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Table 1 Baseline characteristics

From: Statins do not prevent acute organ failure in ventilated ICU patients: single-centre retrospective cohort study

Variable

Overall (n= 1,397)

No statin exposure (n= 1,178)

Statin exposed (n= 219)

P value

Age (years)

57.4 (18.4)

55.5 (18.9)

67.4 (10.3)

< 0.0001

APACHE II score

18.2 (6.8)

17.8 (6.9)a

20.3 (6.0)

< 0.0001

Female

501 (35.9%)

446 (37.9%)

55 (25.11%)

0.0003

Reason for admissionb

   

< 0.0001

   Infection

320 (22.9%)

269 (22.9%)

51 (23.3%)

 

   Sepsis/septic shock

44 (3.2%)

39 (3.3%)

5 (2.3%)

 

   Cardiac failure

31 (2.2%)

16 (1.4%)

15 (6.9%)

 

   Haemorrhage

48 (3.4%)

46 (3.9%)

2 (0.9%)

 

   Postoperative ventilation (planned)

176 (12.6%)

147 (12.5%)

29 (13.2%)

 

   Postoperative ventilation (unplanned)

149 (10.7%)

112 (9.5%)

37 (16.9%)

 

   Otherc

628 (45.0%)

548 (46.6%)

80 (36.5%)

 

Number of statin doses received

  

3 (2, 8)

 

Main admission categoryd

   

< 0.0001

   Cardiovascular

464 (34.3%)

347 (30.5%)

117 (54.4%)

 

   Gastrointestinal

118 (8.7%)

110 (9.7%)

8 (3.7%)

 

   Metabolic

17 (1.3%)

16 (1.4%)

1 (0.5%)

 

   Neurological

302 (22.3%)

286 (25.2%)

16 (7.4%)

 

   Respiratory

451 (33.4%)

378 (33.2%)

73 (33.95%)

 

Admission source

   

< 0.0001

   Emergency room

369 (26.4%)

326 (27.7%)

43 (19.6%)

 

   Hospital ward

221 (15.8%)

175 (14.9%)

46 (21%)

 

   Another hospital

294(21.05%)

263 (22.3%)

31 (14.2%)

 

   Operating room

377(26.99%)

310 (26.3%)

67 (30.6%)

 

   High dependency ward

125 (8.95%)

98 (8.3%)

27 (12.3%)

 

Other

11 (0.79%)

6 (0.51%)

5 (2.3%)

 

Baseline biochemistry

    

   Bilirubin (mmol/l)

17 (12, 25)

17 (12, 26)e

17 (12, 23)

0.31

   ALT (IU/l)

25 (15, 48.5)

24 (15, 46)f

34 (18, 64)

< 0.0001

Baseline SOFA

    

   Total

3 (2, 4)

3 (2, 4)

4 (3, 5)

< 0.0001

   Median total nonrespiratory

1 (0, 2)

1 (0, 2)

1 (0, 2)

0.0005

   Mean total nonrespiratory

1.23 ± 1.29

1.18 ± 1.28

1.49 ± 1.31

0.001

   Respiratory:

   

< 0.0001

0

70 (5.01%)

62 (5.3%)

8 (3.6%)

 

1 or 2

973 (69.7%)

843 (71.6%)

130 (59.4%)

 

3 or 4

354 (25.3%)

273 (23.2%)

81 (37.0%)

 

   Hepatic 1 or 2

591 (42.3%)

503 (42.7%)

88 (40.2%)

0.49

   Renal 1 or 2

328 (23.5%)

243 (20.6%)

85 (38.8%)

< 0.0001

   Haematological 1 or 2

341 (24.4%)

284 (24.1%)

57 (26.0%)

0.54

   Cardiovascular 1 or 2

28 (2%)

14 (1.2%)

14 (6.4%)

< 0.0001

  1. Data expressed as mean ± standard deviation, median (interquartile range), or number (percentage). ALT, alanine transferase; APACHE, Acute Physiology and Chronic Health Evaluation; SOFA, Sequential Organ Failure Assessment. aData missing for 16 patients. bData missing for one patient. cInclude trauma (n = 44, 3.2%), overdose (n = 96, 6.9%), seizures (n = 84, 6.0%), post-arrest (n = 117, 8.4%) and abdominal obstruction or perforation (n = 54, 3.9%). dData missing for 41 patients in the nonstatin group and four patients in the statin group. eData missing for 20 patients. fData missing for 21 patients.