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Table 4 Comparison between group C and group D according to RBS and cortisol level

From: Dexamethasone as a bupivacaine adjuvant for ultrasound-guided interscalene brachial plexus block: a prospective randomized study

Time Group D (N = 22) Group C (N = 23) P value Effect of group D relative to group C
Mean ± SE 95% CI
Random blood glucose (mg/dl), mean ± SD
 Baseline 111.6 ± 12. 111.1 ± 12. ^0.888 0.5 ± 3.6 − 6.7–7.7
 PACU 160.9 ± 12. 164.3 ± 13. ^0.374 − 3.4 ± 3.8 − 11.2–4.3
 After 1 h PO 163.0 ± 10. 168.0 ± 10. ^0.109 − 5.1 ± 3.1 − 11.4–1.2
 After 2 h PO 163.6 ± 8.5 170.2 ± 8.7 ^0.170 − 3.6 ± 2.6 − 8.8–1.6
 After 4 h PO 165.9 ± 8.7 171.5 ± 9.6 ^0.558 − 1.6 ± 2.7 − 7.1–3.9
 After 6 h PO 159.3 ± 12. 152.6 ± 12. ^0.087 6.7 ± 3.8 − 1.0–14.4
 After 12 h PO 131.6 ± 12. 131.1 ± 12. ^0.888 0.5 ± 3.6 − 6.7–7.7
 After 24 h PO 111.6 ± 12. 111.1 ± 12. ^0.888 0.5 ± 3.6 − 6.7–7.7
Cortisol (ng/ml), mean ± SD
 After 2 h PO 234.5 ± 17. 235.2 ± 17. ^0.897 − 0.7 ± 5.2 − 11.1–9.8
 After 6 h PO 215.0 ± 17. 215.2 ± 17. ^0.967 − 0.2 ± 5.3 − 10.9–10.
 After 12 h PO 184.1 ± 13. 183.5 ± 13. ^0.880 0.6 ± 4.0 − 7.5–8.7
  1. CI confidence interval
  2. ^Independent t test