–5)

 

Use of bladder catheter

No

2 (0–5)

0.001

 

Yes

3 (0–5)

 

Arterial catheter insertion

No

3 (0–5)

0.555

 

Yes

2.5 (0–5)

 

Central venous catheter insertion

No

2 (0–5)

0.014

 

Yes

3 (0–5)

 

Bronchoscopy

No

3 (0–5)

0.351

 

Yes

3 (0–5)

 

Complex dressing change

No

2 (0–5)

0.032

 

Yes

3 (0–6)

 

Intra-hospital transport

No

2 (0–5)

< 0.001

 

Yes

3 (0–5)

 

Program

Never applied

2 (0–5)

0.754

 

Applied for 5 months or more

3 (0–5)

 

Inclusion month

April

3 (0–5)

0.314

 

October

3 (0–5)

 
  1. ICU intensive care unit, SAPS Simplified Acute Physiology Score, R Spearman’s correlation coefficient
  2. Data are presented as the median with interquartile range (IQR) in parentheses
  3. Bold font highlights statistically potential determinants of pain-related discomfort scores as self-reported at the end of patients’ ICU stay (P value ≤ 0.10)