Table 2.

Quality of sleep after surgery.

	First 12H	First night	Second night	Third night
Control group (N = 24)	2.3 ± 0.8	2.3 ± 0.8	2.2 ± 0.8	2.6 ± 0.6
Ropivacaine group (N = 22)	1.9 ± 1.1	2.3 ± 0.8	2.6 ± 0.6	2.7 ± 0.6

Sleep is quoted on a 4 points scale from 0 (the worst) to 3 (the best imaginable). Values are expressed as mean +/- standard deviation