Clinical Research
Copyright ©2006 Baishideng Publishing Group Co.
World J Gastroenterol. Oct 7, 2006; 12(37): 6017-6020
Published online Oct 7, 2006. doi: 10.3748/wjg.v12.i37.6017
Table 4 Absolute risk reduction (95%CI for differences between proportions), relative risk reduction (RRR) and number needed to treat (NNT)
Symptoms, dAbsolute risk reduction1 (95% CI for difference in improvement) (%)RRR (%)NNT
Heartburn, d 28+ 11.1 (2.7-19.4)159
Acid regurgitation, d 14+ 15.3 (5.3-25.0)267
Acid regurgitation, d 28+ 10.5 (3.6-17.5)1310
Bloating, d 14+ 16.8 (5.7-27.9)336
Bloating, d 28+ 10.2 (1.4-19.0)1310