TY - JOUR
T1 - Reallocating time to sleep, sedentary, and active behaviours in non-Hodgkin lymphoma survivors
T2 - associations with patient-reported outcomes
AU - Vallance, Jeff K.
AU - Buman, Matthew P.
AU - Lynch, Brigid M.
AU - Boyle, Terry
N1 - Funding Information:
Jeff Vallance is supported by the Canada Research Chairs program and a Population Health Investigator Award from Alberta Innovates—Health Solutions. Brigid Lynch is supported by an Early Career Fellowship from the National Breast Cancer Foundation. Terry Boyle is supported by an Early Career Fellowship from the Australian National Health and Medical Research Council (#1072266), a Fellowship from the Canadian Institutes of Health Research (#300068), a Postdoctoral Fellowship from the Michael Smith Foundation for Health Research (#5553) and an Honorary Killam Postdoctoral Research Fellowship from Killam Trusts/The University of British Columbia. We would like to thank Emily Ransom for her assistance in data collection and study management and Ms. Jessica Occleston for her assistance in data processing. We also sincerely thank the people who took the time to participate in this study.
Funding Information:
This work was supported by a grant from Cancer Council Western Australia awarded to Terry Boyle.
Publisher Copyright:
© 2017, Springer-Verlag Berlin Heidelberg.
PY - 2017/5/1
Y1 - 2017/5/1
N2 - The purpose of this study was to examine potential effects of reallocating time between sleep, sedentary and active behaviours on fatigue symptoms and quality of life in a sample of non-Hodgkin lymphoma survivors. Non-Hodgkin lymphoma survivors identified from the Western Australian Cancer Registry (N = 149) (response rate = 36%; median age = 64 years) wore an Actigraph® GT3X+ accelerometer for 7 days and completed the Fatigue Scale, the Functional Assessment of Cancer Therapy-General and the Pittsburgh Sleep Quality Index. We used isotemporal substitution methods in linear regression models to examine the potential effects of reallocating time between sleep, sedentary and activity behaviours on fatigue and quality of life. Data collection was conducted in Western Australia in 2013. Significant differences were observed for fatigue symptoms when 30 min per day of bouted moderate-to-vigorous physical activity (10 min) was reallocated from 30 min per day of sleep (5.7 points, 95% CI = 1.8, 9.7), sedentary time bouts (20 min) (5.7 points, 95% CI = 1.6, 9.7), sedentary time non-bouts (5.1 points, 95% CI = 1.0, 9.3) or light intensity activity (5.5 points, 95% CI = 1.5, 9.5). Isotemporal substitution effects of reallocating sedentary time, sleep and light physical activity with bouted physical activity was significantly associated with fatigue, but not quality of life. Findings from the present study may aid in the development and delivery of health behaviour interventions that are more likely to influence the health outcome of interest.
AB - The purpose of this study was to examine potential effects of reallocating time between sleep, sedentary and active behaviours on fatigue symptoms and quality of life in a sample of non-Hodgkin lymphoma survivors. Non-Hodgkin lymphoma survivors identified from the Western Australian Cancer Registry (N = 149) (response rate = 36%; median age = 64 years) wore an Actigraph® GT3X+ accelerometer for 7 days and completed the Fatigue Scale, the Functional Assessment of Cancer Therapy-General and the Pittsburgh Sleep Quality Index. We used isotemporal substitution methods in linear regression models to examine the potential effects of reallocating time between sleep, sedentary and activity behaviours on fatigue and quality of life. Data collection was conducted in Western Australia in 2013. Significant differences were observed for fatigue symptoms when 30 min per day of bouted moderate-to-vigorous physical activity (10 min) was reallocated from 30 min per day of sleep (5.7 points, 95% CI = 1.8, 9.7), sedentary time bouts (20 min) (5.7 points, 95% CI = 1.6, 9.7), sedentary time non-bouts (5.1 points, 95% CI = 1.0, 9.3) or light intensity activity (5.5 points, 95% CI = 1.5, 9.5). Isotemporal substitution effects of reallocating sedentary time, sleep and light physical activity with bouted physical activity was significantly associated with fatigue, but not quality of life. Findings from the present study may aid in the development and delivery of health behaviour interventions that are more likely to influence the health outcome of interest.
KW - Isotemporal substation modelling
KW - Non-Hodgkin lymphoma
KW - Physical activity
KW - Sedentary time
UR - http://www.scopus.com/inward/record.url?scp=85012866263&partnerID=8YFLogxK
U2 - 10.1007/s00277-017-2942-9
DO - 10.1007/s00277-017-2942-9
M3 - Journal Article
C2 - 28197722
AN - SCOPUS:85012866263
SN - 0939-5555
VL - 96
SP - 749
EP - 755
JO - Annals of Hematology
JF - Annals of Hematology
IS - 5
ER -