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Table 3 The changes of mean arterial pressure and heart rate at different time points

From: The relationship between the level of μ-opioid receptor (μORs) and postoperative analgesic use in patients undergoing septoplasty: a prospective randomized controlled trial

  Tramadol group (n = 60) Control group (n = 60) p-value
Arterial pressure (Mean ± SD)
 Arrival 116.54 ± 15.92 124.91 ± 11.06 0.354
 1st h 98.54 ± 15.88 106.88 ± 11.66 0.048**
 3rd h 91.78 ± 3.36 93.62 ± 2.12 0.030**
 7th h 83.34 ± 10.06 84.20 ± 10.96 0.846
 10th h 78.20 ± 7.62 77.00 ± 6.82 0.636
 24th h 71.54 ± 3.34 72.76 ± 2.46 0.172
Heart rate (Mean ± SD)
 Arrival 88.03 ± 5.22 104.14 ± 5.82 0.001*
 1st h 86.51 ± 5.15 102.73 ± 5.78 0.001*
 3rd h 85.93 ± 5.02 100.86 ± 5.86 0.001*
 7th h 79.12 ± 3.20 92.14 ± 2.60 0.192
 10th h 78.50 ± 2.32 86.58 ± 1.82 0.146
 24th h 72.84 ± 4.93 94.34 ± 5.74 0.318
  1. SD Standard deviation, h hour. Student t test * p < 0.01, **p < 0.05