Psychometric analyses of the Mental Adjustment to Cancer (MAC) scale in a Greek palliative care unit

Quality of life in patients with soft palate resection: The relationship between reported functional prosthetic outcomes and the patient's psychological adjustment

STATEMENT OF PROBLEM

Tumors of the soft palate and the adjacent tissues often create considerable soft palate defects that are challenging for the maxillofacial prosthodontist. Soft palate obturator prostheses can usually address functional and esthetic concerns; however, the effectiveness of the prosthetic rehabilitation in improving the patient's well-being and overall quality of life (QOL) has not been extensively researched.

PURPOSE

The purpose of the present research was to evaluate the function of the prosthesis, to review the interrelation between sociodemographic, medical, and treatment (SMT) characteristics, QOL, and prosthesis functioning, and to analyze the role of the prosthesis in how the patient represents the illness and the psychological coping response.

MATERIAL AND METHODS

Thirty-three patients who underwent resection of the soft palate and had been using a technically successful soft palate obturator prosthesis for at least 1 year were interviewed by means of 5 questionnaires: European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Core Questionnaire (QLQ-C30), Head and Neck Cancer Module (QLQ-HN35), Obturator Functioning Scale (OFS), Illness Perceptions Questionnaire (IPQ-R), and Mental Adjustment to Cancer Scale (MAC). Data analysis was performed at α=.01.

RESULTS

The QOL (r=-0.53, P=.001), personal control (r=-0.53, P=.001), negative adjustment to cancer (r=0.47, P=.005), treatment control (r=-0.55, P=.001), consequences (r=0.62, P<.001), and emotional representations (r=0.30, P=.009) were significantly related to prosthesis functioning. Better QOL was significantly related to prosthesis functioning (P=.006), age (P=.001), sex (P=.011), and type of soft palate defect (P=.009). The most important predictors of favorable soft palate obturator functioning were age (P<.001) and type of soft palate defect (P=.01).

CONCLUSIONS

A patient-perceived effective soft palate obturator prosthesis was a significant predictor for advanced QOL, better adjustment to illness and illness-related disabilities, as well as the overall coping response to cancer.

Exploration of coping styles in male patients with head and neck cancer: a prospective cohort study

Majority of head and neck cancer (HNC) patients are male, and more than 85% of patients with HNC have the habit of smoking and drinking. Due to the specific demographic characteristics, HNC patients are anticipated to have specific coping styles, affecting psychological distress, survival, and quality of life. We explored the subscales of the Mental Adjustment to Cancer (MAC) Scale in male patients with HNC, and then examined the correlation between revised subscales of the MAC scale and anxiety/depression. Participants were 150 male inpatients with HNC, and their demographic and medical data were obtained. Coping style was assessed by MAC scale. Anxiety and depression were assessed using the Hospital Anxiety and Depression Scale. Out of 40 items in the original MAC scale, 19 items were excluded by factor analysis, and the remaining 21 items were divided into three factors: Negative Adjustment, Positive Adjustment, and Abandonment. Negative and Positive Adjustments were similar to the copings of mixed gender patients with heterogeneous cancers, and Abandonment was a new subscale specific to male patients with HNC. This subscale had a weak positive correlation with anxiety and depression. Male HNC patients revealed a specific coping style of Abandonment, related with psychological distress. We believe that an understanding of the Abandonment coping style revealed in our study will improve the psychological support offered to male patients with HNC.

The relation of spouse illness representations to patient representations and coping behavior: A study in couples dealing with a newly diagnosed cancer

The central role of spouses/partners in patients' adaptation to cancer is well-established, but few studies have examined how partners facilitate adaptation. The Common Sense Model posits that a representation of illness as more controllable and less threatening promotes adaptive coping, but this has not been examined in a dyadic context. This cross-sectional study examined the relations of spouse illness representations of personal and treatment control, and emotional representations to recently diagnosed cancer patients' coping behaviors, through patient illness representations. One hundred forty-nine heterosexual couples (39.60% female patients; 77.18% dealing with early stage cancer) participated in the study. Structural Equation Modeling showed that spouse illness representations were related to patient coping directly and indirectly through patient illness representations. Both partners' representations of control were related to greater patient adaptive coping, and both partners' emotional representations were related to greater dysfunctional coping. These findings highlight the importance of partner illness representations in patients' adaptation to cancer. They also suggest that early intervention programs that address both partners' illness representations may enhance patients' adaptation to cancer.

Patient and physician reports of the information provided about illness and treatment: what matters for patients' adaptation to cancer during treatment?

OBJECTIVE

The aim of this study was to examine (a) whether illness representations mediate the relation of the amount of information provided by physicians to patients' adaptation to illness; (b) whether patient-physician agreement on the information provided impacts the aforementioned relationship. The study focused on information that, according to the Common Sense Self-Regulation Model, is essential for adaptation to illness.

METHODS

The sample consisted of 93 patients undergoing chemotherapy and their physicians. Indirect (mediation) effects and conditional (moderated) indirect effects were examined using bootstrapping.

RESULTS

The more illness and treatment-related information was provided by physicians, the more positive illness representations (specifically, illness consequences, emotional representations, and personal control) were reported by patients. In turn, these illness representations were related to better physical functioning and better adjustment to cancer. The degree of the patient-physician agreement on the information provided did not affect this relationship.

CONCLUSIONS

What seems to be more crucial for patients' adaptation to cancer during treatment is the amount of information provided by physicians rather than their agreement with patients on the information provided. Also, there is a need to thoroughly examine the pathways through which information provision impacts adaptation to illness.

Coping response and survival in breast cancer patients: a new analysis

PURPOSE

The purpose of this study was to analyse the impact of coping response on survival of breast cancer by using a new method of assessing coping.

METHOD

Adjustment to cancer was assessed using a revised measure in a large cohort of breast cancer patients (N = 578) followed up over a period of 10 years. Impact of coping response measured early in the disease process (<4 months from primary diagnosis of early-stage breast cancer) was assessed, and survival analyses were undertaken including known clinical staging data and cancer treatment details.

RESULTS

After 5 years of follow-up from primary diagnosis, the effect of prior 'negative adjustment' was statistically significantly linked to increased risk of death and relapse of breast cancer, and for the 10-year analysis, this result remained for both risk of death and relapse. There was no statistically significant effect on survival of the novel 'positive adjustment' response.

CONCLUSIONS

Coping with cancer was assessed using a new methodology and is linked to an adverse impact of negative adjustment on overall survival. Positive adjustment was unrelated to survival. The current study strengthens previous evidence that there is a link between survival and coping response. The question remains of how coping response might affect physical outcome. It is considered that coping response likely impacts survival through the mediating effects on lifestyle and health behaviour that may contribute to an adverse prognosis.

Psychometric properties of the Dutch version of the Mental Adjustment to Cancer scale in Dutch cancer patients

OBJECTIVES

The measurement of adjustment to cancer is relevant for research purposes and daily practice. In this study, the psychometric properties of the original five subscales and the two recently proposed summary scales of the Mental Adjustment to Cancer (MAC) scale were examined in Dutch cancer patients.

METHODS

Data from 289 cancer patients were assessed with the Dutch version of the MAC scale and the Hospital and Anxiety Depression scale (HADS); 259 patients completed the MAC scale for a second time.

RESULTS

In total, 85.5% of the participants completed the full MAC scale. The internal consistency of the five subscales and the summary scales were mostly similar to the original versions. The test-retest reliability of the Fighting Spirit, Helplessness/Hopelessness, Anxious Preoccupation, Summary Positive Adjustment and Summary Negative Adjustment subscales were moderate and the test-retest reliability of the Fatalism and Avoidance subscales were low. Correlations between the original and the two summary scales of the MAC scale and the depression and anxiety subscales of the HADS indicated good convergent validity. The structure of the five original subscales as well as the structure of the two proposed summary scales was adequate as shown by construct validity using confirmatory factor analyses.

CONCLUSION

The Dutch version of the MAC scale is a feasible questionnaire and appeared to have comparable psychometric properties as demonstrated by studies in the UK. The psychometric properties of the summary scales and Fighting Spirit and Helplessness/Hopelessness subscales seem to be acceptable. This supports the cross-national usefulness of the MAC scale.

A systematic review of measures of end-of-life care and its outcomes

OBJECTIVE

To identify psychometrically sound measures of outcomes in end-of-life care and to characterize their use in intervention studies.

DATA SOURCES

English language articles from 1990 to November 2005 describing measures with published psychometric data and intervention studies of end-of-life care.

STUDY DESIGN

Systematic review of end-of-life care literature.

EXTRACTION METHODS

Two reviewers organized identified measures into 10 major domains. Eight reviewers extracted and characterized measures from intervention studies.

PRINCIPAL FINDINGS

Of 24,423 citations, we extracted 200 articles that described 261 measures, accepting 99 measures. In addition to 35 measures recommended in a prior systematic review, we identified an additional 64 measures of the end-of-life experience. The most robust measures were in the areas of symptoms, quality of life, and satisfaction; significant gaps existed in continuity of care, advance care planning, spirituality, and caregiver well-being. We also reviewed 84 intervention studies in which 135 patient-centered outcomes were assessed by 97 separate measures. Of these, 80 were used only once and only eight measures were used in more than two studies.

CONCLUSIONS

In general, most measures have not undergone rigorous development and testing. Measure development in end-of-life care should focus on areas with identified gaps, and testing should be done to facilitate comparability across the care settings, populations, and clinical conditions. Intervention research should use robust measures that adhere to these standards.

The use of denial in an ethnically diverse British cancer population: a cross-sectional study

A total of 82 Asian and 117 randomly selected white Caucasian patients at the Leicestershire Cancer Centre were assessed using measures of coping and adaption to cancer. On the Mental Adjustment to Cancer (MAC) scale, Asian patients were more fatalistic (P<0.0001) and had more significant hopeless/helpless scores (P=0.007). The two ethnic groups answered the three questions thought to assess denial differently. Caucasians were more likely not to dwell on their illness (73 vs 55.5%, P<0.0001) and agree with the statement ‘I have difficulty believing this is happening to me’ (73 vs 60.5%, P<0.0001). However, Asian patients were more likely to agree with the statement ‘I don't really believe I have cancer’ (48.2 vs 31.3%, P=0.019). Within both groups there was an association with denial and anxious preoccupation (P<0.001). On the Hospital Anxiety and Depression (HAD) scale, there was no difference in anxiety scores between either sexes or between the Asian and Caucasian groups. However, Asian patients were more depressed (P=0.001). Although denial was significantly related to the presence of both depression (P<0.0001) and anxiety (P=0.001) in the entire patient population, there were different predictors of denial in each subgroup. On multiple regression analysis depression was linked with denial in Caucasians, whereas Fighting Spirit (minus helplessness/hopelessness) was linked with denial in Asian patients. There are definite differences in coping styles in British cancer patients according to ethnicity. While significant numbers in both groups employ denial in some form, Caucasian patients appear to adapt to the psychological pressures of cancer more successfully than Asian patients at a particular point in time. Further work is required to elucidate longitudinal relationships between denial and adaption to cancer.

The Mini-Mental Adjustment to Cancer (Mini-MAC) scale: construct validation with a Greek sample of breast cancer patients

This investigation is a Greek validation of the Mini-Mental Adjustment to Cancer (Mini-MAC) scale, an instrument derived from the MAC and designed to measure styles of coping with cancer. A sample of 225 women diagnosed with breast cancer completed this questionnaire. Statistical analyses using structural equation modeling (SEM) confirmed Watson's original five first-order factors underlying Mini-MAC items: Helplessness/Hopelessness (HH), Anxious Preoccupation (AP), Fighting Spirit (FS), Avoidance (AV) and Fatalism (F). On a higher-order level, SEM and Multidimensional Scaling revealed two second-order factors: adaptive coping (being measured by FS, AV, and F) and maladaptive coping (being measured by HH and AP). Results are discussed in terms of the theoretical framework needed to account for the relationships among Mini-MAC factors and the refinement of the applications of SEM in the study of the mental adjustment to cancer construct.

Escala de Afrontamiento al Cáncer en pacientes oncológicos en población mexicana

Introducción: Los estilos de afrontamiento son variables psicológicas que pueden predecir la adaptación psicológica y en sentido contrario una mayor disfunción psicosocial en pacientes con cáncer. Se han descrito dos dimensiones: centrados en el problema o activos positivos, caracterizados por la búsqueda de información, planificación y resolución de problemas; y los dirigidos a la emoción o evitativos caracterizados por el escape, distanciamiento o desesperanza. Objetivo: Determinar las propiedades psicométricas de la Escala de Afrontamiento del Cáncer en una muestra de pacientes con cáncer de la población mexicana. Método: Participaron 317 pacientes del Instituto Nacional del Cáncer, de los cuales 148 eran mujeres (46,7%) y 169 hombres (53,4%), con una edad media de 46,2 años. Los participantes completaron al mismo tiempo el Mental Adjustment to Cancer (MAC), el HADS y el Termometro del Distress. Resultados: Mediante el análisis factorial se identificaron cinco factores que explicaron el 53,32% de la varianza, con 22 reactivos. La consistencia interna de la escala global fue satisfactoria (0,81). La validez concurrente mostró asociaciones significativas (Pearson r = - 0,120 – 0,586, p <0,05). Discusión y conclusión: La Escala de Afrontamiento del Cáncer derivada del Mental Adjustment to Cancer tiene propiedades psicométricas adecuadas. Es una herramienta útil para fines de investigación y atención en salud mental durante el tratamiento oncológico.