The mediating role of health behaviors in the association between depression, anxiety and cancer incidence: an individual participant data meta-analysis.

BACKGROUND: Although behavioral mechanisms in the association among depression, anxiety, and cancer are plausible, few studies have empirically studied mediation by health behaviors. We aimed to examine the mediating role of several health behaviors in the associations among depression, anxiety, and the incidence of various cancer types (overall, breast, prostate, lung, colorectal, smoking-related, and alcohol-related cancers). METHODS: Two-stage individual participant data meta-analyses were performed based on 18 cohorts within the Psychosocial Factors and Cancer Incidence consortium that had a measure of depression or anxiety (N = 319 613, cancer incidence = 25 803). Health behaviors included smoking, physical inactivity, alcohol use, body mass index (BMI), sedentary behavior, and sleep duration and quality. In stage one, path-specific regression estimates were obtained in each cohort. In stage two, cohort-specific estimates were pooled using random-effects multivariate meta-analysis, and natural indirect effects (i.e. mediating effects) were calculated as hazard ratios (HRs). RESULTS: Smoking (HRs range 1.04-1.10) and physical inactivity (HRs range 1.01-1.02) significantly mediated the associations among depression, anxiety, and lung cancer. Smoking was also a mediator for smoking-related cancers (HRs range 1.03-1.06). There was mediation by health behaviors, especially smoking, physical inactivity, alcohol use, and a higher BMI, in the associations among depression, anxiety, and overall cancer or other types of cancer, but effects were small (HRs generally below 1.01). CONCLUSIONS: Smoking constitutes a mediating pathway linking depression and anxiety to lung cancer and smoking-related cancers. Our findings underline the importance of smoking cessation interventions for persons with depression or anxiety.

Psychosocial factors, health behaviors and risk of cancer incidence: Testing interaction and effect modification in an individual participant data meta-analysis.

Depression, anxiety and other psychosocial factors are hypothesized to be involved in cancer development. We examined whether psychosocial factors interact with or modify the effects of health behaviors, such as smoking and alcohol use, in relation to cancer incidence. Two-stage individual participant data meta-analyses were performed based on 22 cohorts of the PSYchosocial factors and CAncer (PSY-CA) study. We examined nine psychosocial factors (depression diagnosis, depression symptoms, anxiety diagnosis, anxiety symptoms, perceived social support, loss events, general distress, neuroticism, relationship status), seven health behaviors/behavior-related factors (smoking, alcohol use, physical activity, body mass index, sedentary behavior, sleep quality, sleep duration) and seven cancer outcomes (overall cancer, smoking-related, alcohol-related, breast, lung, prostate, colorectal). Effects of the psychosocial factor, health behavior and their product term on cancer incidence were estimated using Cox regression. We pooled cohort-specific estimates using multivariate random-effects meta-analyses. Additive and multiplicative interaction/effect modification was examined. This study involved 437,827 participants, 36,961 incident cancer diagnoses, and 4,749,481 person years of follow-up. Out of 744 combinations of psychosocial factors, health behaviors, and cancer outcomes, we found no evidence of interaction. Effect modification was found for some combinations, but there were no clear patterns for any particular factors or outcomes involved. In this first large study to systematically examine potential interaction and effect modification, we found no evidence for psychosocial factors to interact with or modify health behaviors in relation to cancer incidence. The behavioral risk profile for cancer incidence is similar in people with and without psychosocial stress.

Depression, anxiety, and the risk of cancer: An individual participant data meta-analysis.

BACKGROUND: Depression and anxiety have long been hypothesized to be related to an increased cancer risk. Despite the great amount of research that has been conducted, findings are inconclusive. To provide a stronger basis for addressing the associations between depression, anxiety, and the incidence of various cancer types (overall, breast, lung, prostate, colorectal, alcohol-related, and smoking-related cancers), individual participant data (IPD) meta-analyses were performed within the Psychosocial Factors and Cancer Incidence (PSY-CA) consortium. METHODS: The PSY-CA consortium includes data from 18 cohorts with measures of depression or anxiety (up to N = 319,613; cancer incidences, 25,803; person-years of follow-up, 3,254,714). Both symptoms and a diagnosis of depression and anxiety were examined as predictors of future cancer risk. Two-stage IPD meta-analyses were run, first by using Cox regression models in each cohort (stage 1), and then by aggregating the results in random-effects meta-analyses (stage 2). RESULTS: No associations were found between depression or anxiety and overall, breast, prostate, colorectal, and alcohol-related cancers. Depression and anxiety (symptoms and diagnoses) were associated with the incidence of lung cancer and smoking-related cancers (hazard ratios [HRs], 1.06-1.60). However, these associations were substantially attenuated when additionally adjusting for known risk factors including smoking, alcohol use, and body mass index (HRs, 1.04-1.23). CONCLUSIONS: Depression and anxiety are not related to increased risk for most cancer outcomes, except for lung and smoking-related cancers. This study shows that key covariates are likely to explain the relationship between depression, anxiety, and lung and smoking-related cancers. PREREGISTRATION NUMBER: https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=157677.

Trajectories of fatigue in cancer patients during psychological care.

OBJECTIVE: Psycho-oncological institutions offer specialized care for cancer patients. Little is known how this care might impact fatigue. This study aimed to identify fatigue trajectories during psychological care, examined factors distinguishing these trajectories and predicted fatigue severity after nine months of psychological care. DESIGN: Naturalistic, longitudinal study of 238 cancer patients receiving psycho-oncological care in the Netherlands. Data were collected before initiation of psychological care (T1) and three (T2) and nine months (T3) afterwards. Latent class growth analysis, repeated measure analyses (RMA) and linear regression analysis were performed. MAIN OUTCOME MEASURES: Fatigue severity: Checklist Individual Strength. RESULTS: Three fatigue trajectories were identified: high- (30%), moderate- (62%) and low-level fatigue (8%). While statistically significant decreases in fatigue were found, this decrease was not clinically relevant. RMA showed main effects for time for fatigue trajectories on depression, anxiety, personal control and illness cognitions. Fatigue severity and physical symptoms at T1, but not demographic or clinical factors, were predictive of fatigue severity at T3. CONCLUSIONS: Fatigue is very common during psycho-oncological care, and notably not clinically improving. As symptoms of fatigue, depression, anxiety and physical symptoms often cluster, supplementary fatigue treatment should be considered when it is decided to treat other symptoms first.

Psychosocial factors and cancer incidence (PSY-CA): Protocol for individual participant data meta-analyses.

OBJECTIVES: Psychosocial factors have been hypothesized to increase the risk of cancer. This study aims (1) to test whether psychosocial factors (depression, anxiety, recent loss events, subjective social support, relationship status, general distress, and neuroticism) are associated with the incidence of any cancer (any, breast, lung, prostate, colorectal, smoking-related, and alcohol-related); (2) to test the interaction between psychosocial factors and factors related to cancer risk (smoking, alcohol use, weight, physical activity, sedentary behavior, sleep, age, sex, education, hormone replacement therapy, and menopausal status) with regard to the incidence of cancer; and (3) to test the mediating role of health behaviors (smoking, alcohol use, weight, physical activity, sedentary behavior, and sleep) in the relationship between psychosocial factors and the incidence of cancer. METHODS: The psychosocial factors and cancer incidence (PSY-CA) consortium was established involving experts in the field of (psycho-)oncology, methodology, and epidemiology. Using data collected in 18 cohorts (N = 617,355), a preplanned two-stage individual participant data (IPD) meta-analysis is proposed. Standardized analyses will be conducted on harmonized datasets for each cohort (stage 1), and meta-analyses will be performed on the risk estimates (stage 2). CONCLUSION: PSY-CA aims to elucidate the relationship between psychosocial factors and cancer risk by addressing several shortcomings of prior meta-analyses.

Spiritual care by nurses in curative oncology: a mixed-method study on patients' perspectives and experiences.

AIMS: Spirituality can be important in adjusting to the experience of cancer and its medical treatment. Since nurses have frequent contact with patients, they seem to have a unique role in providing spiritual care. Nurses consider spiritual care important; however, little is known about how patients in a curative setting experience and value spiritual care. Therefore, this study aimed to give insight into patients' experiences with and opinions about spiritual care as provided by nurses in curative cancer care. METHODS: This is a national, multicentre mixed-methods study, combining a quantitative approach using questionnaires (n = 62) and a qualitative analysis of semi-structured interviews (n = 61). Nonparametric tests were used for quantitative data, and qualitative data were analysed inductively. FINDINGS: Most patients rarely received spiritual care by nurses. If spiritual care was provided, it mainly consisted of noticing problems and referring to other professionals. This appeared to be dependent on certain 'triggers', such as age. Structural discussions on spirituality with a nurse were experienced rarely. This was explained by, among other factors, the hospital setting. Yet, the majority (79%) of patients found the attention to spirituality sufficient or very good. Furthermore, a majority (58%) viewed spiritual care as a nursing task: nurses should notice spiritual problems and refer to other professionals, though extensively discussing patients' spirituality was neither considered nurses' task nor capability. CONCLUSIONS: Attention to spiritual care in a curative setting, though not so much desired by most patients, should be pursued, because of its importance in performing person-centred nursing care and its positive impact on patients' health. By training nurses in offering spiritual care in proactive and 'nonactive' (accepting) ways, spiritual care could be structurally offered in clinical practice in personalised forms. Since younger and less spiritual patients are not much satisfied with spiritual care by nurses, they need special attention.

Does spirituality reduce the impact of somatic symptoms on distress in cancer patients? Cross-sectional and longitudinal findings.

RATIONALE: When diagnosed with cancer, a patient has to cope with stressors such as pain, fatigue, and the experience of life-threat that can cause great distress. Spirituality may be a resource for coping with these problems, thereby reducing distress. OBJECTIVE: Two questionnaire studies-the first a cross-sectional (Study 1; N = 216) and the second a one-year longitudinal (Study 2; N = 383)-investigated among Dutch cancer patients whether spirituality lessens the impact of pain, fatigue, and perceived life-threat on distress. METHOD: Data for Study 1 were gathered in 2006-2007 and for Study 2 in 2009-2010. Spirituality was measured with the Spiritual Attitude and Involvement List, which assesses six distinct but related aspects of spirituality. Linear regression analysis and marginal effect plots were applied. RESULTS: Limited evidence appeared for the hypothesis that spirituality reduces the impact of pain, fatigue, or perceived life threat on distress. Meaningfulness and acceptance might reduce a negative impact of increases in fatigue during the first year after the start of cancer treatment. In contrast, spirituality might enhance a negative impact of increases in perceived life threat. CONCLUSIONS: Processes of appraisal might explain the findings. Experiences of meaningfulness and acceptance might help to reappraise fatigue in a less threatening way, thereby reducing distress. Conversely, appraising the cancer as life-threatening might conflict with spiritual experiences of meaning, acceptance, and awe about life. Future studies should focus on the processes by which the various aspects of spirituality influence the adjustment of cancer patients and use other outcome variables than non-specific distress. Such studies may provide further clues as to how the spirituality of patients can be harnessed to help them adjust to a serious life event such as the occurrence of cancer.

Benefit finding trajectories in cancer patients receiving psychological care: Predictors and relations to depressive and anxiety symptoms.

OBJECTIVES: This study aimed to (1) identify benefit finding trajectories in cancer patients receiving psychological care; (2) examine associations of benefit finding trajectories with levels of and changes in psychological symptoms; and (3) examine whether socio-demographic and medical characteristics distinguished trajectories. DESIGN: Naturalistic longitudinal study design. METHODS: Participants were 241 cancer patients receiving psychological care at specialized psycho-oncological institutions in the Netherlands. Data were collected before starting psychological care, and three and 9 months thereafter. Latent class growth analysis was performed to identify benefit finding trajectories. RESULTS: Five benefit finding trajectories were identified: 'high level-stable' (8%), 'very low level-small increase' (16%), 'low level-small increase' (39%), 'low level-large increase' (9%), and 'moderate level-stable' (28%). People in distinct benefit finding trajectories reported significant differential courses of depression but not of anxiety symptoms. Compared with the other four trajectories, people in the 'low level-large increase' trajectory reported the largest decreases in depression over time. Perceptions of cancer prognosis distinguished these trajectories, such that people with a favourable prognosis were more likely to belong to the 'high level-stable' trajectory, while people perceiving an uncertain prognosis were more likely to belong to the 'low level-large increase' trajectory of benefit finding. CONCLUSIONS: Cancer patients showed distinct benefit finding trajectories during psychological care. A small proportion reporting a large increase in benefit finding were also most likely to show decreases in depressive symptoms over time. These findings suggest a relation between perceiving benefits from cancer experience and improved psychological functioning in cancer patients receiving psychological care. Statement of contribution What is already known on this subject? People vary in course of benefit finding (BF) after trauma, with some experiencing enhanced BF and others decreased BF. Empirical studies have identified subgroups of cancer patients with distinct BF trajectories. What does this study add? This is the first study showing that cancer patients followed different BF trajectories during psychological care. Only a small proportion experienced clinically meaningful increases in BF over time. More attention is needed for cancer patients with decreased BF, as they are at a higher risk of remaining depressed.

Spiritual care by nurses in curative cancer care: Protocol for a national, multicentre, mixed method study.

AIM: To gain insight into the quantity and quality of spiritual care provided by nurses in curative cancer care, from the perspectives of both patients and nurses. BACKGROUND: Cancer causes patients to suffer from diverse symptoms related to their illness. Nurses play an important role in the care for people with cancer. Next to paying attention to physical and psychosocial needs, caring for spiritual needs of patients also belongs to good nursing. Most of the research concerning spirituality and spiritual care in relation to cancer has focused on palliative care. DESIGN: A mixed methods design will be used in two sub-phases. First, we will conduct semi-structured interviews with 72-90 patients coming from nine hospitals. Subsequently, approximately the same number of nurses working on oncology wards of these hospitals will be interviewed. METHODS: We meticulously composed both interview guides so that only near the end of the interview explicit terms like spirituality and spiritual care are explicitly mentioned. Until that point, we will use other words to define the concepts. Next to the interviews, demographics, answers to some statements and several questionnaires will be gathered. Content analysis supported by DEDOOSE will be used to answer the research questions. DISCUSSION: The insight we will gain in this study enables us to compare experiences from the perspective of both patients and nurses. This can also provide us with suggestions for the improvement of nursing care for people with cancer who are treated with curative intent, a topic until now hardly addressed.

Co-morbidity of depression, anxiety and fatigue in cancer patients receiving psychological care.

OBJECTIVES: This study aimed to examine (1) subgroups of cancer patients with distinct co-morbidity patterns of depression, anxiety and fatigue; (2) how individuals transitioned between these patterns; and (3) whether socio-demographic, clinical and psychological care characteristics distinguished patients' transitions. METHOD: This naturalistic, longitudinal study focused on 241 cancer patients receiving psycho-oncological care in the Netherlands. Data were collected before initiation of psychological care (T1), 3 months (T2), and 9 months thereafter (T3). Latent transition analysis was performed examining research questions. RESULTS: Three distinct co-morbidity patterns were identified: class 1 ('mood disturbances and fatigue'), class 2 ('mood disturbances') and class 3 ('few symptoms of mood disturbances and fatigue'). Half of those in class 1 remained in this group from T1 to T3, a quarter transitioned to class 2 and another quarter to class 3. Baseline physical symptoms distinguished these transitions: those with more physical symptoms tended to remain stable. Half of patients in class 2 remained stable from T1 to T3, 46% moved into class 3 and 8% into class 1. Baseline physical symptoms and years after cancer diagnosis significantly distinguished these transitions: the 8% moving to class 1 had more physical symptoms and were longer after cancer diagnosis. Most patients in class 3 remained stable from T1 to T3, and predictors of transitions could not be examined. CONCLUSIONS: Three distinct co-morbidity patterns of depression, anxiety and fatigue were identified and exhibited different symptom courses longitudinally. Those with poor physical health tended to report elevated mood disturbances and fatigue during psychological care. Copyright © 2016 John Wiley & Sons, Ltd.

Existential Well-Being: Spirituality or Well-Being?

Measures of spirituality often contain the dimension existential well-being (EWB). However, EWB has been found to overlap with emotional and psychological well-being. Using the Spiritual Attitude and Involvement List (SAIL), we have further investigated the overlap between aspects of spirituality and of well-being among patients with cancer, by determining a) the divergent validity of the subscales of the SAIL compared with a well-being questionnaire and b) the differences in their associations to changes in pain and fatigue, and the occurrence of negative life events. Our findings suggest that a sense of trust that one is able to cope with difficulties of life belongs to the realm of well-being, instead of spirituality. Other aspects, such as a sense of meaning in life, seem more similar to spirituality than to well-being. These results can bring researchers a step further toward constructing "pure" spirituality and well-being measures, which will allow them to investigate the (causal) relationship between these constructs.

A critical analysis of scales to measure the attitude of nurses toward spiritual care and the frequency of spiritual nursing care activities.

Quantitative studies have assessed nurses' attitudes toward and frequency of spiritual care [SC] and which factors are of influence on this attitude and frequency. However, we had doubts about the construct validity of the scales used in these studies. Our objective was to evaluate scales measuring nursing SC. Articles about the development and psychometric evaluation of SC scales have been identified, using, Web of Science, and CINAHL, and evaluated with respect to the psychometric properties and item content of the scales. Item content was evaluated by each of the five authors with respect to the following questions: Does the item (1) reflect a general opinion about SC instead of a personal willingness to offer SC; (2) reflect general psychosocial care instead of specific SC; (3) focus solely on religious care; (4) contain the words 'spiritual' (care/needs/health/strengths, etc.); and (5) contain multiple propositions, or have an unclear meaning? We found eight scales. Psychometric analysis of these scales was often meager and the items of all but one scale suffered from two or more of the five problems described above. This leads us to conclude that many quantitative results in this area are based on findings with questionable scales. Suggestions for improvements are provided.

Characteristics of patients in routine psycho-oncological care, and changes in outcome variables during and after their treatment.

OBJECTIVE: The primary aim of this study was to determine the characteristics of clients and interventions in routine psycho-oncological care. The secondary aim was to determine the course of symptomatology during and after the psychological interventions. DESIGN: During a period of nine months, all clients who sought help in one of the seven psycho-oncological care institutes in the Netherlands were approached to participate in the present study (N = 483). Information was gathered with respect to demographic and medical characteristics, and type and duration of the interventions. In addition, depression, anxiety, well-being, quality of life, fatigue and daily function were determined before interventions and three and nine months later. RESULTS AND CONCLUSIONS: Compared to the Dutch cancer population, patients in psycho-oncological care were more often young and female. Compared to the general Dutch population, they were highly educated and were more likely to have a partner. Clinical levels of depression, anxiety and/or fatigue were found among 83% of the patients. After three months, only 23% had completed their intervention; this figure was 62% after nine months. Symptoms decreased significantly for all outcome variables. An importance difference with randomised controlled trials is the low session frequency and the long intervention time of patients in clinical care.

Subtypes of depression in cancer patients: an empirically driven approach.

PURPOSE: This study aimed to (1) identify subgroups of cancer patients with distinct subtypes of depression before the start of psychological care, (2) examine whether socio-demographic and medical characteristics distinguished these subtypes, and (3) examine whether people with distinct subtypes reported differential courses of depression during psychological care. METHOD: This naturalistic, longitudinal study included cancer patients who sought psychological care at specialized psycho-oncology institutions in the Netherlands. Data were collected before psychological care (T1) and three (T2) and nine (T3) months thereafter. Latent class analysis was performed to identify depression subtypes in 243 patients at T1. RESULTS: Before starting psychological care, three depressive subtypes were identified, differing in severity and type of symptoms. Class 1 (47%) with mild depression reported mostly concentration and sleep problems and fatigue. Class 2 (41%), with slightly higher levels of depression, reported similar concentration and sleep problems and fatigue as class 1, and additionally depressed mood. Class 3 (12%), with severe depression, reported mainly a depressed mood and, to a lesser extent but still elevated, fatigue and concentration problems. None of socio-demographic and medical characteristics significantly distinguished these subtypes. These subtypes significantly predicted the course of depression over time, with class 1 reporting moderate improvements, class 2 large improvements, and class 3 the largest improvements. CONCLUSIONS: Results indicate the presence of three subtypes of depression in cancer patients before starting psychological care. Our findings suggest that psychological interventions could be tailored to respond to the specific subtype of depression experienced by each individual.

The role of goal adjustment in symptoms of depression, anxiety and fatigue in cancer patients receiving psychosocial care: a longitudinal study.

OBJECTIVE: This study examined whether cancer patients reported increases in their goal adjustment capacities while receiving psychosocial care and whether these increases were related to changes in symptoms of depression, anxiety and fatigue. Goal adjustment was conceptualised as two independent capacities: goal disengagement (i.e. disengage from unattainable goals) and goal reengagement (i.e. reengage into new goals). DESIGN: This naturalistic, longitudinal study focused on 241 cancer patients receiving psychosocial care at one of the seven psycho-oncology institutions in the Netherlands. Data was collected before the start of psychosocial care (T1) and nine months thereafter (T2). Hierarchical regression analysis was used to examine the research questions. MAIN OUTCOME MEASURES: Goal adjustment, symptoms of depression, anxiety and fatigue. RESULTS: At group level, patients reported small increases in goal disengagement (d = .22) but no significant change in goal reengagement (d = .09). At an individual level, 34% of cancer patients reported an increase in goal disengagement and 30% reported an increase in goal reengagement. Increases in goal reengagement were significantly associated with decreases in both depressive and anxiety symptoms, but not to changes in fatigue. CONCLUSION: Findings indicate that particularly improvements in goal reengagement are beneficial for cancer patients' psychological functioning.

Trajectories of personal control in cancer patients receiving psychological care.

OBJECTIVE: This study aimed to (1) identify subgroups of cancer patients with distinct personal control trajectories during psychological care, (2) examine whether socio-demographic, clinical, and psychological care characteristics could distinguish trajectories, and (3) examine differential patterns of psychological symptoms between trajectories. METHODS: This naturalistic study focused on 241 cancer patients receiving psychological care at psycho-oncology institutions. Data were collected before the initiation of psychological care, and 3 and 9 months thereafter. Latent class growth analysis was applied to identify personal control trajectories. RESULTS: Three personal control trajectories were identified: enduring improvement (41%), temporary improvement (50%), and deterioration (9%). Education and baseline physical symptoms distinguished these trajectories. In the whole group, improvements in personal control were associated with improvements in psychological symptoms. Patients at distinct trajectories reported different levels of psychological symptoms, but did not differ in their courses of psychological symptoms. Patients in the enduring and temporary control improvement groups experienced significant psychological symptoms reductions over time, whereas patients in the control deterioration group maintained high psychological symptoms. CONCLUSIONS: Improvements in personal control seem to depend on initial control level: those who start with the highest control levels show subsequent improvements, whereas those with the lowest control levels show subsequent deterioration.

How Spirituality Helps Cancer Patients with the Adjustment to their Disease.

It has been suggested that spirituality is associated with higher well-being, because it offers social support, improves the relationship with the partner, provides meaning, and reduces self-focus and worry. We performed a qualitative study among ten people with cancer, using the Consensual Qualitative Research method for the analysis of semi-structured interviews. Support was found for the mechanisms of meaning provision and of reduction of self-focus and worries. Participants also mentioned emotion-focused roles of spirituality: Feeling supported by a transcendental confidant, the expression of negative emotions (in prayer), acceptance, allowing feelings of misery, and viewing problems from a distance. There was no mention of a contribution of spirituality to adjustment through improved social support per se or a higher quality of the relationship with the partner. The results of the present study indicate that the role of spirituality in emotion regulation deserves attention in understanding how spirituality helps cancer patients to adjust to their disease.