minoRityPower
1.0.0
minoRityPower是一个 R 包,旨在估计统计功效,以检测医疗保健系统级干预措施对临床试验注册的影响,特别注重加速少数族裔参与者的招募。该软件包专为 ARPA-H 计划应用程序开发,通过混合效应模型和基于引导程序的模拟提供设施级和参与者级分析。
临床试验在招募少数族裔参与者方面经常面临挑战,导致医学研究中的代表性不足。医疗保健系统层面的干预措施旨在通过实施系统性变革来提高少数族裔的入学率,从而解决这一问题。该软件包提供了以下工具:
# Install from GitHub
devtools :: install_github( " biostochastics/ minoRityPower " )
该软件包实现了两种互补的功耗分析方法:
该方法对机构级别的注册率进行建模,重点关注干预措施如何影响每个机构注册的参与者数量:
# Facility-level power analysis
facility_results <- run_power_facility(
effect_sizes1 = c( 1.25 , 1.50 ), # 25% and 50% increase in enrollment rate
Ns = c( 30 , 45 , 60 ), # Number of facilities per arm
tau2_facility = 0.64 , # Facility-level variance
mean_rate = 11 # Average monthly enrollment rate
)
这种方法对个人入学概率进行建模,重点关注干预措施如何影响少数族裔参与者的入学可能性:
# Participant-level power analysis
participant_results <- run_power_participant(
effect_sizes1 = c( 1.25 , 1.50 ), # Main intervention effects
effect_sizes2 = c( 1.75 , 2.00 ), # Minority-specific effects
Ns = c( 30 , 45 , 60 ), # Facilities per arm
minority_rate = 0.3 , # Expected minority enrollment proportion
tau2_trial = 1.19 # Trial-level variance
)
该软件包提供两种分析类型的详细输出:
library( minoRityPower )
# 1. Facility-level analysis
facility_results <- run_power_facility(
effect_sizes1 = c( 1.25 , 1.50 ),
Ns = c( 30 , 45 , 60 ),
tau2_facility = 0.64 ,
R_boot = 1000
)
# 2. Participant-level analysis
participant_results <- run_power_participant(
effect_sizes1 = c( 1.25 , 1.50 ), # Main effects
effect_sizes2 = c( 1.75 , 2.00 ), # Minority interaction effects
Ns = c( 30 , 45 , 60 ),
minority_rate = 0.3 ,
R_boot = 1000
)
# 3. View results
print( facility_results $ power_table )
print( participant_results $ power_table )
# 4. Display plots
print( facility_results $ power_plot )
print( participant_results $ power_plot )
如果您使用此包,请引用:
@software { your_citation_2024 ,
author = { Sergey Kornilov } ,
title = { minoRityPower : Power Analysis for Healthcare System Interventions in Clinical Trial Enrollment } ,
year = { 2024 } ,
publisher = { GitHub } ,
version = { 0.1.1 } ,
url = { https://github.com/biostochastics/minoRityPower }
}
该项目根据 MIT 许可证获得许可 - 有关详细信息,请参阅许可证文件。
欢迎贡献!请通过 GitHub 提交问题和拉取请求。
这项工作的开发是为了支持对 ARPA-H 计划应用的医疗保健系统级干预措施的评估,重点是加快少数族裔参与者的临床试验注册。