Table 2.
Characteristics of Patients with Patient-Portal Use vs Non-Use and Passive and Active Portal Use at an Academic General Internal Medicine Practice (May 1, 2014–April 30, 2015)
| Characteristic | All included patients (N = 17,699) N (%) |
Patient-portal users (N = 9443) N (%) |
||||
|---|---|---|---|---|---|---|
| Non-use N = 8256 |
Use N = 9443 |
p value | Passive use N = 2406 | Active use N = 7037 | p value | |
| Physician type | ||||||
| Attending | 42.3 | 57.7 | p < .01 | 24.2 | 75.8 | p < .01 |
| Resident | 61.2 | 38.8 | 31.9 | 68.1 | ||
| Sociodemographics | ||||||
| Age, mean (±SD) | 53.9 (± 19.0) | 54.4 (± 16.1) | p = .18 | 51.5 (±16.3) | 55.3 (±16.1) | p < .01 |
| < 50 (%) | 49.5 | 50.5 | p < .01 | 31.2 | 68.8 | p < .01 |
| 50–64 (%) | 40.4 | 59.6 | 23.6 | 76.4 | ||
| 65–74 (%) | 40.0 | 60.0 | 18.4 | 81.6 | ||
| 75+ (%) | 59.8 | 40.2 | 23.3 | 76.7 | ||
| Patient gender | ||||||
| Female | 46.3 | 53.7 | p = .37 | 25.0 | 75.0 | p = .25 |
| Male | 47.7 | 53.0 | 26.0 | 74.0 | ||
| Race/ethnicity | ||||||
| White, non-Latino | 37.1 | 62.9 | p < .01 | 22.5 | 77.5 | p < .01 |
| Asian/API | 50.5 | 49.5 | 31.9 | 68.1 | ||
| Black, non-Latino | 66.2 | 33.8 | 24.6 | 75.4 | ||
| Latino/Hispanic | 60.1 | 39.9 | 26.7 | 73.3 | ||
| Other/unk/declined | 52.9 | 47.1 | 27.5 | 72.5 | ||
| Primary language | ||||||
| English | 43.1 | 56.9 | p < .01 | 24.4 | 75.6 | p < .01 |
| Non-English | 67.1 | 32.9 | 36.0 | 64.0 | ||
| Insurance status | ||||||
| Commercial | 39.4 | 60.6% | p < .01 | 26.5 | 73.5 | p < .01 |
| Medicaid | 67.5 | 32.5% | 29.9 | 70.0 | ||
| Medicare | 53.5 | 46.5% | 21.1 | 78.9 | ||
| Medicare/Medicaid | 68.4 | 31.6% | 23.1 | 76.9 | ||
| Mean no. visits per year (±SD) | 3.2 (± 3.5) | 3.3 (± 2.8) | p < .01† | 2.7 (± 2.3) | 3.5 (± 2.9) | p < .01† |
| San Francisco zip code | 49.6 | 50.4 | p < .01 | 26.5 | 73.5 | p = .001 |
*All presented percents are row percents
†Wilcoxon rank sum test used for comparison