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. 1996 Mar;5(1):9–12. doi: 10.1136/qshc.5.1.9

Making sense of ambiguity: evaluation in internal reliability and face validity of the SF 36 questionnaire in women presenting with menorrhagia.

C Jenkinson 1, V Peto 1, A Coulter 1
PMCID: PMC1055348  PMID: 10157276

Abstract

OBJECTIVE--To determine the face validity and internal reliability of the short form 36 (SF 36) health survey questionnaire in women presenting with menorrhagia. DESIGN--Postal survey of women recruited by their general practitioners followed by interviews of a selected subsample. PATIENTS--348 women who had consulted their general practitioner with excessive menstrual bleeding and completed questionnaires after treatment. 49 women selected from this group were interviewed in depth about their health status, and requested to complete the SF 36 questionnaire. MAIN MEASURES--Subjective accounts of functioning and wellbeing as measured by the eight scales of the SF 36 questionnaire. RESULTS--Data from the postal survey indicated that the ¿general health perceptions¿ and ¿mental health¿ scales of the SF 36 questionnaire had lower internal reliability coefficients than documented elsewhere. In the follow up interviews several questions on the SF 36 questionnaire were commented on as inappropriate or difficult to answer for patients with heavy menstrual bleeding. CONCLUSIONS--Some questions on the SF 36 questionnaire were difficult to answer for this group of patients. Such problems can adversely effect the validity of the measure. It is suggested that comments of patients upon measures such as the SF 36 questionnaire could both determine the appropriateness of such measures for given studies and influence questionnaire design.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Brazier J. E., Harper R., Jones N. M., O'Cathain A., Thomas K. J., Usherwood T., Westlake L. Validating the SF-36 health survey questionnaire: new outcome measure for primary care. BMJ. 1992 Jul 18;305(6846):160–164. doi: 10.1136/bmj.305.6846.160. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Coulter A., Peto V., Doll H. Patients' preferences and general practitioners' decisions in the treatment of menstrual disorders. Fam Pract. 1994 Mar;11(1):67–74. doi: 10.1093/fampra/11.1.67. [DOI] [PubMed] [Google Scholar]
  3. Coulter A., Peto V., Jenkinson C. Quality of life and patient satisfaction following treatment for menorrhagia. Fam Pract. 1994 Dec;11(4):394–401. doi: 10.1093/fampra/11.4.394. [DOI] [PubMed] [Google Scholar]
  4. Donovan J. L., Frankel S. J., Eyles J. D. Assessing the need for health status measures. J Epidemiol Community Health. 1993 Apr;47(2):158–162. doi: 10.1136/jech.47.2.158. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Fitzpatrick R., Fletcher A., Gore S., Jones D., Spiegelhalter D., Cox D. Quality of life measures in health care. I: Applications and issues in assessment. BMJ. 1992 Oct 31;305(6861):1074–1077. doi: 10.1136/bmj.305.6861.1074. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Garratt A. M., Ruta D. A., Abdalla M. I., Buckingham J. K., Russell I. T. The SF36 health survey questionnaire: an outcome measure suitable for routine use within the NHS? BMJ. 1993 May 29;306(6890):1440–1444. doi: 10.1136/bmj.306.6890.1440. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Geigle R., Jones S. B. Outcomes measurement: a report from the front. Inquiry. 1990 Spring;27(1):7–13. [PubMed] [Google Scholar]
  8. Jenkinson C. Evaluating the efficacy of medical treatment: possibilities and limitations. Soc Sci Med. 1995 Nov;41(10):1395–1401. doi: 10.1016/0277-9536(95)00119-r. [DOI] [PubMed] [Google Scholar]
  9. Jenkinson C., Peto V., Coulter A. Measuring change over time: a comparison of results from a global single item of health status and the multi-dimensional SF-36 health status survey questionnaire in patients presenting with menorrhagia. Qual Life Res. 1994 Oct;3(5):317–321. doi: 10.1007/BF00451723. [DOI] [PubMed] [Google Scholar]
  10. Silver G. A. Paul Anthony Lembcke, MD, MPH: a pioneer in medical care evaluation. Am J Public Health. 1990 Mar;80(3):342–348. doi: 10.2105/ajph.80.3.342. [DOI] [PMC free article] [PubMed] [Google Scholar]

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