Table 1:

Baseline characteristics and healthcare utilization by patients with IBS

Demographic characteristics
Mean age (SD)	44.1 (17.0)
Female gender	107 (78.1%)
Clinical characteristics	N (%)
IBS subtype
IBS-D	38 (27.7)
IBS-C	69 (50.4)
IBS-M	30 (21.9)
Mean IBS symptom severity*	266.1 (100.9)
Baseline characteristics**	N (%)
Anxiety	48 (35)
Depression	23 (16.8)
Sleep disturbance	35 (25.6)
Prior gastroenterology consultation	107 (78.1)
Duration of symptoms
< 1 year	16 (11.7)
1–5 years	27 (19.7)
5–10 years	17 (12.4)
>10 years	77 (56.2)
Healthcare utilization in three months after initial consultation
Serological or stool investigations performed	76 (55.5)
Median number of diagnostic tests performed***	1 (0–4)
Median number of medications taking for their GI symptoms****	2 (0–10)
Median number of recommendations at initial visit*****	4 (1–10)
Median number of phone calls	0 (0–9)
Median number of follow-up visits	1 (0–4)
Median number of services referred to	0 (0–2)
Physician characteristics
Patients evaluated by female physician	101(73.7)
Patients evaluated by Fellows at first visit	51 (37.2)

Mean values are expressed with standard deviation (SD) and median values with range.

^*Measured using IBS-SSS

^**Defined by PROMIS T-score ≥60

^***Includes endoscopies, manometries, breath tests, and radiologic investigations

^****Includes over the counter as well as prescription

^*****Includes pharmacological and non-pharmacological therapies, referrals, lifestyle changes