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Table 1 Demographics and baseline characteristics

From: The effect of adding goal-directed hemodynamic management for elective patients in an established enhanced recovery program for colorectal surgery: results of quasi-experimental pragmatic trial

Characteristic Pre-ERP
(n = 246)
ERP
(n = 140)
ERP + GDHT
(n = 237)
P value
Age 58 (42, 67) 53 (39, 66) 56 (38, 66) 0.50
Female [N (%)] 132 (53.7%) 72 (51.4%) 105 (44.5%) 0.072
BMI 26 (23, 30) 27 (24, 31) 27 (23, 32) 0.43
ASA physical status class [N, (%)] 0.64
 I/II 110 (44.7%) 67 (47.9%) 101 (42.8%)  
 III/IV 136 (55.3%) 73 (52.1%) 136 (57.2%)  
Case mix index 1.75 (1.64, 2.57) 2.55 (1.66, 2.56) 2.55 (1.56, 2.55) 0.17
Functional health statusa [N, (%)] 0.22
 Independent 243 (98.8%) 139 (99.3%) 234 (98.6%)  
 Partially dependent 3 (1.2%) 0 (0%) 3 (1.4%)  
 Totally dependent 0 (0%) 1 (0.7%) 0 (0%)  
Pre-existing conditions [N, (%)]  
 Diabetes 21 (8.5%) 12 (8.6%) 21 (8.9%) 0.98
 Current smoker within 1 year 46 (18.7%) 27 (19.3%) 33 (14.0%) 0.27
 Severe COPD 11 (4.5%) 2 (1.4%) 6 (2.5%) 0.23
 Dialysis 0 (0%) 2 (1.4%) 2 (0.8%) 0.12
 Disseminated cancer 7 (2.8%) 5 (3.6%) 3 (1.3%) 0.35
 Open wounds 4 (1.6%) 3 (2.1%) 1 (0.4%) 0.35
 On steroid/immunosuppressant 76 (30.9%) 51 (36.4%) 83 (35.2%) 0.48
 > 10% weight loss in 6 months 14 (5.7%) 10 (7.1%) 15 (6.4%) 0.86
 Transfusion 72 h prior to surgery 0 (0%) 0 (0%) 2 (0.8%) 0.19
  1. aFunctional health status is only available for 211 patients in the ERP+GDHT cohort. Continuous variables are shown in median (25th, 75th percentile); categorical data are shown in number and (percentage (%)).
  2. ERP enhanced recovery program, GDHT goal-directed hemodynamic therapy, n number, % percentage; BMI body mass index, ASA American Society of Anesthesiologists, COPD chronic obstructive pulmonary disease, SIRS systemic inflammatory response syndrome