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Table 3 Patient characteristics at ICU admission, based on the presence of ventilator-associated events

From: Accuracy of ventilator-associated events for the diagnosis of ventilator-associated lower respiratory tract infections

 

VAC, n = 227

No VAC, n = 832

p

IVAC, n = 123

No IVAC, n = 936

p

pVAP, n = 62

No pVAP, n = 997

p

Male gender

164 (72.2)

531 (63.8)

0.020

88 (71.5)

607 (64,9)

0.150

44 (71)

651 (65.3)

0.372

Age, years

59 (47–67)

61 (47–70)

0.227

58 (46–67)

61 (47–69.7)

0.121

55 (45–66)

61 (47–70)

0.006

SAPS II

56 (46–74)

59 (46–70)

0.804

58 (44–72)

58 (46–70)

0.353

60 (47–73)

58 (46–71)

0.192

SOFA

9 (7–12)

9 (6–11)

0.041

9 (6–12)

10 (6.25–11)

0.009

9 (7–13)

9 (7–12)

0.392

Reason for admission

 Medical vs surgical

189 (83.3)

693 (83.3)

0.933

94 (76.4)

788 (84.2)

0.026

46 (74.2)

836 (83,9)

0.043

 Septic shock

65 (28.6)

200 (24)

0.162

32 (26)

233 (24.9)

0.797

14 (22.6)

251 (25.1)

0.641

 Acute respiratory failure

93 (41)

282 (33,9)

0.051

43 (35)

332 (35.5)

0.898

18 (29)

357 (35.8)

0.274

 Neurologic failure

39 (17.2)

171 (20.6)

0.252

21 (17.1)

189 (20.2)

0.409

11 (17.7)

199 (20)

0.665

 Soft tissue infection

23 (10.1)

83 (10)

0.953

16 (13)

90 (9.6)

0.242

8 (12.9)

98 (9.8)

0.437

 Cardiac arrest

21 (9.3)

98 (11.8)

0278

13 (10.1)

106 (11.3)

0.794

9 (14.5)

110 (11.1)

0.405

 Poisoning

7 (3.1)

40 (4.8)

0.261

4 (3.3)

43 (4.6)

0.343

2 (3.2)

45 (4.5)

0.631

 Other

44 (19.4)

118 (14.2)

0.056

28 (22.8)

134 (14.3)

0.015

12 (19.4)

150 (15.1)

0.364

Charlson comorbidity index

3 (2–5)

4 (1–5)

0.440

3 (1–5)

4 (2–5)

0.639

3 (2–5)

4 (1–5)

0.024

Diabetes

58 (25.6)

182 (21.9)

0.248

33 (26.8)

207 (22.2)

0.246

13 (21)

227 (22.8)

0.736

Chronic renal failure

17 (7.5)

88 (10.6)

0.899

9 (7.3)

96 (10.3)

0.302

3 (4.8)

102 (10.3)

0.167

Chronic heart failure

40 (17.6)

150 (18.1)

0.875

22 (17.9)

168 (18)

0.978

10 (16.1)

180 (18.1)

0.696

Chronic respiratory failure

36 (15.9)

120 (14.5)

0.598

19 (15.4)

137 (14.7)

0.819

10 (16.1)

146 (14.7)

0.754

Cirrhosis

23 (10.1)

70 (8.4)

0.436

13 (10.6)

80 (8.6)

0.470

6 (9.7)

87 (8.7)

0.809

Immunosuppression

55 (24.2)

236 (28.4)

0.209

33 (26.8)

258 (27.6)

0.853

17 (27.4)

274 (27.5)

0.984

Obesity

 BMI > 30

64 (28.2)

153 (18.4)

0.001

35 (28.5)

182 (19.5)

0.021

8 (29)

199 (20)

0.088

 BMI > 35

30 (13.2)

86 (10.3)

0.223

18 (14.6)

98 (10.5)

0.167

10 (16.1)

106 (10.6)

0.181

  1. Data are numbers (%), or median (interquartile range)
  2. BMI, body mass index; SAPS: simplified acute physiology score; SOFA, sepsis-related organ failure assessment