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Table 1 Baseline patient characteristics

From: Outcome impact of individualized fluid management during spine surgery: a before-after prospective comparison study

Variables

Control

(n = 150)

IFM

(n = 150)

p value

Age (yr)

59.2 (45.4–73.0)

57.9 (40.7–75.1)

0.448

Gender(M/F)

63 (43)

61 (41)

0.725

BMI (kg/m2)

25.4 (22.1–28.7)

25.4 (21.5–29.3)

0.971

ASA score(n)

  < =II

144 (91)

141 (94)

 

  > II

6 (9%)

9 (6%)

1

Comorbidity

 Hypertension

61 (40.7)

66 (44)

0.514

 Coronary artery disease

10 (6.7)

10 (6.7)

0.987

 Diabetes Mellitus type II

25 (16.8)

21 (14)

0.521

Baseline Hb (g/L)

135 (115–155)

136 (122–150)

0.486

Baseline HR (bpm)

79 (70–88)

77 (68–86)

0.162

Baseline SBP (mmHg)

132 (117–147)

130 (114–146)

0.121

Baseline Creatinine (ug/ml)

67 (54–80)

68 (49–87)

0.657

  1. Data are presented as mean ± SD, or absolute numbers (percentage). IFM: Individualized fluid management; BMI: Body mass index; ASA: American Society of Anesthesiologists; Hb: Haemoglobin; HR: Heart rate; SBP: Systolic blood pressure