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Table 1 Baseline characteristics of patients in the cohort

From: Uncontrolled pain in critically ill patients and acute kidney injury: a hypothesis-generating cohort study

Demographic data

All patients (n = 3125)

Age (years), median (IQR)

69 (55–81)

Male, n (%)

1595 (51.0)

Admission type, n (%)

Emergency surgery

246 (7.9)

Elective surgery

1104 (35.3)

Clinical

1585 (50.7)

Admission diagnostic, n (%)

Cardiovascular

178 (5.7)

Respiratory

215 (6.9)

Liver

261 (8.4)

Gastrointestinal

147 (4.7)

Neurologic

216 (6.9)

Sepsis

658 (21.1)

Gastrointestinal surgery

315 (10.1)

Neurosurgery

170 (5.4)

Comorbidities, n (%)

NYHA

151 (4.8)

Cirrhosis

53 (1.7)

Solid tumors

1216 (38.9)

Hematologic tumors

153 (5.2)

Arterial Hypertension

1172 (53.7)

Diabetes mellitus

623 (19.9)

Dementia

219 (10)

Disease severity score (points), median

SOFA score on ICU admission (24 h)

2 (1–4)

SAPS3 score on ICU admission (1 h)

40 (32–50)

Mechanical Ventilation, n (%)

509 (16.2)

Vasopressors, n (%)

906 (28.9)

Pain, n (%)

NVS ≥ 3 or BPS positive

739 (23.6)

Pain duration > 5 days

333 (10.6)

Non opioid use

874 (27.9)

Strong opioids use

509 (16.2)

Acute Kidney Injury – Outcome, n (%)

977 (31.7)

Hospital mortality, n (%)

332 (10.6)

  1. NYHA – New York Heart Association; SOFA – Sequencial Organ Failure Assessement; SAPS—Simplified Acute Physiology Score; NVS – Numerical Verbal Scale; BPS—Pain Behavioural Scale