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Table 4 Comparison of the BIS values at different time points among the three groups

From: Efficacy of different dose of dexmedetomidine combined with remifentanil in colonoscopy: a randomized controlled trial

Group T0 T1 T2 Minimum value
I 95.1 ± 5.3 91.5 ± 8.2a 93.4 ± 7.2a 86.7 ± 7.5a
II 96.4 ± 2.2 92.4 ± 7.3a 92.5 ± 6.7a 84.4 ± 8.1a
III 97.2 ± 2.4 92.2 ± 8.5a 88.3 ± 9.2a 74.5 ± 8.3abc
  1. aP < 0.05 vs. T0; b P < 0.05 vs. group I; c P < 0.05 vs. group II
  2. n = 50/group