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Table 1 Characteristics of the patients

From: Irritable bowel syndrome-specific health-related quality of life instrument: development and psychometric evaluation

Variable n (%)
Gender
 Male 110 (41.2)
 Female 157 (58.8)
Age in years (Mean ± SD = 46.69 ± 14.57 years)
 20–29 36 (13.5)
 30–39 56 (21.0)
 40–49 58 (21.7)
 50–59 64 (23.9)
 60–69 35 (13.2)
  ≥ 70 18 (6.7)
Marital status
 Married/living together 191 (71.6)
 Divorced/widow(er) 17 (6.4)
 Unmarried 54 (20.2)
 Other 2 (0.7)
 Missing value 3 (1.1)
Education
 Elementary school 14 (5.3)
 Middle school 22 (8.2)
 High school 71 (26.6)
 College and above 157 (58.8)
 Other 1 (0.4)
 Missing value 2 (0.7)
IBS subtype
 IBS-C 41 (15.3)
 IBS-D 143 (53.6)
 IBS-M 47 (17.6)
 IBS-U 36 (13.5)
  1. IBS-C, constipation-predominant IBS; IBS-D, diarrhea-predominant IBS; IBS-M, mixed-symptom IBS; IBS-U, IBS subtype unknown