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Dig Dis Sci. 2019 Jan;64(1):182-188. doi: 10.1007/s10620-018-5302-2. Epub 2018 Oct 15.

Declining Rates of Referral for Irritable Bowel Syndrome Without Constipation at a Tertiary Care Center.

Author information

1
Division of General Internal Medicine, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
2
Biostatistics and Bioinformatics Research Center, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
3
GI Motility Program, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA.
4
Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
5
Medically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
6
GI Motility Program, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA. Nipaporn.Pichetshote@cshs.org.
7
Medically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, CA, USA. Nipaporn.Pichetshote@cshs.org.

Abstract

BACKGROUND:

Irritable bowel syndrome (IBS) is a common chronic disorder of the gastrointestinal tract. Several treatments have been developed, including rifaximin for the treatment of IBS without constipation (non-IBS-C), but no studies have evaluated the effect of these therapies on patient referral rates to tertiary care gastroenterology clinics.

AIM:

To assess referral patterns for IBS patients at a tertiary motility clinic over a 10-year period.

METHODS:

Data from consecutive patients referred to the clinic during 2006-2016 were analyzed. Trends in the proportion of referrals and prior rifaximin use in IBS-C versus non-IBS-C groups were compared.

RESULTS:

A total of 814 adult patients were referred to a single physician panel for IBS-related symptoms. Of these, 776 were included in the study [528 females (68%), average age 45.7 ± 15.9 years), comprising 431 IBS-C (55.5%) and 345 non-IBS-C (44.5%) patients. The proportion of non-IBS-C referrals declined significantly from 53.0% in 2006 to 27.3% in 2016 (Chi-square, p < 0.0001, Cochran-Armitage trend test p = 0.0001), and the proportion of IBS-C referrals increased significantly from 46.9% in 2006 to 72.7% in 2016 (Chi-square, p < 0.0001, Cochran-Armitage trend test p = 0.0004). Non-IBS-C referrals with prior rifaximin use significantly increased from 22.7% in 2006 to 66.7% in 2016 (Cochran-Armitage trend test, p = 0.008).

CONCLUSIONS:

The results indicate a significantly declining tertiary care referral rate for non-IBS-C over the past decade. While not directly linked, there has been an increase in rifaximin use in the same population during the same time interval.

KEYWORDS:

Constipation; Diarrhea; Irritable bowel syndrome; Referral rates; Rifaximin

PMID:
30324554
DOI:
10.1007/s10620-018-5302-2
[Indexed for MEDLINE]

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