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Table 1 Patients’ general characteristics at inclusion

From: Efficacy of using tidal volume challenge to improve the reliability of pulse pressure variation reduced in low tidal volume ventilated critically ill patients with decreased respiratory system compliance

Characteristics

Overall population (n = 76)

Fluid non-responders (n = 45)

Fluid Responders (n = 31)

p

Age (years)

55 ± 16

56 ± 16

53 ± 16

0.30

Male (%)

38(50%)

23 (51%)

15 (48%)

0.81

APACHE II score

26 ± 9

27 ± 10

24 ± 8

0.06

Onset time of sepsis (days)

5.7 ± 2.6

6.1 ± 2.4

5.1 ± 2.7

0.76

BMI

25 ± 4.4

25 ± 4.7

25 ± 3.9

0.60

Hypertension

18(23%)

11 (24%)

7 (23%)

0.85

Diabetes mellitus

7(9.2%)

4 (8.9%)

3 (9.6%)

0.91

Dyslipidaemia

12(15.8%)

7 (15.6%)

5 (16.1%)

0.94

Cause of infection

Pulmonary

50(66%)

29 (64%)

21 (68%)

0.77

Abdominal

13(17%)

8 (18%)

5 (16%)

0.85

Blood stream

8(10.5%)

5 (11.1%)

3 (9.7%)

0.84

Others

5(6.6%)

3 (6.7%)

2 (6.4%)

0.97

  1. Continuous data are presented as mean ± SD or median (range), as appropriate. Categorical data are presented as frequencies (percentage)
  2. APACHE II score Acute Physiology and Chronic Health Evaluation II score, BMI Body mass index