Table 1.

Frequency of patients for each symptom at baseline (T0). M=males; F=females, Mean age in years

N=2,979	T0
	n	%	M/F	Mean age
Abdominal pain	2387	80.1%	1256/1131	55
Abdominal bloating	2102	70.6%	1090/1012	56
Flatulence	1936	65.0%	1037/899	56
Borborygmi	1690	56.7%	872/818	56