Table 3.

Summary of numerical rating scales (lower and upper descriptors only) used by the investigator (clinician)*

Variable	Lower descriptor (0)	Upper descriptor (3)
Posture of cat in recovery cagea	Comfortable, relaxed	Rigid or tense
Behaviour of cat in recovery cagea	Alert, positive interaction with clinician when cage is opened	Depressed, aggressive or non-responsive to stimulation
Pain elicited on manipulation of wound or area of operationb	No reaction to even strong manipulation	Extreme reaction to any manipulation
Overall pain controlc	Excellent	Poor

*Each variable was assessed on a 4-point scale (0 to 3).

^aAssessments at V1 to V5.

^bAssessments at V1 to V5 and VF (final visit).

^cAssessments at V2 to V5 and VF.

All four end points were secondary endpoints in the statistical analysis. The posture, behaviour and pain on manipulation scores were summed for each animal to provide the primary end point, the global investigator score.