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Table 3 Results of measurements of arterial blood pressure (systolic (s) and diastolic (d)), pulse, and saturation in both groups on particular days

From: Assessment of postoperative pain management and comparison of effectiveness of pain relief treatment involving paravertebral block and thoracic epidural analgesia in patients undergoing posterolateral thoracotomy

Statistics for dependent groups t-test Degrees of freedom p
Comparison of hemodynamic parameters between particular days after surgery in all patients (both groups altogether) Mean N Standard deviation Standard error of the mean
a blood pressure-s- (every 4 h) 1st day 120.62 60 12.41 1.60 −0.31 59 .761
a blood pressure-s- (every 4 h) 2nd day 121.18 60 14.87 1.92
a blood pressure-s- (every 4 h) 1st day 121.15 47 12.81 1.87 −2.32 46 .025
a blood pressure-s- (every 4 h) 3rd day 126.60 47 14.64 2.14
a blood pressure-s- (every 4 h) 2nd day 120.98 47 15.66 2.28 −2.32 46 .025
a blood pressure-s- (every 4 h) 3rd day 126.60 47 14.64 2.14
b blood pressure-d- (every 4 h) 1st day 68.07 60 8.31 1.07 −0.67 59 .504
b blood pressure-d- (every 4 h) 2nd day 68.77 60 9.36 1.21
b blood pressure-d- (every 4 h) 1st day 67.81 47 8.33 1.22 −3.16 46 .003
b blood pressure-d- (every 4 h) 3rd day 72.30 47 9.42 1.37
b blood pressure-d- (every 4 h) 2nd day 68.00 47 9.85 1.44 −3.04 46 .004
b blood pressure-d- (every 4 h) 3rd day 72.30 47 9.42 1.37
pulse 1st day 80.87 60 10.59 1.37 −3.39 59 .001
pulse 2nd day 84.31 60 9.30 1.20
pulse 1st day 80.57 47 10.26 1.50 −2.76 46 .008
pulse 3rd day 84.55 47 9.79 1.43
pulse 2nd day 83.83 47 9.16 1.34 −0.73 46 .468
pulse 3rd day 84.55 47 9.79 1.43
SaO2 1st day 97.19 37 1.69 0.28 5.40 36 .000
SaO2 2nd day 95.19 37 2.38 0.39
SaO2 1st day 97.40 15 2.03 0.52 3.08 14 .008
SaO2 3rd day 95.40 15 2.13 0.55
SaO2 2nd day 94.50 10 2.55 0.81 −0.85 9 .415
SaO2 3rd day 95.10 10 2.47 0.78