Institutt for samfunnsmedisin og sykepleie, NTNU.
Institutt for samfunnsmedisin og sykepleie, NTNU, og, Avdeling for helseledelse og helseøkonomi, Universitetet i Oslo.
Tidsskr Nor Laegeforen. 2023 Sep 19;143(13). doi: 10.4045/tidsskr.22.0726. Print 2023 Sep 26.
The interpretation of research results is affected by how results are presented. We show the importance of presenting the association between body mass index (BMI) and healthcare costs from both the individual perspective and the population perspective.
Using measurements of height and weight from the Nord-Trøndelag Health Study (HUNT Study) linked to register data on specialist healthcare costs and demographics, we estimated the association between BMI and specialist healthcare costs by means of regression analyses.
From an individual perspective, the association between BMI and specialist healthcare costs was strongest in people in obesity classes 2 and 3 (BMI ≥ 35 kg/m2). In contrast, from a population perspective, the association was strongest in the case of overweight (BMI ≥ 25 kg/m2) or obesity class 1 (BMI ≥ 30 kg/m2), as there are more people in this BMI range.
The study emphasises the importance of including the population perspective in research studies and policy decision-making processes. People with severe obesity have a high individual risk, but their use of health services has less significance for the overall costs of health care since they are fewer people in this group.
研究结果的解释受到结果呈现方式的影响。我们展示了从个体和人群两个角度呈现体重指数（BMI）与医疗保健成本之间关联的重要性。
我们利用来自北特伦德拉格健康研究（HUNT 研究）的身高和体重测量值，并与专科医疗保健成本和人口统计学数据的登记数据相关联，通过回归分析来估计 BMI 与专科医疗保健成本之间的关联。
从个体角度来看，BMI 与专科医疗保健成本之间的关联在肥胖症 2 级和 3 级（BMI≥35kg/m2）人群中最强。相比之下，从人群角度来看，超重（BMI≥25kg/m2）或肥胖症 1 级（BMI≥30kg/m2）的关联最强，因为这个 BMI 范围内的人数更多。
该研究强调了在研究和政策决策过程中纳入人群视角的重要性。严重肥胖的人个人风险较高，但由于该人群人数较少，他们对整体医疗保健成本的医疗服务使用意义不大。
