How are you? Do people with inflammatory bowel disease experience response shift on this question?

Health and Quality of Life Outcomes

Lisa M Lix⁴  Charles N Bernstein³  Susan C Scott²  Nancy E Mayo¹ 

[1] Division of Clinical Epidemiology, Ross Pavilion R4. 29, Royal Victoria Hospital Site, McGill University Health Center, Montreal H3A 1A1, QC, Canada;Division of Clinical Epidemiology, Ross Pavilion R4. 36 Royal Victoria Hospital Site, McGill University Health Center, Montreal H3A 1A1, QC, Canada;University of Manitoba Inflammatory Bowel Disease Clinical and Research Centre, University of Manitoba, 804F-715 McDermot Ave, Winnipeg R3E 3P4, MB, Canada;University of Manitoba, S113-750 Bannatyne Ave, Winnipeg R3E 0W3, MB, Canada

关键词: Longitudinal;    Inflammatory bowel disease;    Quality of life;    Measurement of change;    Response shift;   

Others  :  1207701
DOI  :  10.1186/s12955-015-0232-6

 received in 2014-05-16, accepted in 2015-03-06,  发布年份 2015

【 摘 要 】

Background

As individuals experience changes in their health, they may alter the way they evaluate health and quality of life. The purpose of this study is to estimate the extent to which individuals with IBD change their rating of health over time because of response shift (RS).

Methods

This is a reanalysis of a population-based longitudinal study of IBD in Manitoba, Canada (n = 388). RS was examined using trajectories of the difference between observed and predicted health. Logistic regression and dual trajectories were used to identify predictors of RS.

Results

Disease activity, vitality, pain, somatization, and physical and social function explained 51% of the variation in general health over two years with no evidence of RS in 82% of the sample. Negative RS was found for 8%, who initially rated health better than predicted; positive RS was found for 6%. The positive RS group was younger and had better baseline scores on measures of general health, hostility, pain, mental health and social and role function; less pain and better social function scores at baseline were predictors of negative RS.

Conclusions

In conclusion, the majority of people with IBD did not demonstrate a RS indicating that the health rating over time was stable in relation to that predicted by known time varying clinical variables. This adds to the evidence that the single question on self-rated health is useful for monitoring individuals over time.

【 授权许可】

   
2015 Mayo et al.; licensee BioMed Central.

【 图 表 】

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