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Table 3 Comparison of propofol doses between the two groups

From: The propofol-sparing effect of intravenous lidocaine in elderly patients undergoing colonoscopy: a randomized, double-blinded, controlled study

Items NS + P
group (n = 40)
L + P
group (n = 39)
Total propofol (mg) (95% CI) 136.8 (104.6, 175.8) (111.9–138.4) 122.4 (93.0, 162.0) (141.7–166.3)
Supplemental propofol (mg) (95% CI) 69.9 ± 39.2 (57.7–82.1) 51.5 ± 38.6# (39.4–63.6)
“Unit propofol” (mg kg−1 min−1) 0.18 ± 0.05 0.14 ± 0.04*
Frequency of supplemental boluses (times) 2.1 ± 1.1 1.4 ± 0.9**
  1. Compared with NS + P group, *P = 0.002, #P = 0.039, **P = 0.003
  2. Normally distributed data were expressed as mean ± standard deviation and the data that does not conform to the normal distribution were expressed as p50 (p25, p75)