Participants randomized to attention control will receive nurse-led kidney disease self-care education based on materials developed by The National Institute of Diabetes and Digestive and Kidney Diseases and The National Kidney Foundation. Similar to the intervention, participants will receive one virtual visit from the nurse-interventionist and 6 phone calls (weeks 2, 3, 4, 5, 6 and 7) and weekly educational MMS messages delivered by mobile phone.

This questionnaire measures the affective or emotional aspect of the client's expectations regarding improvement. It asks how much the client expects to improve as a result of the intervention. This is related to the client's emotional responses and affective processes, capturing their hopeful anticipation or optimism about the intervention outcomes.

Higher scores indicate greater belief that the program will be beneficial. For outcome expectancy, the three questions will indicate how much they 1) think and 2) feel the program will help improve medication-taking using a 0 to 10 scale where 0 is no change and 10 is complete improvement, and how much they 3) feel it will reduce missing or taking medications late using 0 (the intervention won't help to reduce missed doses) to 10 (I won't miss any doses). Responses to the three questions are standardized and summed to create a total subscale score (range 0-30).

This questionnaire measures the affective or emotional aspect of the client's expectations regarding improvement. It asks how much the client expects to improve as a result of the intervention. This is related to the client's emotional responses and affective processes, capturing their hopeful anticipation or optimism about the intervention outcomes.

Higher scores indicate greater belief that the program will be beneficial. For outcome expectancy, the three questions will indicate how much they 1) think and 2) feel the program will help improve medication-taking using a 0 to 10 scale where 0 is no change and 10 is complete improvement, and how much they 3) feel it will reduce missing or taking medications late using 0 (the intervention won't help to reduce missed doses) to 10 (I won't miss any doses). Responses to the three questions are standardized and summed to create a total subscale score (range 0-30).

This questionnaire measures the logical and cognitive evaluation of the treatment. It assesses how credible or believable the treatment seems to the client. Questions on this scale typically ask about the perceived scientific legitimacy, logic, and reliability of the treatment. It taps into the client's rational thought processes and their cognitive appraisal of the treatment's potential effectiveness.

Scores on the 3 questions indicate belief the program is credible. For treatment credibility items, participants indicate how 1) logical the program is and 2) how successfully they think it will help prevent missing or taking medications late, and 3) confidence recommending it to a friend all on a 0 to 10 scale and where 0 not logical, not credible, and participant is not confident in recommending to a friend to 10 logical, credible, and would recommend to a friend. Responses are standardized and summed to create a total subscale score on the three questions for a range of 0-30.

This questionnaire measures the logical and cognitive evaluation of the treatment. It assesses how credible or believable the treatment seems to the client. Questions on this scale typically ask about the perceived scientific legitimacy, logic, and reliability of the treatment. It taps into the client's rational thought processes and their cognitive appraisal of the treatment's potential effectiveness.

Scores on the 3 questions indicate belief the program is credible. For treatment credibility items, participants indicate how 1) logical the program is and 2) how successfully they think it will help prevent missing or taking medications late, and 3) confidence recommending it to a friend all on a 0 to 10 scale and where 0 not logical, not credible, and participant is not confident in recommending to a friend to 10 logical, credible, and would recommend to a friend. Responses are standardized and summed to create a total subscale score on the three questions for a range of 0-30.

20-item Systems Thinking Scale (adapted for patients) was totaled from a 5-point scale (Never, Seldom, Some of the time, Often, Most of the time). Range 20 (personal motivation) -100 (system level thinking). This survey assesses participants view of behavior from a personal (motivation) level to a system (environmental) level. This scale evaluates intervention to improve systems thinking away from a personal motivational thinking. The total score was calculated to evaluate how thinking changed from baseline to 8 weeks and 12 weeks between the groups.

Dolansky, M. A., et. al (2020).

20-item Systems Thinking Scale (adapted for patients) was totaled from a 5-point scale (Never, Seldom, Some of the time, Often, Most of the time). Range 20 (personal motivation) -100 (system level thinking). This survey assesses participants view of behavior from a personal (motivation) level to a system (environmental) level. This scale evaluates intervention to improve systems thinking away from a personal motivational thinking. The total score was calculated to evaluate how thinking changed from baseline to 8 weeks and 12 weeks between the groups.

Dolansky, M. A., et. al (2020).

KDIGO. Kidney Disease: Improving global outcomes blood pressure work group, KDIGO clinical practice guideline for the management of blood pressure in chronic kidney disease. Kidney International. 2012;Suppl. 2(5):337-414.

National Institute of Diabetes and Digestive and Kidney Diseases. High Blood Pressure and Kidney Disease. In. NIH Publication No. 14-4572 ed. Bethesda, MD: National Kidney and Urologic Diseases Information Clearinghouse (NKUDIC); 2014:12.

U.S. Department of Health and Human Services. National Institutes of Health. In Brief: Your Guide to Healthy Sleep. In. Vol NIH Publication No. 11-5800. Bethesda, MA: NHLBI Health Information Center; 2011:1-4.

National Kidney Foundation. Nutrition and Chronic Kidney Disease (Stages 1-4). Are You Getting What You Need? In. Vol 11-10-1811_HBE. 11-10-1811_HBE ed. New York, NY: National Kidney Foundation; 2013-2014:1-28.

National Kidney Foundation. Hidden health risks: Kidney Disease, Diabetes, and High Blood Pressure. In. Vol 11-10-1811_HBE. New York, NY: National Kidney Foundation 2014:1-20.

Participants in the attention control will receive educational materials about chronic kidney disease (CKD). The content will be focused on diet, exercise, and living with CKD.

Attention Control: Participants randomized to attention control will receive nurse-led kidney disease self-care education based on materials developed by The National Institute of Diabetes and Digestive and Kidney Diseases and The National Kidney Foundation. Similar to the intervention, participants will receive one virtual visit from the nurse-interventionist and 6 phone calls (weeks 2, 3, 4, 5, 6 and 7) and weekly educational MMS messages delivered by mobile phone.

Total of all reporting groups

During recruitment, collected participant data included stage of chronic kidney disease (CKD), gathered from clinical notes of providing nephrology practitioner. This study was open to those who were in CKD stages 1-4 (better to worse) as defined by kidney disease: Improving global outcomes (KDIGO) and the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) guidelines. CKD is defined as kidney damage where the staging is based on glomerular filtration rate (GFR) range: 1 (normal to high (>90 ml/min/1.73m2) stage 2 (60-89), stage 3a (45-59), 3b (30-44), and stage 4 (15-29).

Does participant use a pill box for their medications?

Average number of over the counter (non-prescription) medications taken on a regular basis within the last three months, such as analgesics, allergy medications, etc.

(A "regular basis" can be considered medications which are taken more than once per week)

Participants self-rated perceived health

Monitored by electronic MEMS caps (AARDEX Group, Belgium) which record the date and time the cap is removed as a proxy for medication being taken. Scale is 0-100%

20-item Systems Thinking Scale (adapted for patients) was totaled from a 5-point scale (Never, Seldom, Some of the time, Often, Most of the time). Range 20 (personal motivation) -100 (system level thinking). This survey assesses participants view of behavior from a personal (motivation) level to a system (environmental) level. This scale evaluates intervention to improve systems thinking away from a personal motivational thinking. The total score was calculated to evaluate how thinking changed from baseline to 8 weeks and 12 weeks between the groups.

Dolansky, M. A., et. al (2020).

Row population differs as 7 did not complete baseline systems thinking due to lost to follow up before intervention started.

Participants in the attention control received educational materials about chronic kidney disease (CKD). The content will be focused on diet, exercise, and stress management with CKD.

Attention Control: Participants randomized to attention control will receive nurse-led kidney disease self-care education based on materials developed by The National Institute of Diabetes and Digestive and Kidney Diseases and The National Kidney Foundation. Similar to the intervention, participants received 7 personalized sessions with a nurse-interventionist (session 1 virtual face-to-face, sessions 2-7 via phone) and 8 weekly educational MMS messages delivered to mobile phones.

Monitored by electronic MEMS caps (AARDEX Group, Belgium) which record the date and time the cap is removed as a proxy for medication being taken.

Response options ranging from 5 (strongly agree) to 1 (strongly disagree). There is no total score. Depending on question "strongly agree" or "strongly disagree" may be related to better acceptability of the intervention. Answers on this survey guided development of individual interview questions to be qualitatively evaluated. The items on the Acceptability Scale, for example, had response options ranging from 5 (strongly agree) to 1 (strongly disagree). If a person indicated strong agreement with the item "Getting messages on the mobile phone helps support my health behaviors," we would develop interview questions to read "You indicated on your survey that getting messages on your phone supported your health behaviors. Tell me what behaviors the messages supported? Give me an example one of these behaviors."

This questionnaire measures the affective or emotional aspect of the client's expectations regarding improvement. It asks how much the client expects to improve as a result of the intervention. This is related to the client's emotional responses and affective processes, capturing their hopeful anticipation or optimism about the intervention outcomes.

Higher scores indicate greater belief that the program will be beneficial. For outcome expectancy, the three questions will indicate how much they 1) think and 2) feel the program will help improve medication-taking using a 0 to 10 scale where 0 is no change and 10 is complete improvement, and how much they 3) feel it will reduce missing or taking medications late using 0 (the intervention won't help to reduce missed doses) to 10 (I won't miss any doses). Responses to the three questions are standardized and summed to create a total subscale score (range 0-30).

This questionnaire measures the affective or emotional aspect of the client's expectations regarding improvement. It asks how much the client expects to improve as a result of the intervention. This is related to the client's emotional responses and affective processes, capturing their hopeful anticipation or optimism about the intervention outcomes.

Higher scores indicate greater belief that the program will be beneficial. For outcome expectancy, the three questions will indicate how much they 1) think and 2) feel the program will help improve medication-taking using a 0 to 10 scale where 0 is no change and 10 is complete improvement, and how much they 3) feel it will reduce missing or taking medications late using 0 (the intervention won't help to reduce missed doses) to 10 (I won't miss any doses). Responses to the three questions are standardized and summed to create a total subscale score (range 0-30).

This questionnaire measures the logical and cognitive evaluation of the treatment. It assesses how credible or believable the treatment seems to the client. Questions on this scale typically ask about the perceived scientific legitimacy, logic, and reliability of the treatment. It taps into the client's rational thought processes and their cognitive appraisal of the treatment's potential effectiveness.

Scores on the 3 questions indicate belief the program is credible. For treatment credibility items, participants indicate how 1) logical the program is and 2) how successfully they think it will help prevent missing or taking medications late, and 3) confidence recommending it to a friend all on a 0 to 10 scale and where 0 not logical, not credible, and participant is not confident in recommending to a friend to 10 logical, credible, and would recommend to a friend. Responses are standardized and summed to create a total subscale score on the three questions for a range of 0-30.

This questionnaire measures the logical and cognitive evaluation of the treatment. It assesses how credible or believable the treatment seems to the client. Questions on this scale typically ask about the perceived scientific legitimacy, logic, and reliability of the treatment. It taps into the client's rational thought processes and their cognitive appraisal of the treatment's potential effectiveness.

Scores on the 3 questions indicate belief the program is credible. For treatment credibility items, participants indicate how 1) logical the program is and 2) how successfully they think it will help prevent missing or taking medications late, and 3) confidence recommending it to a friend all on a 0 to 10 scale and where 0 not logical, not credible, and participant is not confident in recommending to a friend to 10 logical, credible, and would recommend to a friend. Responses are standardized and summed to create a total subscale score on the three questions for a range of 0-30.

20-item Systems Thinking Scale (adapted for patients) was totaled from a 5-point scale (Never, Seldom, Some of the time, Often, Most of the time). Range 20 (personal motivation) -100 (system level thinking). This survey assesses participants view of behavior from a personal (motivation) level to a system (environmental) level. This scale evaluates intervention to improve systems thinking away from a personal motivational thinking. The total score was calculated to evaluate how thinking changed from baseline to 8 weeks and 12 weeks between the groups.

Dolansky, M. A., et. al (2020).

20-item Systems Thinking Scale (adapted for patients) was totaled from a 5-point scale (Never, Seldom, Some of the time, Often, Most of the time). Range 20 (personal motivation) -100 (system level thinking). This survey assesses participants view of behavior from a personal (motivation) level to a system (environmental) level. This scale evaluates intervention to improve systems thinking away from a personal motivational thinking. The total score was calculated to evaluate how thinking changed from baseline to 8 weeks and 12 weeks between the groups.

Dolansky, M. A., et. al (2020).

Participants in the attention control received educational materials about chronic kidney disease (CKD). The content will be focused on diet, exercise, and stress management with CKD.

Attention Control: Participants randomized to attention control will receive nurse-led kidney disease self-care education based on materials developed by The National Institute of Diabetes and Digestive and Kidney Diseases and The National Kidney Foundation. Similar to the intervention, participants received 7 personalized sessions with a nurse-interventionist (session 1 virtual face-to-face, sessions 2-7 via phone) and 8 weekly educational MMS messages delivered to mobile phones.