Table 2:

Injection response in low-dose (0.25%) and high-dose (0.5%) bupivacaine groups

Concentration of Bupivacaine% Pain Remaining PostinjectionAll
0%>0% to <20%≥20% to <40%≥40% to <60%≥60% to <80%≥80% to <100%100%
No. Injections%No. Injections%No. Injections%No. Injections%No. Injections%No. Injections%No. Injections%No. Injections%
0.25%
    Injection event
        Multiple6552.054.0129.6108.01512.043.21411.2125100.0
        Single4742.076.387.1119.81614.343.61917.0112100.0
        All11247.3125.1208.4218.93113.183.43313.9237100.0
0.50%
    Injection event
        Multiple2942.657.468.81420.6811.811.557.468100.0
        Single3135.689.21618.41011.5910.311.11213.887100.0
        All6038.7138.42214.22415.51711.021.31711.0155100.0