Characteristics of the Participants by Study Group
| Characteristics | Study Intervention Groupa | |
|---|---|---|
| Control N = 569 | Tailored IMCP N = 595 | |
| Patient enrollment by performance site, % | ||
| Rochester, New York | 20.9 | 21.0 |
| Bronx, New York | 24.0 | 24.1 |
| Denver and Southwestern Colorado | 15.6 | 16.0 |
| San Antonio, Texas | 17.9 | 16.7 |
| Sacramento, California | 21.6 | 22.2 |
| Sociodemographics | ||
| Age, mean (SD), y | 57.1 (6.2) | 57.0 (6.1) |
| Female, % | 65.8 | 65.0 |
| Spanish language version of software, % | 23.5 | 23.4 |
| Ethnicity/race category, % | ||
| Hispanic (any race) | 51.5 | 49.7 |
| Non-Hispanic | ||
| White | 20.7 | 21.0 |
| Black | 23.0 | 24.9 |
| Other race | 4.7 | 4.4 |
| Country of birth, % | ||
| United States | 69.2 | 70.6 |
| Argentina | 9.5 | 7.6 |
| Dominican Republic | 7.7 | 9.6 |
| Mexico | 7.7 | 8.2 |
| Puerto Rico | 5.8 | 4.0 |
| Length of time living in United States, %b | ||
| <1 y | 4.0 | 6.9 |
| 1–5 y | 8.0 | 11.4 |
| 6–10 y | 8.6 | 9.7 |
| >10 y | 79.4 | 72.0 |
| Education level, % | ||
| <High school | 15.8 | 19.0 |
| Some high school | 21.5 | 18.1 |
| High school graduate | 25.1 | 23.8 |
| Some college | 18.5 | 20.9 |
| College graduate | 19.0 | 18.3 |
| Income level, % | ||
| <$10,000 | 33.2 | 35.0 |
| $10,000 to <$15,000 | 18.9 | 17.8 |
| $15,000 to <$25,000 | 17.8 | 14.7 |
| $25,000 to <$50,000 | 14.5 | 15.3 |
| >$50,000 | 15.6 | 17.2 |
| Self-rated health literacy (range 1–5), mean (SD)c | 2.0 (1.2) | 2.1 (1.3) |
| Health-related characteristics | ||
| Health status score (range 0–100), mean (SD)d | ||
| SF-12 physical component summary | 42.9 (11.1) | 42.1 (11.7) |
| SF-12 mental component summary | 45.4 (11.4) | 45.5 (11.3) |
| Duration of current primary care clinician relationship, % | ||
| <1 y | 26.3 | 24.6 |
| 1–2 y | 18.9 | 16.8 |
| 3–5 y | 15.6 | 19.9 |
| >5 y | 36.1 | 36.5 |
| Unsure | 3.0 | 2.2 |
| Intervention factors | ||
| Software use time, mean (SD), mine | 32.5 (22.2) | 33.1 (21.8) |
| Satisfaction with software score (range 1–5), mean (SD)f | 4.2 (0.5) | 4.3 (0.5) |
IMCP = interactive multimedia computer program.
↵a P >.10 for all comparisons of characteristics between groups (χ2 test for categorical variables, t test for continuous variables).
↵b Calculated using data from the 350 respondents (175 control, 175 tailored IMCP, 30% of overall sample) indicating a country of birth other than the United States.
↵c Higher scores indicate lower self-assessed health literacy.
↵d Higher scores indicate better health.
↵e Based on available data from 550 control patients and 572 IMCP patients.
↵f Higher scores indicate greater satisfaction.