Division of Clinical Epidemiology, Ross Pavilion R4. 29, Royal Victoria Hospital Site, McGill University Health Center, Montreal, QC, H3A 1A1, Canada.
Division of Clinical Epidemiology, Ross Pavilion R4. 36 Royal Victoria Hospital Site, McGill University Health Center, Montreal, QC, H3A 1A1, Canada.
Health Qual Life Outcomes. 2015 May 6;13:52. doi: 10.1186/s12955-015-0232-6.
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).
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.
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.
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.
随着个体健康状况的变化，他们可能会改变对健康和生活质量的评估方式。本研究的目的是估计有炎症性肠病（IBD）的个体因反应转移（RS）而随时间改变其健康评分的程度。
这是对加拿大马尼托巴省 IBD 的基于人群的纵向研究（n=388）的重新分析。使用观察到的和预测的健康之间差异的轨迹来检查 RS。逻辑回归和双轨迹用于确定 RS 的预测因素。
疾病活动度、活力、疼痛、躯体化、身体和社会功能解释了两年内一般健康状况变化的 51%，82%的样本没有 RS 的证据。8%的人最初的健康评分好于预测值，表现出负 RS；6%的人表现出正 RS。正 RS 组年龄较小，在一般健康、敌意、疼痛、心理健康以及社会和角色功能方面的基线评分较高；基线时疼痛较轻和社会功能较好是负 RS 的预测因素。
总之，大多数 IBD 患者没有表现出 RS，这表明随着时间的推移，健康评分与已知随时间变化的临床变量预测的健康评分是稳定的。这进一步证明，自我报告的健康状况单一问题可用于随时间监测个体。
