||5R21CA245687-02 Interpret this number
||University Of Tx Md Anderson Can Ctr
||One Plus One Can Be Greater Than Two: Ecological Momentary Assessment for Black Prostate Cancer Survivors and Partners
Prostate cancer (PCa) is the most frequently diagnosed cancer among American men. PCa has the largest racial
disparities of any cancer in which African Americans (AAs) have the highest PCa burden. Although health
behaviors such as physical activity, low sedentary behavior, and healthy eating can reduce morbidity and
mortality among PCa survivors, AA cancer survivors do not meet recommended levels of health behaviors and
report poorer health behaviors than others. As romantic partners are often reported as a primary source of
support for AA PCa survivors, integrating partners into AA PCa survivorship care and broadening the focus of
behavioral interventions from the individual (survival) to the survivor-partner dyad may make health behaviors
more easily adopted and potentially maintained. Despite the importance and novelty of targeting the survivor-
partner dyad as a single unit of care, to date, no evidence exists that dyadic lifestyle interventions are superior
to individual-only interventions. We argue that this result is partly due to the fact that these dyadic lifestyle
interventions were simply adding partners in the existing individual-only interventions and did not take on a truly
dyadic perspective. Before implementing another dyadic lifestyle intervention, micro-level investigations of
interactions between survivors and partners is necessary to pinpoint how AA PCa survivors and partners
facilitate or hinder each other's HBs in their natural, everyday lives. Dyadic coping indicates that couples respond
to stressors as interpersonal units. It includes supportive/unsupportive (e.g., providing practical help, showing
disinterest), delegate (e.g., taking on things that the partner normally does), negative (e.g., mutual avoidance),
and common dyadic coping (e.g., joint problem solving). Thus, dyadic coping goes beyond the exchange of
social support. To date, virtually no studies have tested the impacts of dyadic coping on HBs among AA survivors
and partners. The objective of the present study is to fill these gaps using ecological momentary assessment to
eventually develop more effective lifestyle interventions for AA PCa survivors and partners. A total of 120 dyads
(i.e., 240 individuals) who are AA adult survivors diagnosed with non-metastatic PCa and their romantic partners
will be asked to complete four assessments per day for 14 consecutive days on a smartphone. During each
assessment, participants will be asked to complete a brief survey regarding their health behaviors, contexts of
health behaviors, stress, and dyadic coping. Physical activity and sedentary behavior will be assessed via
accelerometer. At completion of this study we expect to achieve the following milestones: 1) candidate dyadic
coping as a determinant of behavioral change of both survivors and partners, 2) identify critical time points of
intervention delivery, and 3) determine intervention characteristics. The proposed study along with our on-going
pilot study of AA PCa survivors and their partners will inform the rigorous development of a theory-based dyadic
lifestyle intervention in a vulnerable survivorship population with the ultimate goal to improve overall survival and
reduce cancer incidence.
Study protocol: One plus one can be greater than two-Ecological momentary assessment for Black prostate cancer survivors and partners.
, Milbury K.
, Liao Y.
, Pettaway C.A.
, Gregg J.R.
, Li Y.
, McNeill L.H.
PloS one, 2021; 16(8), p. e0255614.