Trajectories of illness intrusiveness domains following a diagnosis of breast cancer.

Sohl SJ, Levine B, Case LD, Danhauer SC, Avis NE
Health Psychol. 2014 33 (3): 232-41

PMID: 23668843 · PMCID: PMC3748205 · DOI:10.1037/a0032388

OBJECTIVE - To identify trajectories of illness intrusiveness over the first 2 years after a breast cancer diagnosis and describe associated patient and treatment characteristics. Illness intrusiveness, or how much an illness disrupts life domains, has been shown to be highly related to quality of life.

METHODS - Women recruited within 8 months of a breast cancer diagnosis (n = 653) completed questionnaires at baseline and 6, 12, and 18 months postbaseline. Group-based trajectory modeling was used to identify trajectories in three established domains of illness intrusiveness: instrumental, intimacy, and relationships and personal development. Bivariate analyses identified contextual, disease/treatment, psychological, and social characteristics of women in trajectory groups.

RESULTS - Forty-one percent of women fell into a trajectory of consistently low illness intrusiveness (Low) across all three domains. Other women varied such that some reported illness intrusiveness that decreased over time on at least one domain (9-34%), and others reported consistently high intrusiveness on at least one domain (11-17%). A fourth trajectory of increased illness intrusiveness emerged in the relationship and personal development domain (9%). Characteristics of women in the Low group were being older; being less likely to have children at home; and having stage I cancer, fewer symptoms, and better psychosocial status.

CONCLUSIONS - Women experienced different patterns of illness intrusiveness in the first 2 years after a diagnosis of breast cancer with a high percentage reporting Low intrusiveness. However, women differentially followed the other trajectory patterns by domain, suggesting that the effect of breast cancer on some women's lives may be specific to certain areas.

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MeSH Terms (13)

Activities of Daily Living Adult Aged Breast Neoplasms Female Follow-Up Studies Humans Interpersonal Relations Middle Aged Quality of Life Sexual Behavior Surveys and Questionnaires Time Factors

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