Formulae for calculating subgroup disease burden from overall and reported or assumed relative burden estimates

Kwame Owusu-Edusei , Arijita Deb , Elamin H. Elbasha
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引用次数: 0

Abstract

Background

The risk of disease varies across populations based on factors like age, sex, race, ethnicity, socioeconomic status, and underlying medical conditions. Subgroup or subpopulation data are critical in planning, executing and evaluating public health interventions. However, most studies report the values for the overall (total) population with little or no information on the subgroups. As a result, finding subgroup specific data can be challenging.

Objective

In this report, a set of formulae that can be used to calculate subgroup or subpopulation data using the overall estimates and the reported or assumed relative estimates were derived.

Methods

A simple numerical example was used to illustrate the methodology. Next, symbolic formula for calculating the burden (e.g., incidence, prevalence, or average cost) for 3 (and extended to n number of) subgroups or subpopulations were derived. To account for uncertainty in the data, two statistical methods were used to estimate confidence intervals for the point estimates.

Results

The derived formulae indicated that each subgroup or subpopulation's burden (incidence, prevalence, or average cost) can be calculated as the overall burden adjusted by the ratio of that subgroup or subpopulation's relative burden to the sum of the proportion-weighted relative burden (incidence, prevalence, or average cost) of all the subgroups or subpopulations within the population.

Conclusion

These formulae can help to avoid or minimize potential quantitative and qualitative errors in subgroup or subpopulation disease burden estimates used for health research, interventions and/or policy analyses or deliberations.
根据总体和报告的或假设的相对负担估计计算亚组疾病负担的公式
不同人群的疾病风险因年龄、性别、种族、民族、社会经济地位和潜在医疗条件等因素而异。分组或亚人口数据对于规划、执行和评估公共卫生干预措施至关重要。然而,大多数研究报告了总体(总)人口的值,很少或没有关于亚组的信息。因此,查找特定于子组的数据可能具有挑战性。目的通过总体估计和报告或假设的相对估计,推导出一套可用于计算亚组或亚群数据的公式。方法用一个简单的数值算例说明该方法。其次,推导出计算3个(并扩展到n个)亚组或亚群负担(例如发病率、患病率或平均费用)的符号公式。为了考虑数据的不确定性,我们使用了两种统计方法来估计点估计的置信区间。结果推导出的公式表明,每个亚群或亚群的负担(发病率、患病率或平均费用)可计算为该亚群或亚群的相对负担与人口中所有亚群或亚群的比例加权相对负担(发病率、患病率或平均费用)之和的比例调整后的总负担。结论这些公式有助于避免或尽量减少用于卫生研究、干预和/或政策分析或审议的亚组或亚人群疾病负担估算中的潜在定量和定性误差。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Dialogues in health
Dialogues in health Public Health and Health Policy
CiteScore
0.70
自引率
0.00%
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审稿时长
134 days
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