Table 1 Nonparametric correlation analyses between pairs of variables in chickens (n = 10) undergoing inhalation anaesthesia with isoflurane and sevoflurane alone or combined with NaCl solution (0.25 ml/kg), butorphanol (1 mg/kg) or medetomidine (0.1 mg/kg) in a cross-over randomized study; significant correlations between pairs of variables set in bold. Data obtained as a result of repeated measurements in each individual. Correlations between MAC, HR, NIBP, BISpre, BISpost, BISdiff, SR, and VAS combining data of each anaesthetic protocol are represented
HR | NIBP | VAS | BISpre | BISpost | BISdiff | SR | |
|---|---|---|---|---|---|---|---|
MAC | ρ = 0.26 P < 0.001 n = 268 | ρ = −0.51 P < 0.001 n = 237 | ρ = −0.54 P < 0.001 n = 268 | ρ = − 0.54 P < 0.001 n = 266 | ρ = − 0.41 P < 0.001 n = 267 | ρ = 0.25 P < 0.001 n = 266 | ρ = 0.60 P < 0.001 n = 267 |
HR | ρ = −0.20 P = 0.002 n = 237 | ρ = −0.12 P = 0.047 n = 267 | ρ = 0.09 P = 0.134 n = 266 | ρ = 0.10 P = 0.092 n = 267 | ρ = 0.06 P = 0.330 n = 266 | ρ = 0.04 P = 0.526 n = 267 | |
NIBP | ρ = 0.41 P < 0.001 n = 237 | ρ = 0.33 P < 0.001 n = 236 | ρ = 0.26 P < 0.001 n = 236 | ρ = −0.16 P = 0.015 n = 236 | ρ = −0.39 P < 0.001 n = 236 | ||
VAS | ρ = 0.45 P < 0.001 n = 266 | ρ = 0.41 P < 0.001 n = 266 | ρ = −0.08 P = 0.218 n = 266 | ρ = −0.50 P < 0.001 n = 266 | |||
BISpre | ρ = 0.80 P < 0.001 n = 266 | ρ = −0.25 P < 0.001 n = 266 | ρ = −0.86 P < 0.001 n = 266 | ||||
BISpost | ρ = 0.27 P < 0.001 n = 266 | ρ = −0.83 P < 0.001 n = 267 | |||||
BISdiff | ρ = 0.06 P = 0.321 n = 266 |