An innovative approach based on real-world big data mining for calculating the sample size of the reference interval established using transformed parametric and non-parametric methods

Autor: Chaochao Ma, Li’an Hou, Yutong Zou, Xiaoli Ma, Danchen Wang, Yingying Hu, Ailing Song, Xinqi Cheng, Ling Qiu
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: BMC Medical Research Methodology, Vol 22, Iss 1, Pp 1-9 (2022)
Druh dokumentu: article
ISSN: 1471-2288
DOI: 10.1186/s12874-022-01751-1
Popis: Abstract Background Currently, the direct method is the main approach for establishment of reference interval (RI). However, only a handful of studies have described the effects of sample size on establishment of RI and estimation of sample size. We describe a novel approach for estimation of the sample size when establishing RIs using the transformed parametric and non-parametric methods. Methods A total of 3,697 healthy participants were enrolled in this study. We adopted a two-layer nested loop sample size estimation method to determine the effects of sample size on RI, using thyroid-related hormone as an example. The sample size was selected as the calculation result when the width of the confidence interval (CI) of the upper and lower limit of the RI were both stably
Databáze: Directory of Open Access Journals
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