Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Change in depressive symptoms as a result of intervention effects |
Change in levels of depressive symptoms measured using the Patient Health Questionnaire-9, across time and between subjects. The Patient Health Questionnaire-9 is a measure that consists of nine items that correspond to criteria for diagnosing depression. Higher scores indicate greater severity of symptoms. Scores on measure can range from 0-27 with an accepted cut-off of = 10 for moderate symptoms. Reliability and validity of the instrument have been established in a variety of populations, including cardiac patients. |
Baseline, 3, 6 and 12 months |
|
Primary |
Change in intervention effects on depressive symptoms moderated by perceived stigma |
The investigators will determine whether perceived stigma moderates intervention effects on depressive symptoms across time. Stigma refers to negative beliefs about a condition and its treatment. Depression-related stigma will be measured using the Depression Stigma Scale. Developed to measure personal stigma related to being treated for depressive symptoms, the measure has been used extensively since its inception. Scores on the 18-item total scale can range from 0-36, and higher scores indicate greater perceptions of stigma. The instrument has well-established reliability and validity, and has been used in rural Kentuckians. |
Baseline, 3, 6, and 12 months |
|
Primary |
Change in intervention effects on depressive symptoms moderated by sex |
The investigators will determine whether sex moderates intervention effects on depressive symptoms across time. Sex will be self-described by the patient. |
Baseline, 3, 6, and 12 months |
|
Secondary |
Change in intervention effects on depressive symptoms moderated by health literacy |
Determine whether health literacy measured using the Newest Vital Sign moderates intervention effects on change in depressive symptoms. Health literacy is defined as the degree to which individuals have the capacity to obtain, process, and understand basic health information and services needed to make appropriate health decisions. The investigator will assess health literacy using the Newest Vital Sign. This instrument is sensitive, reliable and valid for the assessment of health literacy, and is well-accepted by individuals being screened even when they have low educational level. |
Baseline, 3, 6, and 12 months |
|
Secondary |
Compare all-cause hospitalization rates between intervention groups |
Measurement of hospitalization rates using the electronic health record and patient interview |
3 months |
|
Secondary |
Compare all-cause hospitalization rates between intervention groups |
Measurement of hospitalization rates using the electronic health record and patient interview |
6 months |
|
Secondary |
Compare all-cause hospitalization rates between intervention groups |
Measurement of hospitalization rates using the electronic health record and patient interview |
12 months |
|
Secondary |
Compare physical activity levels between groups |
Measurement of physical activity levels using actigraphy. Actigraphy is an objective method of obtaining accurate and reproducible activity levels, and advances in the technology have produced an instrument that reliably and validly represents physical activity levels. The investigators use the GT9X-BT Link Bluetooth Activity Monitor (ActiGraph, Pensacola, FL). The Actigraph is an omni-directional accelerometer, which assesses acceleration in multiple directions as opposed to uniaxial accelerometer, which is sensitive to movement only in the vertical axis. The actigraph has a dynamic range of ± 8 g. The Actigraph allows researchers to estimate energy expenditure by quantifying the amount time spent in light [<3 metabolic equivalents (METs)], moderate (3-5.99 METs), and vigorous (=6 METs) physical activity. |
3 months |
|
Secondary |
Compare physical activity levels between groups |
Measurement of physical activity levels using actigraphy. Actigraphy is an objective method of obtaining accurate and reproducible activity levels, and advances in the technology have produced an instrument that reliably and validly represents physical activity levels. The investigators use the GT9X-BT Link Bluetooth Activity Monitor (ActiGraph, Pensacola, FL). The Actigraph is an omni-directional accelerometer, which assesses acceleration in multiple directions as opposed to uniaxial accelerometer, which is sensitive to movement only in the vertical axis. The actigraph has a dynamic range of ± 8 g. The Actigraph allows researchers to estimate energy expenditure by quantifying the amount time spent in light [<3 metabolic equivalents (METs)], moderate (3-5.99 METs), and vigorous (=6 METs) physical activity. |
6 months |
|
Secondary |
Compare physical activity levels between groups |
Measurement of physical activity levels using actigraphy. Actigraphy is an objective method of obtaining accurate and reproducible activity levels, and advances in the technology have produced an instrument that reliably and validly represents physical activity levels. The investigators use the GT9X-BT Link Bluetooth Activity Monitor (ActiGraph, Pensacola, FL). The Actigraph is an omni-directional accelerometer, which assesses acceleration in multiple directions as opposed to uniaxial accelerometer, which is sensitive to movement only in the vertical axis. The actigraph has a dynamic range of ± 8 g. The Actigraph allows researchers to estimate energy expenditure by quantifying the amount time spent in light [<3 metabolic equivalents (METs)], moderate (3-5.99 METs), and vigorous (=6 METs) physical activity. |
12 months |
|
Secondary |
Compare medication adherence between groups |
Measurement of medication adherence will be done using the Medication Event Monitoring System. Medication adherence will be measured with the Medication Event Monitoring System (MEMS; AARDEX, Union City, CA), a reliable, accurate and objective method. The MEMS is considered the gold standard in medication adherence measurement. The MEMS offers the advantage of objective measurement and has been successfully used in multiple clinical trials by our group. |
3 months |
|
Secondary |
Compare medication adherence between groups |
Measurement of medication adherence will be done using the Medication Event Monitoring System. Medication adherence will be measured with the Medication Event Monitoring System (MEMS; AARDEX, Union City, CA), a reliable, accurate and objective method. The MEMS is considered the gold standard in medication adherence measurement. The MEMS offers the advantage of objective measurement and has been successfully used in multiple clinical trials by our group. |
6 months |
|
Secondary |
Compare medication adherence between groups |
Measurement of medication adherence will be done using the Medication Event Monitoring System. Medication adherence will be measured with the Medication Event Monitoring System (MEMS; AARDEX, Union City, CA), a reliable, accurate and objective method. The MEMS is considered the gold standard in medication adherence measurement. The MEMS offers the advantage of objective measurement and has been successfully used in multiple clinical trials by our group. |
12 months |
|
Secondary |
Compare the effect of intervention effects on within-meal, across meal, and within-food group diet variety |
Measured using interviews for dietary recall |
Baseline |
|
Secondary |
Compare the effect of intervention effects on within-meal, across meal, and within-food group diet variety |
Measured using interviews for dietary recall |
3 months |
|
Secondary |
Compare the effect of intervention effects on within-meal, across meal, and within-food group diet variety |
Measured using interviews for dietary recall |
6 months |
|
Secondary |
Compare the effect of intervention effects on within-meal, across meal, and within-food group diet variety |
Measured using interviews for dietary recall |
12 months |
|