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Support Care Cancer. 2015 Jul;23(7):1907-16. doi: 10.1007/s00520-014-2554-z. Epub 2014 Dec 10.

Participation in questionnaire studies among couples affected by breast cancer.

Author information

1
National Research Center of Cancer Rehabilitation, Research Unit of General Practice, Institute of Public Health, University of Southern Denmark, J.B. Winsløws Vej 9A, 5000, Odense, Denmark, hhbentsen@health.sdu.dk.

Abstract

OBJECTIVE:

Participation bias may be a problem in couple-based psychosocial studies. Therefore, it is important to investigate the characteristics associated with participation. The aim of this study was to analyze whether participation in a longitudinal psychosocial questionnaire study among couples affected by breast cancer was associated with socioeconomic, breast cancer-specific, and other health-related characteristics of the patients and partners.

METHODS:

The analyzes are based on 2254 couples who were invited to participate in a nationwide survey on psychosocial adjustment among couples dealing with breast cancer. Participating couples (N = 792) were compared with non-participating couples (N = 1462) with regard to socioeconomic and health-related characteristics obtained from nationwide clinical and administrative registers.

RESULTS:

Associations were seen between various socioeconomic variables and couple participation. The patient characteristics older age (OR = 0.15 [95% CI = 0.07-0.55]), low education (OR = 1.95 [95% CI = 1.46-2.68]), disability pension (OR = 0.59 [95% CI = 0.39-0.55]), or non-western ethnicity (OR = 0.36 [95% CI = 0.15-0.82]) reduced couple participation. The partner characteristics older age (OR = 0.23 [95% CI = 0.15-0.43]), low education (OR = 1.67 [95% CI = 1.25-2.22]), receiving disability pension (OR = 0.46 [95% CI = 0.25-0.82]), non-western ethnicity (OR = 0.17 [95% CI = 0.06-0.49]), or high morbidity (OR = 0.76 [95% CI = 0.60-0.96]) also reduced couple participation. Furthermore, couples with low income (OR = 1.49 [95% CI = 1.16-1.95]) had reduced participation. No associations were found between couple participation and breast cancer-related variables.

CONCLUSIONS:

Socioeconomic characteristics of patients and partners, and morbidity of partners may influence participation in couple-based psychosocial breast cancer research. Breast cancer-related characteristics do not seem to influence participation.

PMID:
25487844
DOI:
10.1007/s00520-014-2554-z
[Indexed for MEDLINE]

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