Aims
Persons with concomitant heart failure (HF) and diabetes mellitus (DM) have
complicated, competing, self-care expectations and treatment regimens that may reduce
quality of life (QOL). This randomized controlled trial tested an integrated self-care
intervention on outcomes of HF and DM QOL, physical function and physical activity
(PA).
Methods
Participants with HF and DM (n=134, mean age 57.4 ± 11 years,
66% men, 69% minority) were randomized to usual care attention control
(control) or intervention groups. The control group received standard HF and DM
educational brochures with follow up phone contact; Intervention received
education/counseling on combined HF and DM self-care (diet, medications,
self-monitoring, symptoms, and PA) with follow up home visit and phone counseling.
Measures including questionnaires for HF and DM-specific, and overall QOL; Physical
activity frequency; and physical function (6 minute walk test; 6MWT) were obtained at
baseline, 3 and 6 months. Analysis included mixed models with a priori post-hoc
tests.
Results
Adjusting for age, body mass index, and comorbidity, the intervention group
improved HF total (p=.002) and physical (p<.001) QOL scores at 3 months with
retention of improvements at 6 months, improved emotional QOL scores compared to control
at 3 months (p=.04), and improved health status ratings (p=.04) at 6
Months compared to baseline. The intervention group improved 6MWT distance (924 feet vs
952 feet, p=. 03) while control declined (834 vs 775 feet) (F1,
63=6.86, p=.01). The intervention group increased self-reported PA
between baseline and 6M (p=.01).
Conclusions
An integrated HF and DM self-care intervention improved perceived HF and
general QOL but not DM QOL. Improved physical functioning and self-reported PA were also
observed with the integrated self-care intervention. Further study of the HF and DM
integrated self-care intervention on other outcomes such as hospitalization and cost is
warranted.