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Table 1 Baseline characteristics of patients recruited to the OPTIMISE trial

From: Cost-effectiveness of a cardiac output-guided haemodynamic therapy algorithm in high-risk patients undergoing major gastrointestinal surgery

  Peri-operative cardiac output-guided haemodynamic therapy algorithm Usual care
(n = 368) (n = 365)
Age (year) 71.26 (8.4) 72.20 (8.6)
Gender, male 237 (64.4) 229 (62.7)
Urgency of surgery   
 Elective surgery 356 (96.7) 352 (96.4)
 Non-elective surgery 12 (3.3) 13 (3.6)
Surgery†   
 Upper gastrointestinal 108 (29.4) 111 (30.4)
 Lower gastrointestinal 168 (45.7) 165 (45.2)
 Small bowel +/− pancreas 86 (23.4) 82 (22.5)
 Urological or gynaecological involving gut 5 (1.4) 4 (1.1)
 No surgery performed 1 (0.3) 3 (0.8)
ASA gradea   
 1 22 (6.0) 27 (7.4)
 2 200 (54.4) 174 (47.7)
 3 143 (38.9) 155 (42.5)
 4 3 (0.8) 9 (2.5)
Location following surgery   
 Critical care level 2 258 (70.1) 246 (67.4)
 Critical care level 3 42 (11.4) 40 (11.0)
 Post-anaesthetic recovery unit 10 (2.7) 9 (2.5)
 General ward 58 (15.8) 70 (19.2)
Renal impairment 26 (7.1) 12 (3.3)
Diabetes mellitus 57 (15.5) 65 (17.8)
Risk factor for cardiac or respiratory disease 118 (32.1) 118 (32.3)
Baseline quality of life scorea 0.78 (0.2) 0.77 (0.3)
  1. Data presented as mean (SD) or n (%)
  2. aSummaries presented after multiple imputation. †Planned surgical procedure assumed when type of surgery performed was missing for one case