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Table 1 Demographic data and patients’ characters (n = 30 in each group)

From: The median effective concentration (EC50) of propofol with different doses of fentanyl during colonoscopy in elderly patients

  Control Group F0.5 Group F1.0
Gender (M/F) 17/13 14/16 15/15
Age (yrs) 78.2 ± 9.2 79.6 ± 6.1 82.1 ± 7.9
BMI (kg/m2) 23.3 ± 2.2 25.2 ± 1.5 24.5 ± 2.5
ASA (II/III) 24/6 25/5 27/3
Hypertension 26/4 24/6 26/4
Diabetes 17/13 18/12 15/15
Drug allergies 3/27 3/27 4/26
Smoking history 11/19 12/18 11/19
Snoring 10/20 9/21 8/22
Colonoscopy time (min) 15.2 ± 1.8 14.6 ± 2.2 16.2 ± 1.9
  1. Values are expressed as mean ± SD or number of patients