Table 1. Association of Baseline Patient Characteristics With API Usea.
| Characteristic | Unadjusted, No. (%) | Adjusted | ||
|---|---|---|---|---|
| API users (n = 10 895) | API nonusers (n = 31 931) | OR (95% CI) | P value | |
| Sex | ||||
| Female | 4669 (43) | 19 414 (61) | 1 [Reference] | |
| Male | 6226 (57) | 12 517 (39) | 2.22 (2.13-2.33) | <.001 |
| Age, median (IQR), y | 42 (32-56) | 46 (34-59) | 0.98 (0.98-0.99) | <.001 |
| Race/ethnic group | ||||
| Asian | 793 (7) | 1909 (6) | 1 [Reference] | |
| Black | 494 (5) | 1535 (5) | 0.83 (0.73-0.95) | .008 |
| Hispanic | 187 (2) | 664 (2) | 0.75 (0.62-0.91) | .003 |
| White | 8666 (80) | 25 444 (80) | 0.91 (0.84-1.00) | .046 |
| Other or not availableb | 755 (7) | 2379 (7) | 0.83 (0.74-0.94) | .002 |
| Language | ||||
| English | 10 593 (97) | 30 640 (96) | 1 [Reference] | |
| Arabic | 9 (<0.1) | 64 (0.2) | 0.43 (0.20-0.82) | .02 |
| Chinese or Cantonese | 4 (<0.1) | 24 (<0.1) | 0.54 (0.16- 1.45) | .27 |
| Russian | 9 (<0.1) | 25 (<0.1) | 1.18 (0.51-2.50) | .67 |
| Spanish | 65 (1) | 413 (1) | 0.49 (0.37-0.64) | <.001 |
| Not available or otherc | 215 (2) | 765 (2) | 0.83 (0.71-0.97) | .02 |
| Charlson Comorbidity Index score | ||||
| Low (≤2) | 10 285 (94) | 29 999 (94) | 1 [Reference] | |
| Moderate (2-4) | 494 (5) | 1521 (5) | 1.12 (1.00-1.25) | .04 |
| High (≥5) | 116 (1) | 411 (1) | 1.01 (0.81-1.24) | .96 |
Abbreviations: API, application programming interface; IQR, interquartile range; OR, odds ratio.
a
The API nonusers accessed our portal using a mobile device but did connect their device via an API.
b
Other denotes American Indian or Alaska Native, Native Hawaiian or other Pacific Islander, or not reported.
c
Other includes the following languages with at least 5 study participants: Portuguese, Korean, Vietnamese, American Sign Language, Haitian Creole, Japanese, Italian, and Albanian or not recorded.