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Table 2 Baseline characteristics according to group allocation

From: Effect of goal-directed haemodynamic therapy guided by non-invasive monitoring on perioperative complications in elderly hip fracture patients within an enhanced recovery pathway

  Control (CG)
n=272
Intervention (IG)
n=279
Age 84.9 ± 6.2 85.2 ± 7.4
 65 to < 75 years 15 (5.5%) 30 (10.8%)
 75 to < 85 years 125 (46.0%) 97 (34.8%)
 ≥ 85 years 132 (48.5%) 152 (54.5%)
Gender
 Male 84 (30.9%) 68 (24.4%)
 Female 188 (69.1%) 211 (75.6%)
ASA
 I–II 85 (31.2%) 41 (14.7%)
 III–IV 187 (68.8%) 238 (85.3%)
Charlson comorbidity index
 Absence de comorbidity (0–1) 125 (46.0%) 109 (39.1%)
 Low comorbidity (2) 50 (18.4%) 57 (20.4%)
 High comorbidity (3 or more) 97 (35.7%) 113 (40.5%)
Cardiovascular history
 Valvulopathy 21 (7.7%) 31 (11.1%)
 Arrhythmia 73 (26.8%) 58 (20.8%)
 Ischemic cardiopathy 17 (6.3%) 29 (10.4%)
 Pulmonary thromboembolism (PTE) 1 (0.4%) 3 (1.1%)
 Hypertension 177 (65.1%) 212 (76.0%)
Total number of drugs 6 (IQR 4 to 8) 7 (IQR 5 to 10)
 ≤ 4 drugs 89 (32.7%) 68 (24.4%)
 > 4 drugs 183 (67.3%) 211 (75.6%)
Type of fracture
 Intra-capsular 121 (44.5%) 124 (44.4%)
 Extra-capsular 151 (55.5%) 155 (55.6%)
Haemoglobin at admission
 Haemoglobin > 12 g/dl 159 (58.5%) 169 (60.6%)
 Haemoglobin ≤ 12 g/dl 113 (41.5%) 110 (39.4%)
Creatinine at admission
 Creatinine ≤ 1.09 mg/dl 178 (65.7%) 175 (62.7%)
 Creatinine > 1.09 mg/dl 93 (34.3%) 104 (37.3%)
Anaesthesia
 General 28 (10.3%) 28 (10.0%)
 Spinal 244 (89.7%) 251 (90.0%)
Type of implant
 Hip prosthesis 103 (37.9%) 102 (36.6%)
 Dynamic hip screw 122 (44.9%) 57 (20.4%)
 Intramedullary nail 43 (15.8%) 118 (42.3%)
 Others 4 (1.5%) 2 (0.7%)
Surgical delay
 ≤ 48 h 150 (55.1) 191 (68.5)
 > 48 h 122 (44.9) 88 (31.5)
Surgery time (minutes) 80 (IQR 65 to 105) 90 (IQR 70 to 120)
  1. Mean ± Standard deviation; n (%); median (IQR 25th percentile to 75th percentile)