Table 2.
Characteristics of the sample population and broader EHR population, 2014–2019.
| Sample distribution | EHR distribution | |
|---|---|---|
| Patient characteristic | N = 995 | N = 6,831,127 |
| Age (median, IQR) | 51.37 (26–63) | NA |
| Age-group (Per cent, %) | ||
| <18 | 19.70 | 10.14 |
| 18–65 | 54.27 | 64.63 |
| 65+ | 22.61 | 25.21 |
| Unknown | 3.42 | 0.03 |
| Sex (Per cent, %) | ||
| Male | 45.63 | 41.51 |
| Female | 54.27 | 58.42 |
| Other/unknown | 0.10 | 0.07 |
| Race (Per cent, %) | ||
| Asian/Pacific | 2.11 | 1.77 |
| Black/African American | 41.61 | 34.48 |
| Caucasian/White | 45.93 | 42.14 |
| Other | 10.25 | 21.61 |
| Structured vaccination data ( n ) | ||
| Vaccine administrations | 2,740 | NA |
| Influenza vaccine administrations | 1,706 | NA |
| Medical encounters | 2,068 | NA |
Age was calculated from the start of the study period (January 1, 2014). Patients born within the study period were automatically added to the <18 group.
NA, Not available.