The association between Type D personality and illness perceptions in colorectal cancer survivors: a study from the population-based PROFILES registry

Symptom perceptions in functional disorders, major health conditions, and healthy controls: A general population study

Background

The present study investigated differences in symptom perceptions between individuals with functional disorders (FD), major health conditions, and FDs + major health conditions, respectively, and a group of healthy individuals. Furthermore, it investigated the relevance of FDs among other health-related and psychological correlates of symptom perceptions in the framework of the Common Sense Model of Self-Regulation (CMS).

Method

This cross-sectional study used epidemiological data from the Danish Study of Functional Disorders part two (N = 7,459 participants, 54% female, 51.99 ± 13.4 years). Symptom perceptions were assessed using the Brief Illness Perception Questionnaire (B-IPQ) and compared between the four health condition groups. Multiple regression analyses were performed to examine associations between symptom perceptions, FDs, and other health-related and psychological correlates from the CMS framework.

Results

Individuals with FDs (n = 976) and those with FDs + major health conditions (n = 162) reported less favorable symptom perceptions compared to the other two groups, particularly regarding perceived consequences, timeline, and emotional representations (effect size range Cohen’s d = 0.12-0.66). The presence of a FD was significantly associated with all B-IPQ items, even in the context of 16 other relevant health-related and psychological correlates from the CMS framework, whereas symptom presence last year or last week was not.

Conclusion

In the general population, symptom perceptions seem to play a more salient role in FD than in individuals with well-defined physical illness. Symptom perceptions should therefore be targeted in both primary and secondary interventions for FDs.

Association between Type-D Personality and Affective (Anxiety, Depression, Post-traumatic Stress) Symptoms and Maladaptive Coping in Breast Cancer Patients: A Longitudinal Study

Background:

Type-D (distressed) personality has not been prospectively explored for its association with psychosocial distress symptoms in breast cancer patients.

Objective:

The objective of the study was to test the hypothesis that Type-D personality can be associated with psychosocial distress variables in cancer over a 2-point period (6 month-follow-up).

Aims:

The aim of the study was to analyze the role of Type-D personality in relation to anxiety, depression, post-traumatic stress symptoms, general distress, and maladaptive coping among cancer patients.

Methods:

145 breast cancer patients were assessed within 6 months from diagnosis (T0) and again 6 months later (T1). The Type-D personality Scale, the Hospital Anxiety and Depression Scale, Depression subscale (HAD-D), the Brief Symptom Inventory (BSI-18) Anxiety subscale, the Distress Thermometer (DT), the Post-traumatic Symptoms (PTS) Impact of Event Scale (IES), and the Mini Mental Adjustment to Cancer (Mini-MAC) Anxious Preoccupation and Hopelessness scales were individually administered at T0 and T1.

Results:

One-quarter of cancer patients met the criteria for Type-D personality, which was stable over the follow-up time. The two main constructs of Type-D personality, namely social inhibition (SI) and negative affectivity (NA), were related to anxiety, depression, PTS, BSI-general distress and maladaptive coping (Mini-MAC anxious preoccupation and hopelessness). In regression analysis, Type-D SI was the most significant factor associated with the above-mentioned psychosocial variables, both at T0 and T1.

Conclusion:

Likewise other medical disorders (especially cardiology), Type-D personality has been confirmed to be a construct significantly related to psychosocial distress conditions and maladaptive coping that are usually part of assessment and intervention in cancer care. More attention to personality issues is important in oncology.

Personality Factors in Colorectal Cancer: A Systematic Review

Background: The role of personality in cancer incidence and development has been studied for a long time. As colorectal cancer (CRC) is one of the most prevalent cancer types and linked with lifestyle habits, it is important to better understand its psychological correlates, in order to design a more specific prevention and intervention plan. The aim of this systematic review is to analyze all the studies investigating the role of personality in CRC incidence. Methods: All studies on CRC and personality up to November 2020 were scrutinized according to the Cochrane Collaboration and the PRISMA statements. Selected studies were additionally evaluated for the Risk of Bias according to the Newcastle-Ottawa Scale (NOS). Results: Eight studies met the inclusion criteria and were eventually included in this review. Two main constructs have been identified as potential contributors of CRC incidence: emotional regulation (anger) and relational style (egoism). Conclusion: Strong conclusions regarding the influence of personality traits on the incidence of CRC are not possible, because of the small number and the heterogeneity of the selected studies. Further research is needed to understand the complexity of personality and its role in the incidence of CRC and the interaction with other valuable risk factors.

Perceived social support in patients with endometrial or ovarian cancer: A secondary analysis from the ROGY care study

OBJECTIVE

Social support may reduce the amount of psychological distress and increase quality of life. This study assessed whether socio-demographic, personality, and clinical characteristics predict the level of perceived social support in patients with endometrial or ovarian cancer.

METHODS

Patients with endometrial or ovarian cancer who participated in the ROGY Care study and completed the Multidimensional Scale of Perceived Social Support(MSPSS) 12 months after inclusion were eligible for this study (n=238). Logistic regression analysis was conducted to determine the predictive value of socio-demographic characteristics, personality and clinical characteristics after initial treatment on the perceived level of social support after 12 months.

RESULTS

Of the 238 patients (mean age 64.8 ± 9.4 years), 139 patients had endometrial cancer (58%) and 99 patients had ovarian cancer (42%). One year after inclusion, the level of perceived social support was high in 79% of all patients (n=189). Patients experiencing low level of perceived social support (n=49) less often had a partner (69% versus 83% in patients with high level of perceived social support; p=0.029), had a higher education level (24% versus 15% respectively; p=0.013) and a distressed (type D) personality was more common (40% versus 16% respectively; p<0.001). In multivariable analysis, a type D personality, characterized by negative affect and social inhibition, was the only independent predictor of a low level of perceived social support (OR 2.96; 95% CI 1.37-6.37; p=0.006).

CONCLUSIONS

In patients with endometrial or ovarian cancer, the level of perceived social support is mainly associated with a distressed (type D) personality. Those patients can be at risk of experiencing less social support. Future research is needed to assess whether they might benefit from additional support during cancer diagnosis and treatment.

Representations of cancer recurrence risk, recurrence worry, and health-protective behaviours: an elaborated, systematic review

An expanded Common-Sense Model (CSM) contextualised to the self-regulation of cancer recurrence risk identifies risk representational attributes and recurrence worry as primary processes motivating protective behaviours in cancer survivors. A systematic review examined evidence for CSM hypotheses regarding how these processes influence diet and physical activity (PA) among survivors. A research agenda is outlined and used to evaluate the evidence base. Common databases were searched for eligible, peer-reviewed, English language reports, yielding 18 studies quantitatively testing hypothesised relationships among representations of prior cancer, recurrence risk representations, recurrence worry, and diet and PA. The findings provide promising, but mixed and limited evidence for some of the hypothesised associations of specific risk recurrence attributes with recurrence worry, and risk recurrence attributes and recurrence worry with diet and PA. Findings support the distinction of recurrence risk representations and illness representations of the prior cancer, with each showing different relationships with recurrence worry and behaviours. We discuss the status of the evidence base in relation to assessment, design, and analysis priorities and propose strategies that can yield more sensitive, rigorous tests of the CSM for cancer recurrence risk as applied to diet and PA.

Mediating effect of illness perception on the relationship between Type D personality and health behaviors among coronary artery disease patients

The aim of this study was to investigate the relationship between Type D personality and health behaviors of coronary artery disease patients and to determine the mediating effect of illness perception on this relationship. The participants were 142 coronary artery disease patients who underwent percutaneous coronary intervention in a university hospital in Korea. Type D personality, illness perception, and health behaviors were surveyed using structured questionnaires. The collected data were analyzed by a series of hierarchical multiple regressions. A total of 28.9 percent patients had Type D personality. Type D Patients were observed to have low illness perception and low health behaviors. There was a positive correlation between illness perception and health behaviors. The direct effect of Type D personality on health behaviors was significant (β = -.209, p = .013). However, the indirect effect of Type D personality on health behaviors via illness perception became low and non-significant (β = .007, p = .934). Based on the above results, it can be concluded that illness perception has a complete mediating effect on the relationship between Type D personality and health behaviors. The development of interventions that can improve illness perception is needed to improve health behaviors of Type D coronary artery disease patients.

"Still a Cancer Patient"-Associations of Cancer Identity With Patient-Reported Outcomes and Health Care Use Among Cancer Survivors

Background

The concept of cancer identity is gaining attention as more individuals are living with cancer as a chronic illness. Research is limited, and results suggest that a self-identity as “cancer patient” rather than a “cancer survivor” is associated with depression and lower health-related quality of life (HRQL). We aimed to identify factors associated with patient identity and investigate the associations between patient identity and treatment, health care use, psychosocial distress, and HRQL.

Methods

We used data from the population-based CAncEr Survivorship: A multi-Regional (CAESAR) study. Breast, colorectal, and prostate cancer survivors diagnosed during 1994–2004 completed a postal survey on patient identity, HRQL, psychological distress, and health care use in 2009–2011. We calculated odds ratios and the 95% confidence interval of having a patient identity. Analyses were adjusted for age, sex, education, and cancer stage, where appropriate.

Results

Of the 6057 respondents, colorectal cancer survivors (25%) were least likely to consider themselves patients, and prostate cancer survivors (36%) the most likely. Being male, younger age, comorbidity, higher cancer stage, and disease recurrence were associated with patient identity. Treatment was associated with patient identity, except among female colorectal cancer survivors. Having a patient identity was associated with higher health care use within the past 12 months. Survivors who still consider themselves patients were more likely to be depressed and reported significantly lower HRQL.

Conclusions

A significant proportion of cancer survivors still consider themselves patients five to 15 years postdiagnosis. Sensitivity to individuals’ self-identity should be considered when exploring their cancer experience.

Survivorship care plans have a negative impact on long-term quality of life and anxiety through more threatening illness perceptions in gynecological cancer patients: the ROGY care trial

Purpose

Prior results from the registration system oncological gynecology (ROGY) care trial showed that survivorship care plans (SCPs) increased threatening illness perceptions in gynecological cancer survivors, but it remained unclear whether this would result in poorer physical and psychosocial outcomes. The aim of the current study is to assess the direct and indirect effects of SCPs on health-related quality of life (HRQoL) and anxiety and depression, through illness perceptions.

Methods

Twelve hospitals in the South of the Netherlands were randomized to providing ‘SCP care’ or ‘usual care.’ Newly diagnosed endometrial and ovarian cancer patients completed questionnaires after initial treatment (endometrial, 221 [75%]; ovarian, 174 [71%]) and after 6, 12, and 24 months. SCPs were automatically generated after initial treatment by the oncology providers through the web-based ROGY. Illness perceptions were measured after initial treatment and HRQoL and anxiety and depression after 6, 12, and 24 months.

Results

Structural equation models showed that endometrial cancer patients who experienced more symptoms or concern due to the SCP reported worse social functioning (β = − 0.82; p = 0.01) and more fatigue, insomnia, pain, and anxiety (β = 0.58–0.86, p < 0.05) within 12 months after treatment. Ovarian cancer patients who had lower trust that the treatment would cure their disease due to the SCP reported worse emotional functioning 6 months after treatment (β = 0.27, p = 0.02).

Conclusions

Current results show that SCPs may have negative effects on HRQoL and anxiety in patients who experience more threatening illness perceptions due to the SCP. We should be aware of the potential negative consequences of SCPs.

Trial Registration clinicaltrials.gov Identifier: NCT01185626.

Modifiable correlates of illness perceptions in adults with chronic somatic conditions: A systematic review

When individuals become ill, they want to understand and give meaning to their illness. The interpretation of this illness experience, or illness perception, is influenced by a range of individual, contextual, and cultural factors. Some of these factors may be modifiable by nursing interventions. The purpose of this systematic review was to investigate which modifiable factors were correlated with illness perceptions across studies of adults with different chronic somatic diseases. Using search terms tailored to each of four electronic databases, studies retrieved were reviewed by two independent evaluators, and each relevant article was assessed for methodological quality. Results were standardized by calculating correlation coefficients. Fifteen papers on illness perceptions in a variety of chronic diseases met the inclusion criteria. All used standardized measures of illness perceptions. We identified five groups of modifiable correlates of illness perceptions: illness-related factors, psychosocial factors, medication beliefs, information provision and satisfaction with information received, and quality of care. Our findings add to the knowledge of modifiable factors correlated with illness perceptions, including the importance of illness-related factors and psychosocial factors such as anxiety and depression. Knowledge of these correlates can facilitate understanding of patients' illness perceptions and might be useful in tailoring patient education programs.

Type D personality in patients with upper extremity musculoskeletal illness: Internal consistency, structural validity and relationship to pain interference

OBJECTIVE

Type D personality - the joint tendency toward negative affectivity (NA) and social inhibition (SI) - is associated with greater symptom perception and negative health outcomes among various patient populations. We investigated Type D personality among patients with upper extremity musculoskeletal illness.

METHOD

In cross-sectional design, we estimated the prevalence of Type D personality in this population and explored the associations of two different Type D conceptualizations (i.e., categorical and dimensional as the NA×SI interaction) and the individual NA and SI traits with pain interference as well as structural-internal validity of DS14.

RESULTS

The categorical Type D personality and greater NA and SI were associated with pain interference above and beyond descriptive variables, but the interaction term between NA and SI was not. NA explained a larger proportion of the variance in pain interference than SI. DS14 showed a two-factor structure and high internal consistency in this sample.

CONCLUSIONS

The categorical Type D allows for identifying individuals who struggle with recovery from musculoskeletal injury. Although the dimensional conceptualization didn't prove to be associated with pain interference, NA and SI appear to have individual effects on pain interference, with most variance being accounted for by NA. Implications for clinical care are discussed.

Cancer survivorship: Advancing the concept in the context of colorectal cancer

PURPOSE

Previous conceptualizations of cancer survivorship have focused on heterogeneous cancer survivors, with little consideration of the validity of conclusions for homogeneous tumour groups. This paper aims to examine the concept of cancer survivorship in the context of colorectal cancer (CRC).

METHOD

Rodgers' (1989) Evolutionary Method of Concept Analysis guided this study. A systematic search of PUBMED, CINAHL, PsycINFO and The Cochrane Library was conducted in November 2016 to identify studies of CRC survivorship. The Braun and Clarke (2006) framework guided the analysis and interpretation of data extracted from eighty-five publications.

RESULTS

Similar to general populations of cancer survivors, CRC survivors experience survivorship as an individual, life-changing process, punctuated by uncertainty and a duality of positive and negative outcomes affecting quality of life. However, CRC survivors experience specific concerns arising from the management of their disease. The concept of cancer survivorship has evolved over the past decade as the importance of navigating the healthcare system and its resources, and the constellation of met and unmet needs of cancer survivors are realised.

CONCLUSIONS

The results highlight core similarities between survivorship in the context of CRC and other tumour groups, but underlines issues specific to CRC survivorship. Communication and support are key issues in survivorship care which may detrimentally affect CRC survivors' well-being if they are inadequately addressed. Healthcare professionals (HCP's) therefore have a duty to ensure cancer survivors' health, information and supportive care needs are met in the aftermath of treatment.

A Determination of Hopelessness and the Perception of Illness in Cancer

This study was performed with the objective of determining hopelessness and perception of illness in cancer patients. This was a descriptive and regressional study. The study was performed between January and June 2014 on 105 outpatients at the oncology clinic of Manisa Government Hospital in Turkey’s western. A patient information form, the Beck Hopelessness Scale, and the illness perception questionnaire were used to collect data, and data analysis was performed using the program Statistical Package for Social Sciences 15.0. Percentages, t test, Kruskal–Wallis, one-way analysis of variance, and Pearson correlation were used in the evaluation of research data. The hopelessness levels of cancer patients participating in the study were at a medium level. As patients’ scores on the hopelessness scale and its subscales increase, so their illness perception scores also increase. The hopelessness levels of patients whose illness perception was good were lower; that is, as patients’ hopelessness levels fell, their illness perceptions and view of their illness were affected in a positive way.

A Type A and Type D Combined Personality Typology in Essential Hypertension and Acute Coronary Syndrome Patients: Associations with Demographic, Psychological, Clinical, and Lifestyle Indicators

Many studies have focused on Type A and Type D personality types in the context of cardiovascular diseases (CVDs), but nothing is known about how these personality types combine to create new profiles. The present study aimed to develop a typology of Type A and Type D personality in two groups of patients affected by and at risk for coronary disease. The study involved 711 patients: 51.6% with acute coronary syndrome, 48.4% with essential hypertension (mean age = 56.4 years; SD = 9.7 years; 70.7% men). Cluster analysis was applied. External variables, such as socio-demographic, psychological, lifestyle, and clinical parameters, were assessed. Six groups, each with its own unique combined personality profile scores, were identified: Type D, Type A-Negatively Affected, Not Type A-Negatively Affected, Socially Inhibited-Positively Affected, Not Socially Inhibited, and Not Type A-Not Type D. The Type A-Negatively Affected cluster and, to a lesser extent, the Type D cluster, displayed the worst profile: namely higher total cardiovascular risk index, physical inactivity, higher anxiety and depression, and lower self-esteem, optimism, and health status. Identifying combined personality profiles is important in clinical research and practice in cardiovascular diseases. Practical implications are discussed.

Type D personality, illness perception, social support and quality of life in continuous ambulatory peritoneal dialysis patients

The previous studies reported Type D was associated with poor quality of life (QoL), increased psychological distress, and impaired health status in cardiac patients. The aim of this study is to assess the relationships among Type D personality, illness perception, social support, and investigate the impact of Type D personality on QoL in continuous ambulatory peritoneal dialysis (CAPD) patients. Type D personality was assessed by the Chinese 14-item Type D Personality Scale (DS14). Illness perceptions were assessed using the Chinese version of the Brief Illness Perception Questionnaire (B-IPQ). Social support status was assessed by the well-validated social support rating scale (SSRS). Patients' QoL was assessed by using Medical Outcomes Short Form 36 (SF-36), respectively. The Type Ds had significantly lower objective support score (8.18 ± 2.56 vs. 9.67 ± 3.28, p = 0.0001), subjective support score (6.71 ± 2.0 vs. 7.62 ± 1.93, p = 0.0001) and utilization of social support score (6.76 ± 2.0 vs. 7.61 ± 1.94, p = 0.0001) than that of the non-type Ds. Type Ds believed their illness had much more serious consequences (7.67 ± 2.64 vs. 6.27 ± 3.45, p < 0.001), and experience much more symptoms that they attributed to their illness (6.65 ± 2.54 vs. 7.31 ± 2.36, p = 0.023). Significant differences were found between Type Ds and non-Type Ds in PCS (40.53 ± 6.42 vs. 48.54 ± 6.21 p < 0.001) and MCS (41.7 1 ± 10.20 vs. 46.35 ± 9.31, p = 0.012). The correlation analysis demonstrated that Type D was negatively associated with physical component score (PCS) (r = -0.29, p < 0.01), mental component score (MCS) (r = -0.31, p < 0.01), and social support (r = -0.24, p < 0.001). Using multiple linear regression analysis, we found that Type D personality was independently associated with PCS (β = -0.32, p < 0.001) and MCS (β = -0.24, p < 0.001). Type D personality was a predictor of poor QoL in CAPD patients. The current study is the first to identify a strong association among Type D, illness perceptions, social support and QoL in CAPD patients. The worse illness perceptions and lower social support level therefore represent possible mechanisms to explain the link between Type D and poor QoL in CAPD patients.

Illness perceptions are associated with mortality among 1552 colorectal cancer survivors: a study from the population-based PROFILES registry

Purpose

Cancer survivors construct perceptions of illness as a (mal)adaptive mechanism. These perceptions motivate/drive subsequent self-management behaviors toward symptoms and treatment that influence health outcomes. Negative illness perceptions have been associated with increased mortality in other chronically ill groups. However, this association is under-researched in cancer survivors. We aimed to explore the association between illness perceptions and mortality in stage I–III progression-free colorectal cancer (CRC) survivors.

Methods

We used data from the population-based Patient Reported Outcomes Following Initial treatment and Long Term Evaluation of Survivorship (PROFILES) registry of two CRC survivorship studies conducted in 2009 and 2010. We accessed clinical data from the Netherlands Cancer Registry, and mortality data from municipal personal records database. Follow-up was until 31 December 2014. Survivors (n = 1552) completed the Brief Illness Perception Questionnaire. Cox proportional hazard models estimated the association between illness perceptions and mortality.

Results

Negative illness perceptions on consequences (adjusted hazard ratio (HR_adj) 1.60, 95 % confidence interval (CI) 1.14–2.25) and emotion (HR_adj 1.65, 95 % CI 1.18–2.31) were associated with higher mortality, after adjusting for demographic, clinical, and lifestyle factors. Smoking and inadequate physical activity were independently associated with mortality for all Brief Illness Perception Questionnaire (BIPQ) dimensions.

Conclusions

Survivors’ perceptions of their illness are important as these perceptions may influence health outcomes during survivorship period. Clinical practice needs to identify and address maladaptive illness perceptions to support more adaptive self-management behaviors and enhance survivorship.

Implications for cancer survivors

Cancer survivors may benefit from interventions that address potentially maladaptive perceptions and encourage more adaptive self-management behaviors.

Response rates for patient-reported outcomes using web-based versus paper questionnaires: comparison of two invitational methods in older colorectal cancer patients

BACKGROUND

Improving questionnaire response rates is an everlasting issue for research. Today, the Internet can easily be used to collect data quickly. However, collecting data on the Internet can lead to biased samples because not everyone is able to access or use the Internet. The older population, for example, is much less likely to use the Internet. The Patient-Reported Outcomes Following Initial Treatment and Long-Term Evaluation of Survivorship (PROFILES) registry offers a platform to collect Web-based and paper questionnaires and to try different measures to improve response rates.

OBJECTIVE

In this study, our aim was to study the influence of two methods of invitation on the response rate. Our second aim was to examine the preference of questionnaire mode of administration (paper or Web-based) for the older patient in particular.

METHODS

To test these two invitational methods, 3406 colorectal cancer patients between ages 18 and 85 years received an invitation containing an access code for the Web-based questionnaire. They could also request a paper questionnaire with an included reply card (paper-optional group). In contrast, 179 randomly selected colorectal cancer patients received a paper questionnaire with the invitation (paper-included group). They could also choose to fill out the Web-based questionnaire with the included access code.

RESULTS

Response rates did not differ between the paper-optional and the paper-included groups (73.14%, 2491/3406 and 74.9%, 134/179, P=.57). In the paper-optional group, online response was significantly higher when compared to the paper-included group (41.23%, 1027/2491 vs 12.7%, 17/134, P<.001). The majority of online respondents responded after the first invitation (95.33%, 979/1027), which was significantly higher than the paper respondents (52.19%, 764/1464, P<.001). Respondents aged 70 years and older chose to fill out a paper questionnaire more often (71.0%, 677/954). In the oldest age group (≥80 years), 18.2% (61/336) of the respondents filled out a Web-based questionnaire.

CONCLUSIONS

The lack of difference in response rates between invitation modes implies that researchers can leave out a paper questionnaire at invitation without lowering response rates. It may be preferable not to include a paper questionnaire because more respondents then will fill out a Web-based questionnaire, which will lead to faster available data. However, due to respondent preference, it is not likely that paper questionnaires can be left out completely in the near future.

Type D personality, suboptimal health behaviors and emotional distress in adults with diabetes: results from Diabetes MILES-The Netherlands

AIMS

Type D personality - defined as high negative affectivity (NA) and high social inhibition (SI) - has been associated with adverse cardiovascular prognosis. We explored the differential associations of Type D personality and its constituent components with health behaviors, emotional distress and standard biomedical risk factors as potential risk mechanisms in adults with diabetes.

METHODS

3314 Dutch adults with self-reported type 1 or 2 diabetes completed an online survey, including the DS14 Type D Scale. AN(C)OVAs and X(2) tests were used to compare participants scoring (i) low on NA and SI; (ii) high on SI only; (iii) high on NA only; (iv) high on NA and SI (Type D).

RESULTS

Participants with Type D personality (29%) were less likely to follow a healthy diet or to consult healthcare professionals in case of problems with diabetes management than those scoring high on neither or only one component. They also reported more barriers surrounding medication use, diabetes-specific social anxiety, loneliness and symptoms of depression and anxiety. There were no differences in standard biomedical risk factors (body mass index, blood pressure, cholesterol, HbA1c). After adjustment for demographics, clinical characteristics, NA, and SI in multivariable logistic regression analyses, Type D personality was independently associated with 2 to 3-fold increased odds of suboptimal health behaviors and over 15-fold increased odds of general emotional distress.

CONCLUSIONS

Type D personality was not related to standard biomedical risk factors, but was associated with unhealthy behaviors and negative emotions that are likely to have adverse impact on adults with diabetes.

Cancer survivors' self-efficacy to self-manage in the year following primary treatment

PURPOSE

Cancer survivors are increasingly expected to manage the consequences of cancer and its treatment for themselves. There is evidence that self-efficacy is important for successful self-management and that this can be enhanced with support. The purpose of this study was to assess self-efficacy to manage problems in the year following primary treatment.

METHODS

This cross-sectional online survey included cancer survivors who had completed their treatment within the past 12 months. Self-efficacy was assessed and variables expected to be associated with self-efficacy were measured using validated scales including quality of life, well-being, illness perceptions, depression and social support.

RESULTS

One hundred eighty-two respondents (mean age 50; 81% female) completed the survey. They had been treated for a range of cancers; most commonly breast (45%). Self-efficacy scores varied between individuals and according to the illness-related task to be managed. Respondents were least confident in managing fatigue and most confident in accessing information about their cancer. Individuals most likely to report low self-efficacy were women, those experiencing higher levels of pain and/or depression, lower well-being scores, lower socio-economic status, low levels of social support, or a more negative perception of cancer.

CONCLUSIONS

Self-efficacy to self-manage problems faced as a consequence of cancer and its treatment can vary widely in the year following treatment. Fatigue may be particularly difficult to manage.

IMPLICATIONS FOR CANCER SURVIVORS

Variations in self-efficacy highlight the importance of assessing specific problems faced and people's confidence to manage them in order to tailor appropriate self-management support.

Variation in fatigue among 6011 (long-term) cancer survivors and a normative population: a study from the population-based PROFILES registry

PURPOSE

Cancer survivors commonly experience fatigue, related to disease and its treatment. This study aimed to compare fatigue severity among survivors of different cancer types with a normative population and also to identify variations in fatigue among cancer survivors according to clinical and demographic variables.

METHODS

We used cancer survivorship data from the population-based PROFILES registry. We included survivors of endometrial (EC, n = 741) or colorectal cancer (CRC, n = 3878) (1998-2007), thyroid cancer (TC, n = 306) (1990-2008), Hodgkin (HL, n = 150) or non-Hodgkin lymphoma (NHL, n = 716), or multiple myeloma (MM, n = 120) (1999-2008). A representative Dutch normative population (n = 2040) was also assessed. Participants completed the Fatigue Assessment Scale.

RESULTS

Cancer survivors were more often classified as fatigued (EC/CRC 39%, HL 40%, NHL 43%, MM 51%, TC 44%) compared with the normative population (21 %; p < 0.001). MM survivors were more often classified as fatigued than all other cancer groups, except NHL (overall p = 0.02). Shorter times since diagnosis (<5 years, 41 versus 38%; p < 0.05), younger age (≤65 years, 42 versus 39%; p < 0.01), being female (43 versus 36%; p < 0.01), chemotherapy treatment (43 versus 39%; p < 0.01), comorbidity (no (27%) versus 1 (35%) versus ≥2 (52%); p < 0.01), educational level (low (44%) versus medium (41%) versus high (32%); p < 0.01), and absence of a partner (47 versus 38%; p < 0.01) were associated with fatigue.

CONCLUSIONS

Fatigue levels are substantial in (long-term) cancer survivors and vary depending on cancer type, time since diagnosis, age, gender, treatment with chemotherapy, number of comorbid conditions, educational level, and partnership. Since significantly more cancer survivors feel fatigued in comparison with the normative population, appropriate information, assessment, and interventions for fatigue are needed during or after oncologic treatment. Furthermore, focus on better control or management of comorbid conditions of cancer survivors is recommended.

Does type D personality affect symptom control and quality of life in asthma patients?

AIMS AND OBJECTIVES

This study aims to identify the effects of type D personality on symptom control and quality of life and to explore factors influencing quality of life among asthma patients in Korea.

BACKGROUND

Psychological factors such as depression and stress are well known to be related to medical outcomes and quality of life in asthma patients. People with type D personality are vulnerable to stress, show poor prognosis in disease and experience low quality of life.

DESIGN

A descriptive cross-sectional design was used.

METHODS

A total of 144 patients with asthma participated in this study. Data were collected through face-to-face interviews using structured questionnaires: the Type D Personality Scale-14, Asthma Control Test and Asthma-Specific Quality of Life.

RESULTS

About 33% of participants were classified into the type D personality group. The type D personality group showed statistically significantly lower symptom control and asthma-specific quality of life compared to the non-type D personality group. Based on forward stepwise multiple regression, the most significant factor of quality of life was symptom control, followed by type D personality, hospitalisation within the previous one year, and lifetime hospitalisation experiences.

CONCLUSIONS

The prevalence of type D personality in asthma patients was high, and type D personality was significantly associated with poor symptom control and low quality of life. Psychosocial interventions might be beneficial to improve symptom control and quality of life in asthma patients with type D personality.

RELEVANCE TO CLINICAL PRACTICE

Nurses should be aware of the high prevalence of type D personality and the effects on symptom control and quality of life in asthma patients. Nurses should also provide personality-specific interventions to improve quality of life in such patients.

Illness perceptions in relation to experiences of contemporary cancer care settings among colorectal cancer survivors and their partners

Illness is constituted by subjective experiences of symptoms and their psychosocial consequences. Illness perceptions concern people's lay beliefs about understandings and interpretation of a disease and expectations as to disease outcome. Our knowledge about illness perceptions and coping in relation to the cancer care context among persons with colorectal cancer (CRC) and their partners is incomplete. The aim of the present study was to explore illness perceptions in relation to contemporary cancer care settings among CRC survivors and partners. The present research focused on illness rather than disease, implying that personal experiences are central to the methodology. The grounded theory method used is that presented by Kathy Charmaz. The present results explore illness perceptions in the early recovery phase after being diagnosed and treated for cancer in a contemporary cancer care setting. The core category outlook on the cancer diagnosis when quickly informed, treated, and discharged illustrates the illness perceptions of survivors and partners as well as the environment in which they were found. The cancer care environment is presented in the conceptual category experiencing contemporary cancer care settings. Receiving treatment quickly and without waiting was a positive experience for both partners and survivors; however partners experienced the information as massive and as causing concern. The period after discharge was being marked by uncertainty and loneliness, and partners tended to experience non-continuity in care as more problematic than the survivor did. The results showed different illness perceptions and a mismatch between illness perceptions among survivors and partners, presented in the conceptual category outlook on the cancer diagnosis. One illness perception, here presented among partners, focused on seeing the cancer diagnosis as a permanent life-changing event. The other illness perception, here presented among survivors, concentrated on leaving the cancer diagnosis behind and moving forward. The importance of illness perceptions among survivors, and the differences in illness perceptions between survivors and partners, should be recognized by healthcare professionals to achieve the goals of person-centered contemporary cancer care.

The individual and combined effect of colorectal cancer and diabetes on health-related quality of life and sexual functioning: results from the PROFILES registry

PURPOSE

This study examined the individual and combined effect of having colorectal cancer (CRC) and diabetes mellitus (DM) on health-related quality of life (HRQoL) and sexual functioning.

METHODS

Data from questionnaires collected in 2010 among CRC patients and a sample of the general Dutch population were used. All persons older than 60 years were included in this study. DM prevalence among the CRC sample as well as the sample of the general population was self-reported. HRQoL was measured using the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire version 3.0 (QLQ-C30), and sexual functioning was assessed with four scales from the EORTC-QLQ-CR38.

RESULTS

In total 624 persons without CRC and DM, 78 persons with DM only, 1,731 with CRC only, and 328 with both CRC and DM were included. Having both CRC and DM did not result in lower HRQoL and sexual functioning than the sum of the individual effects of both diseases. CRC, irrespective of having DM, was associated with lower scores on most EORTC-QLQ-C30 subscales, except global health, pain, and appetite loss. CRC was also independently associated with more erection problems among males. DM, irrespective of having CRC, was associated with lower physical functioning and more symptoms of dyspnea.

CONCLUSIONS

Having both CRC and DM did not result in lower HRQoL and sexual functioning than the sum of the individual effects of both diseases. As CRC was found to be consistently associated with lower functioning and more symptoms, CRC and its treatment seem to contribute stronger to lower HRQoL and sexual functioning compared with DM.

Illness perceptions of cancer patients: relationships with illness characteristics and coping

OBJECTIVE

Illness perceptions have proven to be predictive of coping and adjustment in many chronically ill patients. However, insights into illness perceptions of cancer patients are scarce. The purpose of the present study was to explore how a heterogeneous sample of cancer patients perceive their illness. We also examined the relationships between cancer patients' illness perceptions, their illness characteristics, and their coping strategies.

METHODS

Participants were 325 cancer patients of a generic nationwide longitudinal panel study among cancer patients in the Netherlands. They completed the revised Illness Perception Questionnaire (Winter 2011/2012) and the Mental Adjustment to Cancer Scale (Spring 2012). Analyses of variance and linear regression analyses were conducted.

RESULTS

Patients' views on the chronicity of cancer vary, but many believe their illness to be long-lasting. Furthermore, they strongly believe the cancer treatment to be effective. People with skin cancer experience relatively little negative consequences (p < 0.01). Recently treated patients experience more negative consequences (p < 0.001) and perceive their illness as more chronic (p < 0.01). Surprisingly, neither perceptions of treatment control nor perceptions of personal control are related to specific ways of coping. However, more passive ways of coping were more often found in patients who perceived their illness as long-lasting, more emotionally burdening, and having more negative consequences.

CONCLUSIONS

Our findings suggest that cancer patients might benefit more from support to alleviate the perceived severity and threat of their illness rather than from (further) strengthening their control beliefs.

Psychosocial predictors of health outcomes in colorectal cancer: a comprehensive review

BACKGROUND

A diagnosis of colorectal cancer (CRC) and its long-term treatment may lead to significant psychological distress and impaired health-related quality of life (HRQoL) for a significant proportion of patients.

METHODS

We searched the PubMed/MEDLINE electronic database for available literature on the associations between personality characteristics, depression, psychological distress and HRQoL in CRC. Additional references were identified through the citation tracking of the included articles.

RESULTS

Recent evidence indicates that Type-D (distressed) personality may predict distress among CRC patients. Additionally, other personality traits, such as specific ego defense mechanisms, influence the coping responses and HRQoL. Although the presence of a stoma has been linked to the development of depressive symptoms and impairment in HRQoL in CRC patients, more prospective studies are necessary to confirm these associations. Sense of coherence (SOC) has both a moderating and mediating effect on health (especially mental health and HRQoL), and preliminary data indicate that SOC may be an independent predictor of CRC survival.

CONCLUSIONS

The interplay between personality variables during the elaboration of "the impaired role" is complex, and the assessment of personality traits may be incorporated into a comprehensive psychosomatic evaluation of CRC patients. More well-designed prospective investigations are necessary to establish the contributory role of personality dimensions for the development of and protection from distress and impairment in the HRQoL of CRC patients, which could eventually lead to the development of psychosocial interventions that are personalized to this patient population (for example, manual-based psychotherapies).

The impact of comorbidity on Health-Related Quality of Life among cancer survivors: analyses of data from the PROFILES registry

PURPOSE

The aim of this study was to assess the difference in explained variance of Health-Related Quality of Life (HRQoL) between comorbidity, sociodemographic characteristics and cancer characteristics. This association was assessed among thyroid cancer, colorectal cancer, and (non-)Hodgkin's lymphoma patients.

METHODS

Data from three large population-based surveys on survivors of thyroid cancer, colorectal cancer, and (non-)Hodgkin's lymphoma were used. Cancer-specific HRQoL was assessed with the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire Core 30 (QLQ-C30) of which physical function, emotional function, fatigue, and pain were included in the analyses. Comorbidity was assessed using the Self-reported Comorbidity Questionnaire. The association between comorbidity and HRQoL was assessed with multivariate linear regression models. Semi-partial R (2) was reported to assess the amount of variance in HRQoL explained by comorbidity in comparison with sociodemographic and cancer characteristics.

RESULTS

In total, 3,792 cancer survivors were included in this analysis. The variance in HRQoL subscales explained by comorbidity was higher compared with sociodemographic and cancer characteristics for physical function (11-17 vs. 2-4 and 1-2 %, respectively) and emotional function (7-17 vs. 1-3 and 1-3 %, respectively), regardless of cancer type. In addition, comorbidity explained 7-20 and 11-13 % of the variance in pain and fatigue, respectively, compared to 0-4 % for both sociodemographic and cancer characteristics. Osteoarthritis and back pain were strongly associated with physical function and pain, while depression was strongly associated with emotional function. Depression and back pain were strongly associated with fatigue.

CONCLUSIONS

This study showed that comorbidity explained more variance in physical and emotional function, pain, and fatigue in comparison with sociodemographic and cancer characteristics in cancer survivors, regardless of cancer type. Our findings emphasize the importance of adjusting for the presence of comorbid diseases when assessing HRQoL in cancer survivors.

IMPLICATION FOR CANCER SURVIVORS

Cancer survivors suffering from comorbid diseases experience lower levels of health-related quality of life. Clinicians should become more aware of the impact of comorbidity on HRQoL and provide necessary psychological support to assist self-management of comorbid diseases.

Separating emotions from consequences in muscle disease: comparing beneficial and unhelpful illness schemata to inform intervention development

OBJECTIVE

Muscle diseases are currently untreatable and people with muscle disease experience reduced quality of life (QoL) and low mood. Patient's illness perceptions explain large proportions of the variance in QoL and mood, even after considering the impact of disease severity. Therefore a psychological intervention which helps patients modify their illness perceptions may improve QoL and mood even as the disease progresses. However, it is unknown which profile of illness perceptions (illness schema) an intervention should seek to promote. We aimed to fully describe and compare the illness schemata of clusters associated with better and worse outcomes.

METHOD

Following a cluster analysis of 217 people with muscle disease, a between-cluster comparison of QoL and mood identified the clusters associated with better and worse outcomes. Functional impairment was compared between-clusters to indicate if this could account for observed differences. Inter-correlations between the illness perceptions held within each cluster were examined across the clusters.

RESULTS

Three stable clusters holding distinct illness schemata emerged. One cluster was characterised by greater functional impairment, worse QoL and mood than the other two clusters. The other two clusters did not differ in functional impairment but differed significantly in QoL and mood. The cluster associated with better outcomes was characterised by realistic views of timeline, greater coherence, reduced emotional representation and identity, and a lack of association between emotional representation and consequences.

CONCLUSION

Detailed comparison of beneficial and unhelpful illness schemata, taking into account disease-specific concerns, can help inform both the content and composition of an intervention.

Quantifying fatigue in (long-term) colorectal cancer survivors: a study from the population-based patient reported outcomes following initial treatment and long term evaluation of survivorship registry

BACKGROUND

Few studies specifically focus on fatigue of (long-term) colorectal cancer (CRC) survivors or compare fatigue levels with a normative population. Association between surviving multiple primary cancers and fatigue is also explored.

METHODS

Survivors diagnosed from 1998 to 2009 were identified from the Eindhoven Cancer Registry. In total, 3739 (79%) respondents and an age- and gender-matched normative population (n=338) completed questionnaires on fatigue and psychological distress.

RESULTS

More survivors reported feeling fatigued than the normative population (39% versus 22%, p<0.0001). Short-term survivors (<5 years post-diagnosis) had the highest mean fatigue scores compared with long-term survivors (≥5 years post-diagnosis) or the normative population (21±7 versus 20±7 versus 18±5, p<0.0001, respectively). Having primary cancers prior to CRC was associated with more fatigue. Surgery+chemoradiation was independently associated with fatigue (odds ratio (OR): 1.63, 95% confidence interval (CI): 1.17-2.29, p=0.004) as were anxiety (OR: 1.16, 95% CI: 1.12-1.19, p<0.0001) and depressive symptoms (OR: 1.38, 95% CI: 1.33-1.43, p<0.0001).

CONCLUSIONS

Fatigue is a significant problem, especially for short-term CRC survivors. The association between chemoradiation and fatigue suggests that patients could benefit from better information on treatment side-effects. When treating fatigue, clinical care should also focus on survivors' psychological needs, especially survivors of multiple primary cancers.

Scientific inbreeding and same-team replication: type D personality as an example

Replication is essential for validating correct results, sorting out false-positive early discoveries, and improving the accuracy and precision of estimated effects. However, some types of seemingly successful replication may foster a spurious notion of increased credibility, if they are performed by the same team and propagate or extend the same errors made by the original discoveries. Besides same-team replication, replication by other teams may also succumb to inbreeding, if it cannot fiercely maintain its independence. These patterns include obedient replication and obliged replication. I discuss these replication patterns in the context of associations and effects in the psychological sciences, drawing from the criticism of Coyne and de Voogd of the proposed association between type D personality and cardiovascular mortality and other empirical examples.