The Impact of Mindfulness-Based Resilience Training on Stress-Related Biological, Behavioral, and Health-Related Outcomes in Law Enforcement Officers, Wisconsin, 2018-2019

This mixed-methods randomized controlled trial study, conducted in collaboration with three Dane County (Wisconsin) law enforcement agencies, compared the effects of an 8-week mindfulness training (MT) program relative to a waitlist control (WLC) group on biological, behavioral, and self-report measures of stress and stress-related health outcomes. Across a two-year data collection period, the research team randomly assigned 114 sworn law enforcement officers to MT or WLC groups. Across three timepoints (baseline, post-program, and 3-month follow-up), researchers assessed the impact of MT on perceived stress (Aim 1), physical and mental health outcomes including behaviorally assessed and self-reported sleep quality, cardiovascular risk factors, and symptoms of PTSD, anxiety, and depression (Aim 2), and stress-related biological and behavioral markers (Aim 3), including cortisol output and a behavioral assay of hippocampus function. Data collected as part of this study include quantitative measures obtained during laboratory visits and a week of field data collection, as well as optional semi-structured qualitative interview data.
This collection currently contains the following file types available in zipped package format. Excluding changes made for confidentiality purposes, files have been released as they were received by ICPSR:

Summary data: Master data file (nij_masterfile.csv) containing demographics, summed scores from self-report questionnaires, behavioral markers, biomarkers, and mindfulness practice logs; Fitbit activity, heart rate, and sleep data (nij_fitbitSummary.csv); saliva sample collection data (nij_salivaCollectionNotes.csv, nij_salivaQCSpreadsheet.xlsx, nij_salivaryCortCleaned.csv, nij_salivaryCortProcessed.csv, nij_salivaryCortRaw.csv); work event log data (nij_workEventsRaw.xlsx)
Raw behavioral data files: for all timepoints, affective go/no-go task data (agnRaw) and mnemonic similarity task data (mstRaw)
Summary behavioral data files (agnSummary): for all timepoints, affective go/no-go task data
Raw Fitbit data files (fitbitRaw): activity/steps, heart rate, and sleep data for all timepoints
Scripts: R, Python, and bash scripts, with readme files, that were used in biomarker and behavioral marker data cleaning/analysis

Qualitative interview data and documentation are not available at this time.