评估GFR估计方程中的偏差:不当的GFR分层可以产生误导性的结果
1Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Room E7642, Baltimore, MD, 21205, USA. dng@jhu.edu.
Pediatric nephrology (Berlin, Germany)
|February 23, 2024
概括
评估估计的淋巴膜过率 (eGFR) 偏差需要仔细分层. 以测量和估计GFR的平均值进行分层,而不仅仅是一个,确保在功能评估中准确的偏差评估.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 生物统计学 生物统计学
- 儿科研究 儿科研究
背景情况:
- 评估淋巴膜过率 (GFR) 对于评估脏健康至关重要.
- 在估计的GFR (eGFR) 中偏差评估是关键,子组分层可能会揭示在方程中的性能差异.
- 在仅对一个测量进行分层时评估偏差时存在统计谬误 (例如,eGFR或测量GFR[mGFR]).
研究的目的:
- 为了解决GFR偏差评估中的统计谬误,当通过单个测量进行分层时.
- 在偏差评估中提出一个统计学上可靠的GFR分层方法.
- 通过使用儿童慢性病 (CKiD) 研究的数据,实证地调查GFR偏差.
主要方法:
- 使用95%置信区间对比和对比EGFR偏差与mGFR的偏差.
- 进行了分层分析,仅使用mGFR,仅使用eGFR,以及mGFR和eGFR的平均值.
- 利用了儿童慢性病 (CKiD) 研究的数据.
主要成果:
- 分析了来自304名参与者的843项GFR研究 (平均mGFR:48.46,平均eGFR:48.67).
- 在仅用mGFR进行分层时,发现了mGFR<30 (+6.2%) 的显著高估值和mGFR>90 (-12.2%) 的低估值.
- 根据eGFR和mGFR的平均值进行分层,产生了不显著的偏差 (+1.3%和-1.0%),表明强烈的共识.
结论:
- 通过单独使用mGFR或eGFR对GFR偏差的分层评估可能会导致由于统计问题而得出不适当的结论.
- 这项研究用CKiD数据实证地说明了这些统计问题.
- 建议使用eGFR和mGFR的平均值进行分层,以便在eGFR偏差评估中得出有效的推断.
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