Table 6.
Site use-related predictors of patient-perceived health benefits in the Impact Survey: univariate and multivariate models. Ref: reference group.
| Independent variables | Univariate models | Multivariate models | |||||||
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Dependent variable: total number of benefits (out of 15) | Dependent variable: total number of benefits (out of 15) | Benefits related to knowledge/understanding of one’s condition (out of 7) | Benefits related to treatment/management of one’s condition (out of 8) | |||||
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β | P | RRa | β | P | RRa | RR | RR | |
| Age (years)b |
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18-39 | 0.12 | <.001 | 1.13 | -0.02 | 0.10 | 0.98 | 1.00 | 0.97 |
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40-55 | 0.09 | <.001 | 1.10 | -0.14 | <.001 | 1.12 | 0.91 | 0.85 |
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≥55 | 0 | — | Ref | 0 | — | Ref | Ref | Ref |
| Gender |
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Male | 0 | — | Ref | 0 | — | Ref | Ref | Ref |
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Female | 0.07 | <.001 | 1.08 | 0.07 | <.001 | 1.07 | 1.04 | 1.16 |
| Tenure at baselinec | 0.02 | <.001 | 1.02 | 0.02 | <.001 | 1.02 | 1.02 | 1.02 | |
| Community customization |
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None | 0 | — | Ref | 0 | — | Ref | Ref | Ref |
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Customized | 0.16 | <.001 | 1.17 | 0.19 | <.001 | 1.21 | 1.24 | 1.13 |
| Patient activation |
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Level 1 | 0 | — | Ref | 0 | — | Ref | Ref | Ref |
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Level 2 | 0.15 | <.001 | 1.16 | 0.14 | <.001 | 1.15 | 1.21 | 1.06 |
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Level 3 | 0.21 | <.001 | 1.24 | 0.21 | <.001 | 1.23 | 1.32 | 1.12 |
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Level 4 | 0.25 | <.001 | 1.29 | 0.25 | <.001 | 1.29 | 1.42 | 1.13 |
| Sessions |
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Low engagement | 0 | — | Ref | 0 | — | Ref | Ref | Ref |
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Mod-high engagement | 0.13 | <.001 | 1.14 | 0.10 | <.001 | 1.11 | 1.05 | 1.19 |
| Condition grouping |
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Cardiovascular and metabolic diseases | 0.04 | .10 | 1.04 | 0.18 | <.001 | 1.19 | 1.22 | 1.07 |
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Infectious disease | –0.09 | .08 | 0.91 | –0.09 | .08 | 0.91 | 0.87 | 0.98 |
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Inflammation and autoimmunity | –0.04 | .03 | 0.96 | –0.01 | .52 | 0.99 | 1.03 | 0.89 |
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Mental and behavioral health | 0.07 | <.001 | 1.07 | 0.05 | .002 | 1.05 | 1.03 | 1.05 |
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Neurologic | 0.07 | <.001 | 1.07 | 0.01 | .58 | 1.01 | 1.08 | 0.89 |
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Oncology | –0.19 | <.001 | 0.82 | –0.07 | .006 | 0.93 | 1.03 | 0.74 |
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Respiratory | 0.05 | .07 | 1.05 | 0.10 | .002 | 1.10 | 1.15 | 1.03 |
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Other | 0 | — | Ref | 0 | — | Ref | Ref | Ref |
aRelative risk (RR) greater than 1 represents a greater chance (“risk”) of an additional benefit compared to the reference category.
bRepresentation of the survey population in the category 18-24 years was quite low (2%) and thus was combined with the category 25-39 years to create the 18-39 years category. As seen in Table 1, the mean age in the population was 54.
cTenure at baseline variable converted to years (from days) for interpretation purposes.