Table 3.

Do Bowel Symptoms Recorded by a Diary Predict the Rome Subtype Among Women in Olmsted County, Minnesota

Bowel Symptom	Odds Ratios (95% CI) for Constipation Versus Normal	Odds Ratios (95% CI) for Diarrhea Versus Normal
Stool frequency	1.54 (0.76–3.09)	1.91 (1.03–3.66)
Stool frequency (CV [%])	1.01 (0.99–1.04)	1.00 (0.98–1.02)
Stool form	0.61 (0.37–0.98)	1.19 (0.77–1.85)
Variation in stool form (Maximum proportionate stool form score [%])	0.70 (0.1–4.94)	0.23 (0.03–1.49)
Sense of incomplete evacuation	0.93 (0.39–2.14)	2.18 (1.04–4.59)
Rectal urgency (%)	1.82 (0.78–4.24)	3.06 (1.42–6.63)
Straining to begin	4.10 (1.69–10.20)	1.07 (0.38–2.93)
Straining to end	4.70 (1.59–15.18)	3.67 (1.23–11.97)
Any fecal incontinence	1.02 (0.44–2.33)	0.82 (0.37–1.76)

Model explained 35% of the variance between controls and subjects with functional bowel disorders.

CV (%) = percent coefficient of variation.