Table 5.

Changes in gallstone severity score by symptom frequency group in 115 responding patients from the study population of 153 patients n (%)

Preoperative SFG	Patients	Preoperative		Responders	Postoperative		mean % reduction in GSS
		mean GSS	mean VAS		mean GSS	mean VAS
Severe disease	37 (24.2)	6.11	81.1	29 (78.4)	1.76	33.0	69.1
Moderate disease	59 (38.6)	6.47	86.6	41 (69.5)	1.32	15.8	78.7
Mild disease	34 (22.2)	6.09	81.3	26 (76.5)	1.04	12.8	87.0
Chronic disease	23 (15.0)	4.35	76.8	19 (82.6)	1.00	8.9	62.7

SFG: Symptom frequency groups; GSS: Gallstone symptom score; VAS: Visual analogue scale score.