Table 1. IBS patient characteristics.
| IBS Patients | |
|---|---|
| N = 201,322 | |
| Demographics | |
| Age, Mean ± SD [Median]a | 49.4 ± 15.4 [50.0] |
| Female, n (%) | 155,449 (77.2) |
| Region, n (%) | |
| South | 84,428 (41.9) |
| North-Central | 53,666 (26.7) |
| West | 37,784 (18.8) |
| North-East | 25,444 (12.6) |
| Insurance Plan Type, n (%) | |
| Preferred Provider Organization (PPO) | 116,160 (57.7) |
| Health Maintenance Organization (HMO) | 30,302 (15.1) |
| Comprehensive Coverage | 23,069 (11.5) |
| Point of Service (POS) / POS with Capitation | 20,493 (10.2) |
| Consumer-directed Health Plan (CDHP)/ High-deductible HP (HDHP) or Exclusive Provider Organization (EPO) | 7,134 (3.5) |
| Unknown b | 4,164 (2.1) |
| Modified Charlson-Quan Comorbidity Index, Mean ± SD [Median]c | 1.6 ± 1.8 [1.0] |
| IBS-Related Comorbiditiesc, n (%) | |
| Abdominal Pain | 123,653 (61.4) |
| Gastroesophageal Reflux Disease | 57,962 (28.8) |
| Headache | 46,523 (23.1) |
| Lower Back Pain | 43,489 (21.6) |
| Constipation | 35,627 (17.7) |
| Non-infectious Colitis | 33,766 (16.8) |
| Diverticulosis | 32,095 (15.9) |
| Chronic Pelvic Pain | 24,572 (12.2) |
| Fibromyalgia | 23,685 (11.8) |
| Asthma | 21,957 (10.9) |
Notes:
a Age was calculated as of the first IBS diagnosis date.
b "Unknown" includes patients from Puerto Rico and Virgin Islands as well as all those patients in the United States for whom geographic location information was not available.
c Evaluated during the 24-month study period.
Abbreviations: IBS, irritable bowel syndrome; SD, standard deviation.