Chronic gastrointestinal symptoms and quality of life in the Korean population

Table 5 Comparison of SF-36 subscales between subjects without chronic GI symptoms, and those with GERD, UD and IBS

SF-36 Subscale	Subjects without CGIS (n = 1153)	GERD (n = 50)	UD (n = 166)	IBS (n = 31)
Physical functioning	87.6 ± 5.1	76.0 ± 6.2b	81.7 ± 5.4b	82.0 ± 66.8a
Role physical	80.1 ± 10.3	64.9 ± 12.4b	68.1 ± 10.9b	67.3 ± 13.7a
Bodily pain	89.3 ± 6.7	74.6 ± 8.1b	76.5 ± 7.1b	77.7 ± 8.9b
General health	68.8 ± 7.0	49.3 ± 8.5b	52.7 ± 7.5b	50.0 ± 9.4b
Vitality	57.6 ± 7.5	50.0 ± 9.0a	51.0 ± 7.9b	45.9 ± 10.0b
Social functioning	92.0 ± 4.9	88.3 ± 5.9	86.2 ± 5.2b	86.7 ± 6.6a
Role emotional	86.2 ± 10.4	80.7 ± 12.5	77.7 ± 11.0b	71.7 ± 13.8b
Mental health	77.7 ± 6.2	67.9 ± 7.5b	71.6 ± 6.6b	66.1 ± 8.3b

Note: Age, gender, education level and economic level adjusted mean and 95% confidence interval of SF-36 subscale. CGIS: Chronic GI symptom; GERD: Gastroesophageal reflux disease; UD: Uninvestigated dyspepsia; IBS: Irritable bowel syndrome. Comparisons were performed between GERD vs no CGIS, dyspepsia vs no CGIS, and IBS vs no CGIS. P value was adjusted by Bonferroni method.

^aP < 0.05 compared to subjects without chronic gastrointestinal symptom;

^bP < 0.01 compared to subjects without chronic gastrointestinal symptom.