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. 2020 Jul 14;277(12):3341–3348. doi: 10.1007/s00405-020-06196-0

Table 2.

Blood pressure, heart rate and oxygen saturation mean comparison results using Student’s t test, pre-surgically, intra-surgically and post-surgically

Mean difference CI 95% p value
SBP
 Pre-Int 9.24 1.36–17.11 0.02
 Int-Pos 1.81 −4.9–8.52 0.59
 Pre-Pos 11.23 5.29–17.18  < 0.001
DBP
 Pre-Int 3.67 −0.18–7.51 0.06
 Int-Pos 0.57 −5.42–6.56 0.85
 Pre-Pos 4.53 −2.18–11.25 0.18
HR*
 Int-Pre 2.64 0.03–5.25 0.05
 Pos-Int 1.1 2.61–4.8 0.55
 Pos-Pre 3.37 0.32–6.42 0.03
O2Sat
 Pre-Int 0.44 0.1–0.79 0.01
 Int-Pos 3.26 −2.85–9.36 0.29
 Pre-Pos 3.7 −2.41–9.81 0.23

SBP systolic blood pressure, DBP diastolic blood pressure, HR heart rate, O2Sat oxygen saturation, Pre pre-surgical, Int intra-surgical, Pos post-surgical, CI confidence interval

*The order of the comparisons was switched to make the values positive, as the HR slightly increased during the procedure