Clinical Research
Copyright ©2006 Baishideng Publishing Group Co.
World J Gastroenterol. Feb 28, 2006; 12(8): 1235-1242
Published online Feb 28, 2006. doi: 10.3748/wjg.v12.i8.1235
Figure 4
Figure 4 Percentages of patient-years with active disease (grey columns) and hospitalization (black columns), respectively, according to appendectomy and smoking status (App: appendectomized; Sm: smokers). Numbers indicate the number of patient-years in each group. aP < 0.05 vs App, non-Sm.; bP < 0.001 vs App, non-Sm.; dP < 0.001 vs non-App, non-Sm.