Health-related quality of life in Colombia: reference values of the EORTC QLQ-C30

Quality of Life of Patients With Cancer at the Beni Mellal Oncology Center

OBJECTIVES

Cancer and its treatments significantly impact individuals' lives and quality of life (QOL). Research on QOL examines these effects, encompassing physical, psychological, and social aspects. Understanding QOL factors is vital for both patients and clinicians. The evaluation of QOL of patients with cancer and its associated predictive factors has not been previously investigated within the Beni Mellal-Khenifra region of Morocco. Our primary aim was to assess the QOL experienced by patients while simultaneously identifying the determinants and predictors influencing it.

METHODS

Patients were enrolled in a cross-sectional study conducted at the Beni Mellal Oncology Center. Each participant was required to fill out the Moroccan Arabic version of the European Organization for Research and Treatment of Cancer QLQ-C30 questionnaire, along with a supplemental questionnaire gathering sociodemographic information. A linear regression analysis was executed to ascertain predictors of the Global Health Status (GHS) and 5 functional scales. The statistical analysis was carried out using Statistical Package for Social Science (SPSS) v25 software.

RESULTS

Our study included 369 patients, with an average age of 52.89. The mean score on the QLQC30 GHS Scale was 64.97. Notably, this score exhibited positive correlations with emotional, social, and role functioning scales, while demonstrating negative correlations with prostate and lung cancers, as well as the presence of pain. Furthermore, the presence of fatigue exhibited associations with all functioning scales, except for social functioning.

CONCLUSIONS

Patients exhibited a favorable GHS. However, it is noteworthy that prostate cancer, lung cancer, the presence of pain, and diminished emotional, social, and role functioning emerged as independent factors significantly associated with poorer GHS.

Health-related Quality of Life Profile of Newly Diagnosed Patients With Myelodysplastic Syndromes by Age, Sex, and Risk Group: A Real-world Study by the GIMEMA

Health-related quality of life (HRQoL) is an important goal of therapy for patients with myelodysplastic syndromes (MDS); however, little is known about HRQoL of these patients at clinical presentation. We report HRQoL profile of newly diagnosed patients with MDS across both the the International Prognostic Scoring System (IPSS) and IPSS-Revised (IPSS-R) classifications, stratified by sex and age group categories, aiming to also establish European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core30 (EORTC QLQ-C30) reference values for these patients. Analysis was based on 927 patients with a median age of 73.3 years (interquartile range, 66.0-79.2), of whom 506 and 421 with lower- and higher-risk disease respectively, according to the IPSS classification. HRQoL was assessed with the EORTC QLQ-C30 and substantial differences by age groups and sex, between and within lower- and higher-risk disease categories were observed. For example, within higher-risk disease patients, the youngest group (ie, 30-59 years) tended to report clinically meaningful worse outcomes across various functional and symptom domains compared with older age groups. We also developed 2 regression models allowing for the prediction of EORTC QLQ-C30 reference scores for patients classified according to either the IPSS or the IPSS-R. Investigation of prevalence rates for clinically important problems and symptoms at diagnosis revealed a substantial burden of the disease with >50% of patients reporting clinically important problems with physical functioning and dyspnea in both lower- and higher-risk disease. Our findings may help to enhance the interpretation of HRQoL outcomes in future MDS studies and to better contextualize HRQoL data from routine practice settings.

"My Body, My Rhythm, My Voice": a community dance pilot intervention engaging breast cancer survivors in physical activity in a middle-income country

BACKGROUND

Interventions to promote physical activity among women breast cancer survivors (BCS) in low- to middle-income countries are limited. We assessed the acceptability and preliminary effectiveness of a theory-driven, group-based dance intervention for BCS delivered in Bogotá, Colombia.

METHODS

We conducted a quasi-experimental study employing a mixed-methods approach to assess the 8-week, 3 times/week group dance intervention. The effect of the intervention on participants' physical activity levels (measured by accelerometry), motivation to engage in physical activity, and quality of life were evaluated using generalized estimating equation analysis. The qualitative method included semi-structured interviews thematically analyzed to evaluate program acceptability.

RESULTS

Sixty-four BCS were allocated to the intervention (n = 31) or the control groups (n = 33). In the intervention arm, 84% attended ≥ 60% of sessions. We found increases on average minutes of moderate-to-vigorous physical activity per day (intervention: +8.99 vs control: -3.7 min), and in ratings of motivation (intervention change score = 0.45, vs. control change score= -0.05). BCS reported improvements in perceived behavioral capabilities to be active, captured through the interviews.

CONCLUSIONS

The high attendance, behavioral changes, and successful delivery indicate the potential effectiveness, feasibility, and scalability of the intervention for BCS in Colombia.

TRIAL REGISTRATION

ClinicalTrial.gov NCT05252780, registered on Dec 7th, 2021-retrospectively registered unique protocol ID: P20CA217199-9492018.

Health-Related Quality of Life of Patients with Metastatic Pancreatic Cancer: A Systematic Literature Review

Background

Metastatic pancreatic cancer (mPaC) has a poor prognosis and available treatments provide only moderate improvements in survival. Preserving or improving health-related quality of life (HRQoL) is therefore an important treatment outcome for patients with mPaC. This systematic review identified HRQoL data in patients with mPaC before and after treatment, compared these with data from the general population, and reported the effects of different mPaC treatments on HRQoL.

Methods

Searches were performed in Embase, PubMed, and the Cochrane Library from January 2008 to May 2021, and the articles identified were screened for HRQoL data in patients with mPaC. Abstracts from relevant congresses were also manually searched. Publications included were randomized controlled trials and observational studies written in English that reported HRQoL data for adult patients with non-resectable mPaC who were on or off treatment.

Results

Thirty relevant publications were identified and HRQoL scores were collected. Overall, baseline mean scores from the European Organization for the Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30), 5-dimension EuroQol questionnaire (EQ-5D), and Functional Assessment of Cancer Therapy-General (FACT-G) for newly diagnosed and previously treated patients with mPaC were worse than those of the general population. Baseline scores were generally better for previously treated patients than for newly diagnosed patients, indicating that mPaC treatments preserve or improve HRQoL. Identified publications also reported changes in HRQoL following first- or subsequent-line chemotherapy. When reported, 10 studies found improvements in overall HRQoL compared with baseline scores, four reported no changes in overall HRQoL after treatment, and six found deteriorations in overall HRQoL.

Conclusion

Patients with mPaC had worse HRQoL than the general population. Available anti-cancer therapies can improve or preserve HRQoL.

General Spanish population normative data analysis for the EORTC QLQ-C30 by sex, age, and health condition

Purpose

General population normative data for the European Organisation for Research and Treatment of Cancer (EORTC) QLQ-C30 questionnaire facilitates interpretation of data assessed from cancer patients. This study aims to present normative data of the general Spanish population.

Methods/patients

Data were obtained from a prior larger study collecting EORTC QLQ-C30 norm data across 15 countries. Data were stratified by sex and age groups (18–39, 40–49, 50–59, 60–69 and > 70 years). Sex and age distribution were weighted according to population distribution statistics. Sex- and age-specific normative values were analysed separately, as were participants with versus those without health conditions. Multiple linear regression was used to estimate the association of each of the EORTC QLQ-C30 scales with the determinants age, sex, sex-by-age interaction term, and health condition.

Results

In total, 1,165 Spanish individuals participated in the study. Differences were found by sex and age. The largest sex-related differences were seen in fatigue, emotional functioning, and global QOL (Quality of Life), favouring men. The largest age differences were seen in emotional functioning, insomnia, and pain, with middle-aged groups having the worst scores. Those > 60 years old scored better than those < 60 years old on all scales except for physical functioning. Participants with no health conditions scored better in all QLQ-C30 domains.

Conclusions

The present study highlights differences in HRQOL between specific sex/age strata and especially between people with and without a health condition in the general Spanish population. These factors must be considered when comparing general population HRQOL data with that of cancer patients.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12955-021-01820-x.

Health-related quality of life and health literacy among adult primary care patients with subsidized or contributive health insurance in Colombia

CONTEXT

Colombia passed Law 100 in 1993 with the goal of providing universal health care coverage, and by 2013, over 96% of the Colombian population had health insurance coverage. However, little is known about how health-related quality of life (HRQoL) and health literacy are related among those with the two most common types of health insurance coverage: subsidized (those with lower incomes) and contributory (those with higher incomes) coverage.

OBJECTIVES AND METHODS

In the current exploratory investigation, data from adults visiting six primary care clinics in Colombia were analysed to examine the relationship between HRQoL (assessed as problems with mobility, self-care, completing usual activities, pain/discomfort, and anxiety/depression), demographics, the two health insurance types, and health literacy. Analyses also assessed whether, within insurance types, health literacy was related to HRQoL.

RESULTS

Results showed that those with contributory health insurance coverage had greater health literacy than those with subsidized coverage, and this was accounted for by differences in education and socioeconomic status. HRQoL did not differ by insurance type. Although lower health literacy was related to worse HRQoL in the overall sample, in subgroup analyses lower health literacy significantly related to worse HRQoL only among those with subsidized health insurance coverage.

CONCLUSION

Targeting skills which contribute to health literacy, such as interpreting medical information or filling out forms, may improve HRQoL, particularly in those with subsidized insurance coverage.

Utility and health-related quality of life measures in adult Colombian patients with solid tumours

According to a 2020 report, the World Health Organization explained how, in 20 years, the prevalence of cancer cases will increase by 60% worldwide. In lower-middle-income countries, this figure will be 74.07%. Therefore, the authors propose a series of recommendations, such as how to address both traditional health indicators and the psychosocial environment, to improve the health system. The objective of this study is to demonstrate the impact of cancer on the quality of life (QoL) and health status of oncology patients in Colombia. An observational cross-sectional study using patient reported outcomes tools, such as European Organization for Research and Treatment of Cancer (EORTC) Quality of Life of Cancer Patients (QLQ-C30) and EuroQoL-5 dimensions questionnaire-3 levels (EQ5D-3L), was carried out. The information of 356 people was compiled. They were contacted by patient associations. The results were analysed using descriptive and inferential statistics, using ordinary least squares methodology. For the EORTC QLQ-C30, overall health status was 66.05 (95% confidence interval: 63.78-68.32), on the functional scales, emotional and social function were the two scales with the lowest ratings (71.57 and 71.77), without any representative differences. For the EQ5D-3L, the average utility was 0.70 (Standard deviation: 0.20); 50% of people had a utility between 0.63 and 0.82. The analysed population was most affected in the following areas: financial difficulties, insomnia, anxiety, depression and emotional functioning, establishing the need for future interventions and the creation of public policies that generate a better QoL for patients.

Functional health and symptoms in Spain before and during the COVID-19 pandemic

BACKGROUND

The impact of the coronavirus disease (COVID-19) pandemic on wellbeing and health has so far been studied using mostly cross-sectional designs. To place recent findings into context, we compared symptoms and functional health status in two independent samples assessed before and during the COVID-19 pandemic.

METHODS

Participants were recruited via an online panel using quota sampling. We assessed symptoms, functional health, and global quality of life with the EORTC QLQ-C30 in two general population samples in Spain (collected in July 2019 and April 2020). We also assessed several COVID-19 related variables, such as adherence to social distancing.

RESULTS

Data from N = 1010 participants before the pandemic (mean age 47.1 years, 50.5% female) were compared with data from N = 504 participants during the pandemic (mean age 47.1 years, 50.8% female). Participants during the pandemic (vs. before the pandemic) reported lower role functioning and emotional functioning, as well as less symptom burden. A lower degree of social distancing was associated with better functional health and lower symptom burden.

CONCLUSION

Our findings indicate an impact of the COVID-19 pandemic on functional health and symptom burden in the Spanish general population. The comparison of before and during the pandemic can be used to benchmark results raised only during the pandemic.

Socioeconomic position and quality of life among Colombian hypertensive patients: The mediating effect of perceived stress

This study aimed to assess the relationships between socioeconomic position, perceived stress and Health Related Quality of Life (HRQoL) of patients with hypertension. Data were obtained using the baseline survey of 258 patients from the Social Determinants and Inequities in the Control of Blood Hypertension Program (ProDSICHA). HRQoL was measured with SF-8 Health Survey. Socioeconomic position was measured using education, and the MacArthur Scale. Stress was measured with Perceived Stress Scale. A higher educational level was associated with a higher perception of stress (Coeff = 0.78, p = 0.019). Also, a lower position in the community was associated with a higher perception of stress (Coeff = −0.56, p = 0.027). A higher level of perceived stress was associated with a higher level of mental health (Coeff = 0.64, p = 0.000). No statistical differences were found in the relations between socioeconomic position and physical HRQoL. These findings warrant further research to understand the role of socioeconomic position in physical HRQoL.

Palliative care needs among patients with advanced illnesses in Bhutan

Background

Palliative care improves the quality of lives of patients and families affected by advanced illnesses through the prevention and relief of suffering. While palliative care is well established in developed countries, it is inadequate or non-existent in most developing countries. Palliative care is an emerging concept in Bhutan, a tiny Himalayan Kingdom. A small community palliative care service is available in the national referral hospital with three dedicated inpatient palliative care beds. This study explored the needs for palliative care among patients diagnosed with advanced illnesses and is a component of a larger project aimed to inform a suitable palliative care model for the country.

Methods

This is a cross-sectional descriptive study. A survey, using a structured questionnaire including the EORTC QLQ-C30, was carried out among patients with advanced illness in hospitals, primary care units and communities across the country. Purposeful and snowball sampling strategies were used to recruit study participants.

Results

Seventy (76%), out of 93 eligible patients, agreed to participate in the survey. Participants reported low to moderate scores on physical, role, emotional, cognitive and social functioning, a moderate score for the global health/ quality of life scale and moderately high (worse) scores in symptoms including fatigue, pain, insomnia, loss of appetite and the financial impact from the disease.

Conclusions

The symptom burden experienced by patients affected by advanced illnesses demonstrates the need for palliative care in Bhutan. These findings will help inform the development of a public health-focused palliative care model, modified to the Bhutanese context, as recommended by the World Health Organization.

Quality of life among Ethiopian cancer patients

PURPOSE

Cancer is of increasing prevalence in less-developed countries. However, research on the patients' quality of life (QoL) in these countries is very limited. The aim of this study was to examine QoL of cancer patients in Africa.

METHOD

A sample of 256 cancer patients treated in an Ethiopian hospital was examined with the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire EORTC QLQ-C30, the Multidimensional Fatigue Inventory, and the Hospital Anxiety and Depression Scale. A group of 1664 German cancer patients served as a comparison group.

RESULTS

Most of the scales of the EORTC QLQ-C30 showed acceptable reliability in the Ethiopian sample. Compared with the German cancer patients, the Ethiopian patients showed lower QoL in most dimensions, especially in financial difficulties, physical functioning, pain, and appetite loss (effect sizes between 0.52 and 0.75). Illiteracy, tumor stage, and treatment (surgery and chemotherapy) were associated with QoL in the Ethiopian sample. QoL was strongly correlated with fatigue, anxiety, and depression.

CONCLUSION

The EORTC QLQ-C30 is a suitable instrument for measuring QoL in Ethiopia. The detriments in QoL in the Ethiopian patients indicate specific cancer care needs for the patients in a developing country.

Health-Related Quality of Life of an adult population sample in Barranquilla, Colombia

Objective The aim of this study was to estimate values of health-related quality of life (HRQOL) by focusing on the physical and mental health of an adult population sample in the city of Barranquilla, Colombia.Materials and Methods Cross-sectional study with 368 adults representing an adult population. The questionnaires included the health-related quality of life “CDC-Healthy Days”, the Zung Self-Rating Depression Scale, and the Overall Disability Sum Score. The prevalence of fair or poor health status (FPH), frequent physical distress (FPD), frequent mental distress (FMD), and frequent activity limitation (FAL) was estimated according to socio-demographic characteristics, presence of depression, and physical disability.Results The mean age of 368 adults was 45.6 ± 18.3 years; 55.7% were males. Only 21% of this population considered their general health to be fair or poor. The prevalence of FPH, FPD, FMD and FAL was higher in women than in men, and increased with greater severity of depression and higher physical disability. Moreover, 12% of the population presented with mild depression, 3.8% with moderate depression, and less than 1% with severe depression. 94% of this population did not have an arms or legs disability.Discussion This study provides HRQOL values for an adult sample of the population of Barranquilla, Colombia. Overall, the HRQOL of this population, with subtle differences, is similar to other reports from Colombia. In general, women and people with depression and physical disabilities had a worse quality of life.

Health-Related Quality of Life of an adult population sample in Barranquilla, Colombia

Objective The aim of this study was to estimate values of health-related quality of life (HRQOL) by focusing on the physical and mental health of an adult population sample in the city of Barranquilla, Colombia.Materials and methods Cross-sectional study with 368 adults representing an adult population. The questionnaires included the health-related quality of life “CDC-Healthy Days”, the Zung Self-Rating Depression Scale, and the Overall Disability Sum Score. The prevalence of fair or poor health status (FPH), frequent physical distress (FPD), frequent mental distress (FMD), and frequent activity limitation (FAL) was estimated according to socio-demographic characteristics, presence of depression, and physical disability.Results The mean age of 368 adults was 45.6 ± 18.3 years; 55.7% were males. Only 21% of this population considered their general health to be fair or poor. The prevalence of FPH, FPD, FMD and FAL was higher in women than in men, and increased with greater severity of depression and higher physical disability. Moreover, 12% of the population presented with mild depression, 3.8% with moderate depression, and less than 1% with severe depression. 94% of this population did not have an arms or legs disability.Discussion This study provides HRQOL values for an adult sample of the population of Barranquilla, Colombia. Overall, the HRQOL of this population, with subtle differences, is similar to other reports from Colombia. In general, women and people with depression and physical disabilities had a worse quality of life.

Reference data of the EORTC QLQ-C30 questionnaire: five consecutive annual assessments of approximately 2000 representative Dutch men and women

OBJECTIVE

Cancer and its treatment have an influence on health-related quality of life (HRQOL). Normative data could help to interpret HRQOL among cancer patients. Our aim was to generate longitudinal normative data based on sex, age and morbidity for the European Organisation for Research and Treatment of Cancer (EORTC) QLQ-C30 questionnaire.

METHODS

The QLQ-C30 and the Self-administered Comorbidity Questionnaire were administered to a representative panel of the Dutch-speaking population in the Netherlands in 2009 (n = 1743), 2010 (n = 2050), 2011 (n = 2040), 2012 (n = 2194) and 2013 (n = 2333).

RESULTS

Regarding sex, at baseline, women scored statistically significant and clinically relevant worse on fatigue, pain and insomnia compared to men. Regarding age groups and sex, HRQoL was lower among the older age groups in men and women. For men, at baseline, significant and clinically relevant age differences were found on physical, role and cognitive functioning, global QOL scale, fatigue, pain and dyspnea. The change over 5 years was larger for older age groups. For women, at baseline, significant and clinically relevant age differences were found on physical functioning, role functioning, nausea/vomiting, pain, dyspnea and insomnia. Those without self-reported morbidities reported a better HRQoL compared to those with morbidities. Among those who completed five assessments, the summary scale scores were stable over time, were higher in men than in women, and higher in younger compared to older age groups.

CONCLUSIONS

Although HRQoL remains relatively stable over time, HRQoL data needs to be interpreted with care as many confounding factors can have an impact on HRQOL. Our data (which is freely available) can aid in the interpretation of QLQ-C30 scores and can help increase our understanding of the influence of age, sex, time and morbid conditions on HRQoL among cancer patients.

Older Patients Are Less Affected by Radiochemotherapeutic Treatment than Younger

Purpose

The general assumption is that cancer therapy impairs the quality of life in elderly patients more than in younger ones. We were interested in the effects of radiochemotherapeutic treatment on the quality of life of elderly patients compared to younger patients and compared to normative data of a general German population.

Methods and Materials

A total of 465 patients completed the EORTC QLQ-C30 questionnaire. Repetitive completion of the questionnaire over time led to 1407 datasets. Our patient cohort contained 197 (42.4%) patients with colorectal cancer followed by 109 (23.4%) patients with head and neck cancer, 43 (9.2%) patients with lung cancer, and 116 (25%) with other types of cancer. Patients were categorized into five age groups, the respective cut-offs being 40, 50, 60, and 70 years. Normative data were drawn from a population study of a general German population.

Results

Functional scores and symptom scores were approximately stable between the different age groups. Our data does not suggest a significant difference between the investigated age groups. Advancing age evened out the differences between the normative data of the general German population and the cancer patients in 11 of 15 scores.

Conclusions

The general belief about younger patients having fewer physical and psychological problems related to radiochemotherapy needs to be reconsidered. Overall resilience of older patients is apparently underestimated.

Quality of life in cancer patients-a comparison of inpatient, outpatient, and rehabilitation settings

PURPOSE

The aim of this study was to compare quality of life (QoL) data from cancer patients in different clinical settings with data from the general population.

METHODS

A sample of 4020 German cancer patients (1735 inpatients, 1324 outpatients, 961 participants in rehabilitation treatment) was tested with the EORTC QLQ-C30.

RESULTS

Compared with the general population, cancer patients reported markedly worse QoL. There were clinically significant differences on all 15 scales of the EORTC QLQ-C30 (except one). For the sum score, averaging across 13 scales, the effect size of the difference between cancer patients and the general population was d = 1.16. Inpatients reported the greatest detriments to QoL, followed by the rehabilitation patients and the outpatients (mean sum scores 68.6, 71.0, and 72.3, respectively, compared with 89.2 in the general population). Mean scores for different groups of cancer sites are given separately for the three settings.

CONCLUSION

The detriments to QoL were stronger than in comparable studies conducted on data from clinical trials. Since these detriments were found in all three settings to a similar degree, health care providers should offer their services not only to inpatients but to outpatients and patients treated in rehabilitation clinics as well. The data can be used for QoL comparisons of assessments from different settings.

Quality of life in breast cancer patients: Associations with optimism and social support

Background/Objective: The purpose of this study was to examine quality of life (QoL) in breast cancer patients from Colombia and to explore the relationship between QoL, habitual optimism, and social support. Method: A sample of 95 breast cancer patients treated in a hospital in Bogotá were administered the QoL instrument EORTC QLQ-C30 and the Life Orientation Test LOT-R. Additionally, they were asked to indicate from whom (physicians, friends, nurses, etc.) they wished and received social support. Reference data for the EORTC QLQ-C30 and the LOT-R were taken from a representative sample of the general Colombian population. Results: The breast cancer patients showed detriments to their QoL on most functioning scales and symptom scales of the EORTC QLQ-C30, while their general assessments of health and QoL were not worse than those of the controls. Optimism was positively correlated with QoL. Most patients wanted and received social support from their physicians and friends/family. Conclusions: The results suggest that optimism helps patients better cope with disease. A general assessment of global QoL cannot replace the more specific assessments of the functioning domains and symptoms.

Differences between leisure-time physical activity, health-related quality of life and life satisfaction: Al Ritmo de las Comunidades, a natural experiment from Colombia

Physical inactivity is one of the major public health problems worldwide. Community-based interventions have been pointed out as a promising strategy to increase physical activity (PA) levels and impact population health. Recreovía is a community program with a potential to promote PA. There is growing evidence for two benefits derived from the practice of PA: an increased perception of health-related quality of life (HRQoL) and life satisfaction (LS). The purpose of this study was to assess differences between leisure-time PA and perceptions of both HRQoL and LS, as well as to assess differences between perceptions of both HRQoL and LS for Recreovía and non-Recreovía participants. Data were obtained using the baseline cross-sectional survey of 1533 participants (501 belonged to the intervention group) as part of the natural experiment Al Ritmo de las Comunidades. HRQoL was measured with the European Organization for Research and Treatment of Cancer 30-item questionnaire, LS was measured with Questions on Life Satisfaction Scale, and self-reported minutes of leisure-time PA were measured with the long version of the International Physical Activity Questionnaire. The mean age of participants was 41.7 years (standard deviation (SD) = 16.3). The participants had a good overall HRQoL and LS. The mean minutes of leisure-time PA were 158.1 min (SD = 230.2) a week. Results showed that those participants who reported higher leisure-time PA levels also reported a significantly higher LS (M = 41.9, SD = 35.0) relative to participants with lower levels (M = 37.6, SD = 34.2, t(1532) = -2.36, p < 0.01). There were no statistical differences in the perception of HRQoL and leisure-time PA (t(1532) = -1.03, p = 0.30), although active people had higher scores. Both HRQoL and LS scores were higher in individuals who were participating in Recreovía (p < 0.001). Higher LS scores were found in the group with higher leisure-time PA, while HRQoL showed no differences. Better psychological well-being indices were found in the Recreovía group.

Health-related Quality of Life Assessed by the EORTC QLQ-C30 Questionnaire in the General Slovenian Population

Background

The aim of our study was to obtain reference data of the EORTC QLQ-C30 quality of life dimensions for the general Slovenian population. We intend to provide the researchers and clinicians in our country with the expected mean health-related quality of life (HRQL) scores for distinctive socio-demographic population groups.

Methods

The EORTC QLQ-C30 questionnaire supplemented by a socio-demographic inquiry was mailed or distributed to 1,685 randomly selected individuals in the Slovenian population aged 18 – 90. Answers from 1,231 subjects representing socio-demographic diversity of the Slovenian population were collected and transformed into EORTC dimensions and symptoms. The impact of socio-demographic features on HRQL scores was assessed by multiple linear regression models.

Results

Gender, age and self-rated social class are the important confounders in the quality of life scores in our population. Men reported better quality of life on the majority of the specific scales and, at the same time, reported fewer symptoms. There was no gender-specific difference in cognitive functioning. The mean scores were consistently lower with age in both sexes.

Conclusions

This is the first study to report the normative EORTC QLQ-C30 scores for one of the south-eastern European populations. The reported expected mean scores allow Slovenian oncologists to estimate what the quality of life in cancer patients would be, had they not been ill. As they are derived by common methodology, our results can easily be included in any further international comparisons or in the calculation of European summarized HRQL scores.

European reference values for the quality of life questionnaire EORTC QLQ-C30: Results of a German investigation and a summarizing analysis of six European general population normative studies

BACKGROUND

The aims of this study are to present the results of a new general population normative study of the quality of life questionnaire EORTC QLQ-C30 and to give European reference values averaged across six studies.

METHODS

The empirical study was based on a representative sample of the German adult population (N = 2448). The subjects were asked to fill in several questionnaires, one of them being the EORTC QLQ-C30.

RESULTS

EORTC QLQ-C30 mean scores of this sample indicated slightly better quality of life (QoL) than in previous European studies. QoL decreased with age, but there were only small gender differences. The mean scores were compared with the age and gender adjusted scores of five other European normative studies from Sweden, the Netherlands, Norway, and Germany (N between 1731 and 4910). Finally, the data of these five studies and the new study were combined to arrive at averaged European normative values for the scales and the symptom items of the questionnaire.

CONCLUSION

The reference values of the scales pooled across six European studies (N = 16 151) can be used as general population references for QoL scores of cancer patients.