Table 1 Overall characteristics of study patients in the overall cohort and active and non-users of the patient portal
Overall cohort N = 28,028 | Active users of portal | Non-users of portal | p value | |
|---|---|---|---|---|
Number of patients | 28,028 | 22,955 (81.9%) | 5071 (18.1%) | |
Female | 16,138 | 13,684 (84.8%) | 2453 (15.2%) | P < 0.001 |
Age, years | P < 0.001 | |||
18–40 | 6021 | 5006 (83.1%) | 1015 (16.9%) | |
41–65 | 11,425 | 9605 (84.1%) | 1819 (15.9%) | |
> 65 | 10,582 | 8344 (78.9%) | 2237 (21.1%) | |
Race | P < 0.001 | |||
White | 26,706 | 21,863 (81.9%) | 4842 (18.1%) | |
Black | 220 | 161 (73.2%) | 59 (26.8%) | |
Asian/Pacific Islander | 556 | 485 (87.2%) | 71 (12.8%) | |
Native American | 86 | 65 (75.6%) | 21 (24.4%) | |
Other | 460 | 381 (83.0%) | 78 (17.0%) | |
Smoking status | P < 0.001 | |||
Never | 15,545 | 13,271 (85.4%) | 2274 (14.6%) | |
Former | 9262 | 7643 (82.5%) | 1619 (17.5%) | |
Current | 2613 | 1714 (66.0%) | 899 (34.0%) | |
Unknown | 608 | 327 (54.0%) | 279 (46.0%) | |
Chronic illness | ||||
Congestive heart failure | 1833 | 1246 (68.0%) | 587 (32.0%) | P < 0.001 |
COPD | 7805 | 6329 (81.0%) | 1476 (19.0%) | P = 0.03 |
Cancer | 3789 | 3104 (81.9%) | 685 (18.1%) | P = 0.98 |
Cerebrovascular disease | 2670 | 1965 (73.6%) | 705 (26.4%) | P < 0.001 |
Diabetes mellitus with complications | 1923 | 1395 (72.5%) | 528 (27.5%) | P < 0.001 |
Diabetes mellitus without complications | 4218 | 3192 (75.7%) | 1025 (24.3%) | P < 0.001 |
History of MI | 1486 | 968 (65.1%) | 518 (34.9%) | P < 0.001 |
Peripheral vascular disease | 4117 | 2998 (72.8%) | 1119 (27.2%) | P < 0.001 |
Renal disease | 1950 | 1441 (73.9%) | 509 (26.1%) | P < 0.001 |
BMI category | P < 0.001 | |||
Underweight (< 18.5) | 396 | 287 (72.5%) | 109 (27.5%) | |
Normal (18.5–24.9) | 8170 | 6906 (84.5%) | 1264 (15.5%) | |
Overweight (25.0–29.9) | 8724 | 7281 (83.5%) | 1443 (16.5%) | |
Obese (≥ 30.0) | 9846 | 7954 (80.8%) | 1892(19.2%) | |
Unknown | 892 | 527 (59.1%) | 365 (40.9%) |