## Overview
This repository includes the study protocol, analysis plan, and background studies that contributed to the primary analysis funded by the NICHD Grant _Child health risks attributable to swimming in contaminated water at beaches in the United States_ ([R03-HD076066](https://projectreporter.nih.gov/project_info_description.cfm?aid=8493229)).
The PI for the study was John M. Colford, Professor of Epidemiology at UC Berkeley. Ben Arnold maintains this archive, and was the principal scientist who led the analysis and primary outcomes manuscript, which was published in 2016.
## Data
The Data component includes clean, de-identified analysis datasets and a basic set of accompanying metadata and documentation.
## Scripts
All scripts for the primary analysis are available through GitHub and linked to this repository through the Scripts component.
## Additional resources
As of this update to the repository (March 2018), there have been 3 articles published that used these datasets. Note that the scripts in this repository are for the primary outcomes article in AJPH:
Arnold BF, Wade TJ, Benjamin-Chung J, Schiff KC, Griffith JF, Dufour AP, et al. Acute Gastroenteritis and Recreational Water: Highest Burden Among Young US Children. _Am J Public Health_. 2016;106: 1690–1697. https://www.ncbi.nlm.nih.gov/pubmed/27459461
Additional articles include:
Benjamin-Chung J, Arnold BF, Wade TJ, Schiff K, Griffith JF, Dufour AP, et al. Coliphages and Gastrointestinal Illness in Recreational Waters: Pooled Analysis of Six Coastal Beach Cohorts. _Epidemiology_. 2017;28: 644–652. https://www.ncbi.nlm.nih.gov/pubmed/28489717
DeFlorio-Barker S, Arnold BF, Sams EA, Dufour AP, Colford JM Jr, Weisberg SB, et al. Child environmental exposures to water and sand at the beach: Findings from studies of over 68,000 subjects at 12 beaches. _J Expo Sci Environ Epidemiol_. 2018;28: 93–100. https://www.ncbi.nlm.nih.gov/pubmed/29115288
## Contact
If you have questions after reviewing the documentation and materials in this repository, please email Ben Arnold at UC Berkeley (benarnold@berkeley.edu) and Tim Wade at the USEPA (wade.tim@epa.gov).
