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Table 1 Demographic and clinical characteristics (\(\overline{x}\) ± s)

From: Comparison of low-dose morphine intrathecal analgesia and sufentanil PCIA in elderly patients with hip fracture undergoing single spinal anesthesia — a randomized clinical trial

Admission characteristics Group M (n = 38) Group S (n = 36)
Age, (y) 75.2 ± 0.6 76.1 ± 0.7
Gender, (M/F) 26/12 25/11
BMI, (kg/m2) 28.6 ± 0.3 27.2 ± 0.2
MMSE score 26.8 ± 2.4 28.4 ± 2.1
Type Surgery, n (H/T) 28/10 24/12
Oxygen Saturation, (%) 95.9 ± 1.1 96.6 ± 1.2
Infusion volume, (ml) 952.6 ± 44.5 924.7 ± 52.2
Estimated blood loss, (ml) 212.8 ± 20.2 235.5 ± 15.8
Length of surgery, (min) 56.3 ± 1.3 59.7 ± 1.5
Duration of anesthesia, (min) 133.4 ± 12.6 145.5 ± 14.2
  1. Data are given as mean ± SD
  2. M Male, F Female, H hemi-arthroplasty, T total hip replacement