Table 2.
Baseline data comparing characteristics in different conditions.
| Characteristic | Total (N=500) |
Intervention (n=282) |
Control (n=218) |
P valuea | |
| Age (years), mean (SD) | 60.5 (11.9) | 59.6 (12.1) | 61.6 (11.4) | .07 | |
| Gender (female), n (%) | 288 (57.6) | 165 (58.5) | 123 (56.4) | .64 | |
| Race/ethnicity, n (%) |
|
|
|
|
|
|
|
Non-Hispanic white | 375 (75.0) | 123 (75.5) | 162 (74.3) | .75 |
|
|
Hispanic | 13 (2.6) | 10 (3.5) | 3 (1.4) | .13 |
| Background, n (%) |
|
|
|
|
|
|
|
Education (college ≥4 years) | 202 (42.4) | 113 (41.7) | 89 (43.4) | .71 |
|
|
Income (≤US $50,000) | 221 (49.3) | 124 (49.0) | 97 (49.7) | .88 |
|
|
Employed for wages | 214 (45.0) | 140 (51.7) | 74 (36.1) | <.001 |
| Health |
|
|
|
|
|
|
|
Body mass index, mean (SD) | 32.4 (7.4) | 32.1 (7.3) | 32.7 (7.6) | .42 |
|
|
Smoking, n (%) | 41 (8.6) | 21 (7.8) | 20 (9.8) | .44 |
|
|
Diabetes, n (%) | 104 (22.0) | 61 (22.6) | 43 (21.3) | .73 |
|
|
Health (very good/excellent), n (%) | 160 (33.6) | 88 (32.5) | 72 (35.1) | .54 |
| Blood pressure (BP) |
|
|
|
|
|
|
|
Systolic (mm Hg), mean (SD) | 132.6 (15.0) | 132.7 (14.9) | 132.4 (15.2) | .84 |
|
|
Diastolic (mm Hg), mean (SD) | 75.5 (11.0) | 75.7 (11.1) | 75.2 (10.9) | .62 |
|
|
Systolic controlled, n (%) | 303 (64.5) | 181 (67.5) | 122 (60.4) | .11 |
|
|
Diastolic controlled, n (%) | 405 (86.2) | 203 (85.8) | 175 (86.6) | .80 |
|
|
Overall controlled, n (%) | 289 (61.5) | 170 (63.4) | 119 (58.9) | .32 |
|
|
Number of BP medications, n (%) | 1.0 (1.61) | 1.0 (1.51) | 1.0 (1.73) | .02 |
| Internet use, n (%) |
|
|
|
|
|
|
|
Internet use for health, ≥once/month | 94 (20.9) | 52 (20.4) | 42 (21.7) | .75 |
|
|
Used Internet before a physician visit | 227 (51.1) | 140 (54.9) | 87 (46.0) | .06 |
a P value from 2-sample t test for continuous outcomes and Pearson chi-square test for categorical outcomes.