Table 6. Comparison of the sensory block characteristics with other studies.

Group L: levobupivacaine group; Group R: ropivacaine group

Study	Onset of sensory block (min)	Duration of sensory block (min)	Regression of sensory block by 2 levels (min)
Present study	Group L: 3.6±0.72; Group R: 4.2±1.0	Group L: 162.5±21.4; Group R: 150.7±42.8	Group L: 130.0±8.3; Group R: 110.0±7.9
Bhalekar et al. [8]	Not stated explicitly	Not explicitly reported	Not specified
Hazarika et al. [9]	Group L: 7.03±1.61; Group R: 5.71±1.75	Group L: 216.7±18.9; Group R: 193.7±14.1	Group L: 99.4±15.0; Group R: 88.7±15.6
Sharma et al. [10]	Group L faster (exact not quoted)	Longer in Group L (statistically significant)	Group L slower (longer regression time)
Gautier et al. [11]	Group L slightly slower (not detailed)	Not directly compared	Reported but not numerically detailed