Partner interfering behaviors affecting cancer quality of life

Impact of caregivers' negative response to cancer on long-term survivors' quality of life

Cancer survivors' quality of life (QoL) is consistently shown to be positively impacted by social support from family and friends, including informal caregivers. In contrast, a loved one's negative response to cancer can diminish survivors' QoL, and these negative responses can be more impactful than supportive behaviors. Nonetheless, negative caregiver response has not been extensively researched, and few studies have explored the potential interaction of negative caregiver response and perceived social support on survivors' QoL. Therefore, we examined direct effects of perceived negative caregiver response, and the potential moderating role of social support, on QoL in a population-based sample of cancer survivors (N = 7543) using generalized linear models. Findings indicate that survivors who rated their caregiver's response to their cancer diagnosis more negatively reported worse physical and mental health, even up to 10 years after their initial cancer diagnosis. Perceived social support was not significantly associated with physical health, but it was positively associated with mental health. However, social support was not shown to moderate the relationship between negative caregiver response and mental health. Findings suggest that positive support from others within a survivor's social network may not be enough to attenuate the negative effects of their primary caregiver's unsupportive behaviors. Accordingly, cancer survivorship research and practice must consider the critical role that negative caregiver responses have on survivors' QoL and develop strategies that focus on the survivor-caregiver dynamic.

Longitudinal associations between coping strategies, locus of control and health-related quality of life in patients with breast cancer or melanoma

PURPOSE

A diagnosis of breast cancer or melanoma is a traumatic life event that patients have to face. However, their locus-of-control (LOC) beliefs and coping strategies as well as the associations with health-related quality of life (HRQoL) changes over time are still not well known and rarely compared by cancer site.

METHODS

The objective of this longitudinal study was to assess the association of LOC (Cancer Locus-of-Control Scale) and coping (Brief Cope) changes, with change in HRQoL (EORTC QLQ-C30) over time in newly diagnosed breast cancer and melanoma patients at 1, 6, 12, and 24 month post-diagnosis. Mixed models were used to compare LOC and coping longitudinal changes as well as their associations with HRQoL changes in early-stage breast cancer and melanoma patients.

RESULTS

Overall, 215 breast cancer and 78 melanoma patients participated in the study. At baseline, HRQoL levels were often higher for breast cancer compared to melanoma patients. For breast cancer and melanoma patients, negative coping strategies and perceived control over the course of illness were negatively and positively associated with HRQoL changes, respectively. For breast cancer patients only, emotional coping and internal causal attribution were negatively associated with HRQoL changes. For both cancer sites, living with a partner correlated with worse HRQoL.

CONCLUSIONS

Understanding coping strategies and LOC beliefs used by patients soon after their cancer diagnosis and over the course of illness can help identifying psychological and supportive care to modify maladaptive thoughts and beliefs and promote more adaptive behaviors to ultimately improve patients' well-being and HRQoL.

Chronic Stress in Vocational and Intimate Partner Domains as Predictors of Depressive Symptoms After Breast Cancer Diagnosis

BACKGROUND

After cancer diagnosis, depressive symptoms are elevated on average and decline over time, but substantial variability is apparent. Few studies have examined to what extent chronic stress in distinct life domains affects depressive symptoms.

PURPOSE

Chronic stress in vocational and intimate partner life domains, and their interaction, were tested as predictors of depressive symptoms after breast cancer diagnosis.

METHODS

Women (N = 460) completed validated interviews regarding chronic stress in specific life domains shortly after diagnosis and a measure of depressive symptoms every 6 weeks for 6 months.

RESULTS

In latent growth curve modeling analyses, greater chronic stress in work (b = 2.90; p < .001) and intimate partner domains (b = 1.38, p = .02) was associated with higher depressive symptoms at study entry (intercept), and greater work stress predicted faster recovery from depressive symptoms over time (b = -0.10; p = .01). The two domains of chronic stress also interacted significantly on depressive symptoms at study entry (b = -1.54; p < .02) and over time (b = 0.14; p < .001). Greater work stress was associated with higher depressive symptoms at study entry regardless of intimate partner stress, but greater intimate partner stress was associated with higher depressive symptoms when work stress was low. The decline over 6 months in initially elevated depressive symptoms predicted by high work stress was significantly steeper when intimate partner stress was low.

CONCLUSIONS

Targeting interventions to recently diagnosed breast cancer patients living with chronically stressful vocational and intimate partner life circumstances could be worthwhile.

Intimate partner violence and women's cancer quality of life

PURPOSE

Because intimate partner violence (IPV) may disproportionately impact women's quality of life (QOL) when undergoing cancer treatment, women experiencing IPV were hypothesized to have (a) more symptoms of depression or stress and (b) lower QOL as measured with the Functional Assessment of Cancer Therapy (FACT-B) and Functional Assessment of Chronic Illness Therapy-Spiritual Well-being (FACIT-SP) Scales relative to those never experiencing IPV.

METHODS

Women, aged 18-79, who were included in one of two state cancer registries from 2009 to 2015 with a recent incident, primary, invasive biopsy-confirmed cancer diagnosis were recruited and asked to complete a phone interview, within 12 months of diagnosis. This interview measured IPV by timing (current and past) and type (physical, sexual, psychological), socio-demographics, and health status. Cancer registries provided consenting women's cancer stage, site, date of diagnosis, and age.

RESULTS

In this large cohort of 3,278 women who completed a phone interview, 1,221 (37.3%) disclosed lifetime IPV (10.6% sexual, 24.5% physical, and 33.6% psychological IPV). Experiencing IPV (particularly current IPV) was associated with poorer cancer-related QOL defined as having more symptoms of depression and stress after cancer diagnosis and lower FACIT-SP and FACT scores than women not experiencing IPV and controlling for confounders including demographic factors, cancer stage, site, and number of comorbid conditions. Current IPV was more strongly associated with poorer QOL. When compared with those experiencing past IPV (and no IPV), women with cancer who experienced current IPV had significantly higher depression and stress symptoms scores and lower FACIT-SP and FACT-G scores indicating poorer QOL for all domains. While IPV was not associated with being diagnosed at a later cancer stage, current IPV was significantly associated with having more than one comorbid physical conditions at interview (adjusted rate ratio = 1.35; 95% confidence interval 1.19-1.54) and particularly for women diagnosed with cancer when <55 years of age.

CONCLUSIONS

Current and past IPV were associated with poorer mental and physical health functioning among women recently diagnosed with cancer. Including clinical IPV screening may improve women's cancer-related QOL.

Partner interfering behaviors affecting cancer quality of life

Objective

Because partners are an important and unpaid resource in cancer care, understanding how destructive, controlling or interfering partner behaviors influence women's cancer care may be particularly relevant for health care providers seeking to provide cancer care and enhance recovery. Using a new measure of partner interfering behaviors in cancer care (PIB‐C), we investigated whether women with a recent cancer diagnosis who additionally endorsed any PIB‐C would report (a) more symptoms of depression and stress, and (b) lower Functional Assessment of Cancer Therapy (FACT‐G) and lower Functional Assessment of Chronic Illness Therapy‐Spiritual Well‐being (FACIT‐SP) scale scores indicating poorer quality of life (QOL).

Methods

Women aged 18–79 included in cancer registries as having an incident, primary, biopsy‐confirmed cancer in the past 12 months were eligible for this study. Consenting women completed a phone interview 9–12 months following cancer diagnosis between 2009 and 2015. Interviews provided data to measure outcomes (perceived stress and depressive symptoms, FACIT‐SP and FACT‐G scores), partner supportive and interfering behaviors, and other potentially confounding factors.

Results

Of the 2376 women in a relationship at cancer diagnosis, 14.7% endorsed one or more of 14 PIB‐C items. Women endorsing any PIB‐C item reported more symptoms of depression and stress and lower FACT‐G and FACIT‐SP scores than partnered women reporting no PIB‐C even when controlling for partner supportive behaviors and lifetime intimate partner violence. Increasing PIB‐C scores were also correlated, in a dose–response pattern, with these same outcomes.

Conclusions

Partner interfering behaviors during cancer care impact patients' QOL across multiple domains. © 2016 The Authors. Psycho‐Oncology Published by John Wiley & Sons Ltd.