Table 1.
Characteristics of patients having at least 1 chronic condition in EHR sources
| Conditions by encounter diagnosis |
Conditions by problem list |
ASMD | |||
|---|---|---|---|---|---|
| Characteristics | N = 589 761 | N = 651 521 | |||
| n | % | n | % | ||
| Age | |||||
| 45–54 | 198 199 | 33.6 | 225 312 | 34.6 | 0.0256 |
| 55–64 | 222 120 | 37.7 | 245 075 | 37.6 | |
| 65+ | 169 442 | 28.7 | 181 134 | 27.8 | |
| Sex | 0.0014 | ||||
| Female | 336 438 | 57.1 | 372 134 | 57.1 | |
| Race/ethnicity | <0.0001 | ||||
| Hispanic | 176 803 | 30.0 | 196 182 | 30.1 | |
| Non-Hispanic Asian | 18 832 | 3.2 | 20 821 | 3.2 | |
| Non-Hispanic Black | 107 161 | 18.2 | 119 319 | 18.3 | |
| Non-Hispanic American Indian/Alaska Native | 2528 | 0.4 | 2711 | 0.4 | |
| Non-Hispanic Native Hawaiian/Other Pacific Islander | 2160 | 0.4 | 2333 | 0.4 | |
| Non-Hispanic White | 250 456 | 42.5 | 273 784 | 42.0 | |
| Non-Hispanic multiple | 2372 | 0.4 | 2599 | 0.4 | |
| Unknown (race or ethnicity) | 29 449 | 5.0 | 33 772 | 5.2 | |
| Household income | <0.0001 | ||||
| <138% FPL | 405 532 | 68.8 | 447 058 | 68.6 | |
| ≥138% FPL | 91 101 | 15.5 | 100 280 | 15.4 | |
| Missing | 93 128 | 15.8 | 104 183 | 16.0 | |
| Insurance payor | 0.0421 | ||||
| Medicare/Medicaid | 341 088 | 57.8 | 364 904 | 56.0 | |
| Private | 94 726 | 16.1 | 109 541 | 16.8 | |
| Other | 31 474 | 5.3 | 34 130 | 5.2 | |
| Uninsured | 122 297 | 20.7 | 142 728 | 21.9 | |
| Missing | 176 | ≤0.1 | 218 | ≤0.1 | |
| Chronic condition count | 0.1129 | ||||
| 0 | 0 | 0.0 | 0 | 0.0 | |
| 1 | 97 218 | 16.5 | 127 588 | 19.6 | |
| 2–3 | 236 654 | 40.1 | 260 105 | 39.9 | |
| 4+ | 255 889 | 43.4 | 263 828 | 40.5 | |
| Office visits per year | 0.0815 | ||||
| ≤3 | 232 380 | 39.4 | 282 221 | 43.3 | |
| 4–5 | 193 076 | 32.7 | 202 256 | 31.0 | |
| >5 | 164 305 | 27.9 | 167 044 | 25.6 | |
ASMD: absolute standardized mean difference, (values greater than 0.1 denote meaningful differences between comparison groups); FPL: Household income was calculated as a percentage of the Federal Poverty Level.
Note: Clinics were present in 22 US states: Alaska, California, Florida, Georgia, Hawaii, Indiana, Kansas, Massachusetts, Maryland, Minnesota, Missouri, Montana, North Carolina, New Mexico, Nevada, Ohio, Oregon, Rhode Island, South Carolina, Texas, Washington, and Wisconsin.