Table 1.
Descriptive statistics of COVID-19 vaccination incentive policies and socioeconomic factors at the county level.
| Variable | Frequency (n) | Percentage (%) | Mean | Std. Dev. | Min | Max |
|---|---|---|---|---|---|---|
| Panel time range | 1 Jan 2021 | 1 Jul 2021 | ||||
| Rate of vaccinated population per county | 16.14 | 15.20 | 0.00 | 99.90 | ||
| Incentive policies: | ||||||
| No incentives | 10,367 | 51.84 | ||||
| Bonus incentives | 2233 | 11.17 | ||||
| Lottery incentives | 7399 | 37.00 | ||||
| Number of days of implementation of incentive policies | 2.46 | 8.90 | 0.00 | 55.00 | ||
| ACIP VRS Phasing: | ||||||
| Followed the ACIP VRS | 13,972 | 64.16 | ||||
| Slowly expanded the ACIP VRS | 448 | 2.06 | ||||
| Quickly expanded the ACIP VRS | 7357 | 33.78 | ||||
| Number of days that COVID-19 vaccines were available to the general population | 25.07 | 33.18 | 0.00 | 107.00 | ||
| Biden support rate | 0.34 | 0.16 | 0.05 | 0.92.00 | ||
| Number of nurse practitioners | 54.29 | 15,45.66 | 0.23 | 3937.77 | ||
| Unemployment rate | 6.71 | 2.23 | 1.70 | 22.50 | ||
| Per capita income | 25,074.69 | 5999.78 | 9688.43 | 66,518.36 | ||
| Percentage of adults with a bachelor’s degree | 21.82 | 9.55 | 5.40 | 78.50 | ||
| Rate of BIPOC | 0.15 | 0.16 | 0.01 | 0.94 | ||
| Percentage of people aged 65 and above | 0.19 | 0.05 | 0.00 | 0.58 |
Note: ACIP = CDC Advisory Committee on Immunization Practices; VRS = vaccine recommendations and schedules; BIPOC = Black, Indigenous, and people of color.