Linden A. Conducting interrupted time-series analysis for single-and multiple-group comparisons. The Stata Journal. 2015 Jun;15(2):480-500.
中断时间序列分析(Interrupted Time Series Analysis, ITSA),是一种强大的统计工具,无需对照组,仅依赖时间序列数据即可进行大规模干预效应评估。其核心要素包括:明确的干预节点、干预前后多次观测的数据点以及结果变量与时间的线性关系。通过分段回归,ITSA模型解析为四个关键部分:截距、趋势、即时效应和...
中断时间序列分析(ITSA)在评估大规模干预/政策效果时展现优势,特别是当无法获取对照组数据或仅掌握群体层面数据时。其核心在于利用时间序列数据,实现类实验研究设计,克服对照组缺失的问题。以下为ITSA的几个关键点:1. **明确的干预/政策发生时间点**:需确定政策实施的具体时点。2. **等时间间隔的...
间断时间序列分析(Interrupted Time Series Analysis,ITS)其基本思想为通过连续收集干预实施前后多个时间点上的结局数据,比较结局在干预前后水平和趋势的变化,从而评估干预措施对结局产生的影响。ITS 的优势在于即使未设置对照也能通过对干预前后多个观测时间点数据的分析,控制并排除由历史或其他未测量混杂引起的长期趋势变化...
Data were extracted from four public hospitals in Yazd at two time intervals, 15 months before and after the outbreak of COVID-19. Data were analysed using interrupted time series analysis models with STATA17.#Average length of stay (p=0.02) and hospital mortality rate (p<0.01) increased ...
Linden A. Conducting interrupted time-series Analysis for single- and multiple-group comparisons. Stata J Promot Commun Stat Stata. 2015;15(2):480–500. Article Google Scholar Dong C, Liu J, Mi J. Information-Driven Integrated Healthcare: an analysis of the Cooperation Strategy of County Me...
中断时间序列分析(Interrupted Time Series Analysis, ITSA)是利用时间序列数据进行干预效应评估的一种统计方法,其优势在于无需对照组。该方法包含四个基本组成部分:干预的明确时间点、干预前后的多次观测数据,以及结果变量与时间的线性关系。通过分段回归,ITSA模型可以分解为截距、趋势、即时效应和持续效应...
Health status indicators Interrupted time series analysis Research in context Evidence before this study Many studies have demonstrated the adverse impact of the SARS-CoV-2 virus on maternal and perinatal outcomes, as well as the disruption caused by the COVID-19 pandemic on access to and quality...
Analysis of the influence of “4 +7” on the use of ACEI antihypertensive drugs. J Hunan Norm Univ (Med Sci). 2021;18(01):189–92. Google Scholar Ariel L. Conducting interrupted time-series analysis for single- and multiple-group comparisons. Stata J. 2015;15(2):480–500. https:/...
The data were categorized into five one-year age groups and analyzed using interrupted time series analysis with Stata/SE 15 software. Results The age-group specific HFMD incidence rate (1/100 000) during the two periods (January 2015 – July 2016 and August 2016 – December 2017) before ...