Parameters

Group A (n = 24)

Group B (n = 26)

P value

Time to 50% residual rate in the remnant stomach (minutes)

77.4 ± 8.2

61.8 ± 6.9

<0.01

The residual rates at 120 minutes in the remnant stomach (%)

49.8 ± 8.6

37.6 ± 6.2

<0.01

Blood concentration of acetoaminophen at 45 minutes (μg/ml)

46.2 ± 5.7

45.5 ± 4.8

ns