Table 4.
Multivariable Model for Patient Portal-related Communication (N = 1552).
| Sociodemographic Characteristics |
Securely Message Provider in the Past 12 Months |
Request PrescriptionRefills in the Past 12 Months |
Make a Decision on How to Treat Condition in the Past 12 Months |
Securely Share it with Other Providers in the Past 12 Months | ||||
|---|---|---|---|---|---|---|---|---|
| IRR | 95% CI | IRR | 95% CI | OR | 95% CI | OR | 95% CI | |
| Race/Ethnicity | ||||||||
| Non-Hispanic White | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 |
| Non-Hispanic Black | 0.94 | 0.71, 1.25 | 1.11 | 0.84, 1.49 | 1.46 | 0.77, 2.79 | 1.85 | 0.84, 4.07 |
| Hispanic | 0.84 | 0.62, 1.13 | 0.99 | 0.71, 1.37 | 1.08 | 0.41, 2.88 | 0.79 | 0.25, 2.45 |
| Other | 1.09 | 0.79, 1.50 | 1.10 | 0.75, 1.60 | 2.64 | 1.12, 6.24 * | 3.61 | 1.25, 10.42 * |
| Age | ||||||||
| 18–34 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 |
| 35–49 | 0.98 | 0.77, 1.26 | 1.08 | 0.68, 1.72 | 0.93 | 0.37, 2.35 | 0.80 | 0.30, 2.13 |
| 50–64 | 0.77 | 0.58, 1.01 | 1.08 | 0.70, 1.68 | 0.49 | 0.19, 1.25 | 0.48 | 0.18, 1.28 |
| 65–74 | 0.73 | 0.57, 0.94 * | 1.06 | 0.64, 1.74 | 0.30 | 0.11, 0.84 * | 0.34 | 0.09, 1.22 |
| ≥ 75 | 0.54 | 0.35, 0.83 ** | 1.14 | 0.65, 2.01 | 0.70 | 0.22, 2.16 | 0.17 | 0.03, 0.99 * |
| Gender | ||||||||
| Male | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 |
| Female | 0.99 | 0.83, 1.18 | 0.83 | 0.68, 1.02 | 1.02 | 0.61, 1.71 | 0.99 | 0.55, 1.79 |
| Education | ||||||||
| High School or Less | 0.87 | 0.67, 1.14 | 0.87 | 0.64, 1.19 | 1.03 | 0.47, 2.27 | 0.67 | 0.26, 1.73 |
| Some College | 1.00 | 0.82, 1.21 | 0.95 | 0.75, 1.22 | 0.91 | 0.50, 1.65 | 1.02 | 0.50, 2.07 |
| College Graduate or More | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 |
| Income | ||||||||
| Less than $20,000 | 0.87 | 0.59, 1.29 | 0.73 | 0.43, 1.25 | 1.14 | 0.39, 3.31 | 0.37 | 0.12, 1.18 |
| $20,000 to <$35,000 | 0.75 | 0.52, 1.10 | 1.14 | 0.76, 1.71 | 0.85 | 0.34, 2.12 | 0.72 | 0.27, 1.93 |
| $35,000 to <$50,000 | 0.62 | 0.44, 0.86 ** | 1.00 | 0.73, 1.35 | 1.56 | 0.69, 3.53 | 1.39 | 0.45, 4.35 |
| $50,000 to <$75,000 | 0.99 | 0.78, 1.26 | 0.98 | 0.74, 1.31 | 1.03 | 0.51, 2.06 | 0.79 | 0.36, 1.73 |
| $75,000 or More | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 |
| Born in the United States | ||||||||
| Yes | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 |
| No | 0.92 | 0.68, 1.23 | 0.74 | 0.50, 1.08 | 0.59 | 0.27, 1.28 | 0.81 | 0.30, 2.16 |
| Multimorbidity | ||||||||
| Yes | 0.93 | 0.78, 1.11 | 1.20 | 0.97, 1.48 | 1.48 | 0.86, 2.57 | 2.04 | 1.16, 3.59 * |
| No | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 |
| HINTS 5 Survey | ||||||||
| Cycle 1 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 | 1.00 | 1.00, 1.00 |
| Cycle 2 | 1.17 | 1.00, 1.36 * | 1.07 | 0.88, 1.30 | 1.99 | 1.23, 3.20 ** | 1.28 | 0.77, 2.11 |
The multivariable regression model (logistic and Poisson) was adjusted for insurance status, employment status, having a regular provider, general health status, smoking status, and family history of cancer. We present the results of the Poisson regression models as incident rate ratios (IRR) and the results of the logistic regression models as odds ratio (OR) with 95% confidence interval (CI). * p-value ≤ 0.05, ** p-value ≤ 0.01.