Randomized patients in IBS research had different disease characteristics compared to eligible and recruited patients

Journal of Clinical Epidemiology

Volumn 61, Issue 11, 2008, Pages 1176-1181

  Bijkerk, C J ^a   Muris, J W M ^b   Knottnerus, J A ^b   Hoes, A W ^a   de Wit, N J ^a  

^a UNIVERSITY MEDICAL CENTER UTRECHT   (Netherlands)

^b MAASTRICHT UNIVERSITY   (Netherlands)

Author keywords

Epidemiology; Generalizability; Irritable bowel syndrome; Randomized clinical trial; Recruitment; Trial population

Indexed keywords

ISPAGULA; PLACEBO;

ABDOMINAL PAIN; ADULT; ANAMNESIS; ARTICLE; BRAN; CLINICAL EFFECTIVENESS; CLINICAL FEATURE; CONSULTATION; CONTROLLED STUDY; DIET THERAPY; DIETARY FIBER; FEMALE; GENERAL PRACTITIONER; HEALTH SURVEY; HUMAN; IRRITABLE COLON; MAJOR CLINICAL STUDY; MALE; MEDICAL EXAMINATION; MEDICAL RESEARCH; PATIENT SELECTION; PRIMARY MEDICAL CARE; PRIORITY JOURNAL; QUESTIONNAIRE; RANDOMIZATION; RANDOMIZED CONTROLLED TRIAL; RETROSPECTIVE STUDY; SAMPLE SIZE;

ADOLESCENT; ADULT; AGED; DIETARY FIBER; HUMANS; IRRITABLE BOWEL SYNDROME; MIDDLE AGED; PATIENT ACCEPTANCE OF HEALTH CARE; PATIENT SELECTION; PRIMARY HEALTH CARE; SELECTION BIAS; SEVERITY OF ILLNESS INDEX; YOUNG ADULT;

EID: 52949142721     PISSN: 08954356     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jclinepi.2008.02.001     Document Type: Article

References (20)

1. Longstreth G.F., Thompson W.G., Chey W.D., Houghton L.A., Mearin F., and Spiller R.C. Functional bowel disorders. Gastroenterology 130 (2006) 1480-1491
2. Jones R. Likely impacts of recruitment site and methodology on characteristics of enrolled patient population: irritable bowel syndrome clinical trial design. Am J Med 107 5A (1999) 85S-90S
3. Knottnerus J.A. Between iatrotropic stimulus and interiatric referral: the domain of primary care research. J Clin Epidemiol 55 (2002) 1201-1206
4. Knottnerus J.A. Medical decision making by general practitioners and specialists. Fam Pract 8 (1991) 305-307
5. Henningsen P., Zipfel S., and Herzog W. Management of functional somatic syndromes. Lancet 369 9565 (2007) 946-955
6. Talley N.J., Boyce P.M., and Jones M. Predictors of health care seeking for irritable bowel syndrome: a population based study. Gut 41 (1997) 394-398
7. Drossman D.A., McKee D.C., Sandler R.S., Mitchell C.M., Cramer E.M., Lowman B.C., et al. Psychosocial factors in the irritable bowel syndrome. A multivariate study of patients and nonpatients with irritable bowel syndrome. Gastroenterology 95 (1988) 701-708
8. Koloski N.A., Talley N.J., and Boyce P.M. Predictors of health care seeking for irritable bowel syndrome and nonulcer dyspepsia: a critical review of the literature on symptom and psychosocial factors. Am J Gastroenterol 96 (2001) 1340-1349
9. Longstreth G.F., Hawkey C.J., Mayer E.A., Jones R.H., Naesdal J., Wilson I.K., et al. Characteristics of patients with irritable bowel syndrome recruited from three sources: implications for clinical trials. Aliment Pharmacol Ther 15 (2001) 959-964
10. Bijkerk C.J., de Wit N.J., Stalman W.A., Knottnerus J.A., Hoes A.W., and Muris J.W. Irritable bowel syndrome in primary care: the patients' and doctors' views on symptoms, etiology and management. Can J Gastroenterol 17 (2003) 363-368
11. Thompson W.G., Heaton K.W., Smyth G.T., and Smyth C. Irritable bowel syndrome in general practice: prevalence, characteristics, and referral. Gut 46 (2000) 78-82
12. van der Horst H.E., van Dulmen A.M., Schellevis F.G., van Eijk J.T., Fennis J.F., and Bleijenberg G. Do patients with irritable bowel syndrome in primary care really differ from outpatients with irritable bowel syndrome?. Gut 41 (1997) 669-674
13. Vandvik P.O., Aabakken L., and Farup P.G. Diagnosing irritable bowel syndrome: poor agreement between general practitioners and the Rome II criteria. Scand J Gastroenterol 39 (2004) 448-453
14. Mearin F., Badia X., Balboa A., Baro E., Caldwell E., Cucala M., et al. Irritable bowel syndrome prevalence varies enormously depending on the employed diagnostic criteria: comparison of Rome II versus previous criteria in a general population. Scand J Gastroenterol 36 (2001) 1155-1161
15. Hak E., Rovers M.M., Kuyvenhoven M.M., Schellevis F.G., and Verheij T.J. Incidence of GP-diagnosed respiratory tract infections according to age, gender and high-risk co-morbidity: the Second Dutch National Survey of General Practice. Fam Pract 23 (2006) 291-294
16. Francis C.Y., Morris J., and Whorwell P.J. The irritable bowel severity scoring system: a simple method of monitoring irritable bowel syndrome and its progress. Aliment Pharmacol Ther 11 (1997) 395-402
17. Bijkerk C.J., de Wit N.J., Muris J.W., Jones R.H., Knottnerus J.A., and Hoes A.W. Outcome measures in irritable bowel syndrome: comparison of psychometric and methodological characteristics. Am J Gastroenterol 98 (2003) 122-127
18. Naliboff B.D., Fullerton S., and Mayer E.A. Measurement of symptoms in irritable bowel syndrome clinical trials. Am J Med 107 5A (1999) 81S-84S
19. Guthrie E.A., Creed F.H., Whorwell P.J., and Tomenson B. Outpatients with irritable bowel syndrome: a comparison of first time and chronic attenders. Gut 33 (1992) 361-363
20. de Wit N.J., Quartero A.O., Zuithoff A.P., and Numans M.E. Participation and successful patient recruitment in primary care. J Fam Pract 50 (2001) 976