Table 2

Duration on PPI, acid outputs, and pH before and during treatment with lansoprazole

N = 81
Before Lansoprazole
After Lansoprazole

Duration on PPI (Years)
1.2 ± 0.2
7.1 ± 0.6
Median (range)
0.8 (0.1, 5.0)
6.25 (0,16)



Acid output


BAO (mmol/h)
25.1 ± 1.9
2.4 ± 0.3
PAO (mmol/h)
51.0 ± 2.9
10.4 ± 1.0



pH Median (range)


Basal pH
1.2 (1.0, 8.2)
2.9 (1.1, 8.1)
Stimulated pH
1.1 (1.0, 8.0)
1.6 (1.0, 8.2)

Wilcox et al. BMC Gastroenterology 2008 8:18   doi:10.1186/1471-230X-8-18