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Table 2 Changes of surgical stress index during pinning

From: Comparison of the effect of different infusion rates of sufentanil on surgical stress index during cranial pinning in children under general anaesthesia: a randomized controlled study

  low mid high
Baseline 57.8 [50.9–63.4] 52.6 [50.4–55.2] 53.4 [50.3–59.4]
1 54.7 [48.9–58.1] 51.8 [45.1–55.3] 52.8[43.7–58.2]
2 53..0 [49.5–53.1] 49.2 [45.90–51.9] 50.7 [43.1–56.0]
3 51.2 [48.9–57.3] 51.4 [46.9–56.4] 52.1 [41.3–57.5]
4 49.3 [44.50–59.0] 48.5 [43.2–52.8] 51.2 [47.5–57.1]
5 52.6 [47.1–56.7] 47.5 [38.2–54.7] 48.1 [43.3–61.9]