Table 1 Data sources, survey sample, and dates of data collection
Data source | Responses | Dates of data collection | Pandemic phase |
|---|---|---|---|
2016 National Profile of Local Health Departments study | Census of all LHDs | January to April 2016 | Pre-COVID-19 |
2018 Forces of Change survey | Representative sample of LHDs | March to May 2018 | |
2019 Injury and Violence Prevention survey | Sample of LHDs that responded to 2018 Forces of Change and reported conducting opioid use and abuse activities in the prior year | January to February 2019 | |
2019 National Profile of Local Health Departments study | Census of all LHDs | March to August 2019 | |
2020 Forces of Change survey | Representative sample of LHDs | October 2020 to March 2021 | Mid-COVID-19 |
2021 Injury and Violence Prevention survey | Representative sample of LHDs | March to May 2021 |