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. Author manuscript; available in PMC: 2013 Jul 1.
Published in final edited form as: Anesthesiology. 2012 Jul;117(1):22–37. doi: 10.1097/ALN.0b013e31825a2a4e

Table 3.

Correlation between subjective reinforcing and aversive effects

Variables (VAS) Average liking Maximum liking Maximum disliking
p-value R p-value R p-value R
Sedation - - - - - -
Dizziness - average 0.008 − 0.18 - - <0.001 0.44
- maximum 0.004 − 0.20 - - <0.001 0.47
Nausea - average <0.001 − 0.28 - - <0.001 0.59
- maximum <0.001 − 0.23 - - <0.001 0.61
Pruritus - average - - - - - -
- maximum - - 0.009 0.17 - -

R = correlation coefficient, VAS = visual analog scale