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Table 3 Numeric Rating Scale (NRS) Values for Pain

From: Gradual withdrawal of remifentanil delays initial post-operative analgesic demand after thyroid surgery; double-blinded, randomized controlled trial

 

PACU arrival

PACU + 15 min

PACU + 30 min

PACU + 45 min

PACU + 60 min

PACU + 75 min

PACU + 90 min

PACU + 105 min

PACU + 120 min

PACU + 240 min

NRS value for pain at rest

 Remifentanil group

2.53 ± 2.32

2.60 ± 2.19

3.06 ± 2.57

2.86 ± 1.99

3.26 ± 1.94

2.73 ± 1.71

2.93 ± 1.58

2.66 ± 1.54

2.06 ± 1.33

1.86 ± 1.72

 Control group

4.53 ± 2.93

5.23 ± 2.86

5.15 ± 2.44

4.46 ± 2.22

3.46 ± 2.25

2.46 ± 1.94

2.07 ± 1.70

1.84 ± 1.34

1.61 ± 1.04

1.30 ± 1.25

 

P value for difference between groups: 0.358

P value for difference between times: < 0.001

P value for interaction: < 0.001

NRS value for pain during head flexion

 Remifentanil group

2.80 ± 2.33

2.93 ± 2.21

3.40 ± 2.66

3.33 ± 2.02

3.80 ± 1.93

3.26 ± 1.79

3.46 ± 1.50

3.13 ± 1.59

2.66 ± 1.75

2.60 ± 2.06

 Control group

5.00 ± 3.13

5.69 ± 2.84

5.30 ± 2.84

4.61 ± 2.72

4.00 ± 2.76

3.15 ± 2.51

2.76 ± 2.42

2.61 ± 2.39

2.38 ± 2.32

1.84 ± 1.62

 

P value for difference between groups: 0.418

P value for difference between times: < 0.001

P value for interaction: < 0.001

  1. Data as Mean ± SD - Analysis by 2-way ANOVA for repeated measures