Assessment of quality of life in a multicultural cancer patient population.

Gotay, Carolyn; Blaine, Daniel D.; Haynes, Stephen N.; Holup, Joan; Pagano, Ian

doi:10.1037/1040-3590.14.4.439

Cited by 32 publications

(22 citation statements)

References 29 publications

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“…The EORTC QLQ-C30 has been used in a recent study that examined QOL in a multicultural population of cancer patients from Asian and nonAsian Pacific Islanders [19]. The authors report comparable results and conclude that the EORTC-QLQ-C30 seems viable for the multi-cultural samples examined.…”

Section: Discussionsupporting

confidence: 64%

Conceptual equivalence and health-related quality of life: an exploratory study in Japanese and Dutch cancer patients

et al. 2006

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Research into the equivalence of Western and Japanese conceptualizations of health-related quality of life (HR-QOL) is scarce. We used the Western (European Organization for Research and Treatment of Cancer, EORTC-QLQ-C30) and the Japanese questionnaire in order to analyze the conceptual similarity of HR-QOL factors, and the associations between specific symptom items with overall HR-QOL in Japanese (n=265) and Dutch (n=174) patients with various types of cancer. Both populations completed both instruments. In both patient groups, the overall health scale of the EORTC-QLQ-C30 correlated highly (r=0.59; p<0.001) with the HRQOL-20 composite average score, indicating substantial conceptual comparability. Relationships between all EORTC-QLQ-C30 symptom items with HR-QOL were examined by ranking their correlations with the two overall measures of HR-QOL. Comparable patterns in the Japanese and Dutch samples were observed. The results suggest a considerable conceptual equivalence of HR-QOL in Japanese and Dutch cancer patients, and indicate a satisfactory structural and cross-cultural equivalence for the EORTC-QLQ-C30 with regard to items measuring functioning and specific symptoms. Longitudinal studies are needed to examine the impact of specific symptoms on general quality of life.

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Section: Discussionsupporting

confidence: 64%

Conceptual equivalence and health-related quality of life: an exploratory study in Japanese and Dutch cancer patients

et al. 2006

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“…Table 1 summarizes the four studies and the types of CAM questions that were asked. The four studies were: (1) Quality of Life in Cancer Patients in Hawaii (QOL), the objective of which was to develop, validate, and pilot test an instrument appropriate to assess cancer-related quality of life among the culturally diverse cancer patient population in Hawaii, 28,[30][31][32] (2) Beating the Odds: A study of Patients Who Exceed Expected Survival Times (BTO), a study of individuals who were long-term survivors of cancers that are generally associated with poor survival, 33 (3) Quality of Life in Patients Who Develop Subsequent Primaries (SP), a study that described the psychologic impact among people experiencing more than one primary cancer, 29 and (4) Exploratory Study of Treatment Decision Making in Multiethnic Breast Cancer Patients (TDM), a study that focused on how patients make decisions about their breast cancer treatments. Two studies, BTO and SP, asked subjects: Which of the following remedies have you used for your cancer?…”

Section: Methodsmentioning

confidence: 99%

“…We included in situ and invasive female breast cancer cases from four population-based studies of cancer survivors [28][29][30][31][32][33] ; the subjects were diagnosed during the years 1964-1999 in Hawaii. Subjects with missing data on CAM modality, education, tumor, node, metastasis (TNM) stage, surgery, chemotherapy, heart disease, or diabetes were excluded (n = 30), resulting in 1443 women for the analysis.…”

Section: Methodsmentioning

confidence: 99%

Complementary and Alternative Medicine Use and Breast Cancer Prognosis: A Pooled Analysis of Four Population-Based Studies of Breast Cancer Survivors

Matsuno

Pagano

Maskarinec

et al. 2012

Journal of Women's Health

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Background: Complementary and alternative medicine (CAM) use is common among breast cancer survivors, but little is known about its impact on survival. Methods: We pooled data from four studies conducted in Hawaii in 1994-2003 and linked to the Hawaii Tumor Registry to obtain long-term follow-up information. The effect of CAM use on the risk of breast cancer-specific death was evaluated using Cox regression. Results: The analysis included 1443 women with a median follow-up of 11.8 years who had a primary diagnosis of in situ and invasive breast cancer. The majority were Japanese American (36.4%), followed by white (26.9%), Native Hawaiian (15.9%), other (10.6%), and Filipino (10.3%). CAM use was highest in Native Hawaiians (60.7%) and lowest in Japanese American (47.8%) women. Overall, any use of CAM was not associated with the risk of breast cancer-specific death (hazard ratio [HR] 1.47, confidence interval [CI] 0.91-2.36) or all-cause death (HR 0.82, 95% CI 0.63-1.06). However, energy medicine was associated with an increased risk of breast cancerspecific death (HR 3.19, 95% CI 1.06-8.52). When evaluating CAM use within ethnic subgroups, Filipino women who used CAM were at increased risk of breast cancer death (HR 6.84,. Conclusions: Our findings suggest that, overall, CAM is not associated with breast cancer-specific death but that the effects of specific CAM modalities and possible differences by ethnicity should be considered in future studies.

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“…Some researchers suggest that quality of life includes certain dimensions that refer to areas of functioning such as physical functioning, social functioning, distress, spirituality, etc. [3,4]. Usually, replications of the structure of HRQOL instruments within different samples reveal different dimensions, or the same sets of items form different dimensions [4,5].…”

Section: Introductionmentioning

confidence: 99%

Two Kinds of Items in Quality of Life Instruments: ‘Indicator and Causal Variables’ in the EORTC QLQ-C30

Boehmer

Luszczynska

2006

Qual Life Res

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Two kinds of variables may be differentiated within instruments measuring health-related quality of life (HRQOL). Physical symptoms may be called causal variables because their occurrence can cause a change in HRQOL, but poor HRQOL need not necessarily imply that a patient suffers from these symptoms. Other items can be regarded as indicator variables. They reflect the level of HRQOL and a patient with a poor HRQOL is likely to have low scores on all indicator variables. The aim of this study was to test the relationship of the latent HRQOL construct to items and domains on the EORTC QLQ-C30. Confirmatory factor analysis was performed on EORTC QLQ-C30 data from 205 gastrointestinal cancer patients assessed one month after surgery. Functioning scales were established as variables indicating the level of HRQOL whereas all other subscales and items were established as variables causing a change in HRQOL. The model-data fit was satisfactory. Results support the hypothesis that two kinds of variables may be differentiated within HRQOL instruments. Further research should investigate whether both kinds of variables could be combined into a higher order, aggregate score for HRQOL.

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Assessment of quality of life in a multicultural cancer patient population.

Cited by 32 publications

References 29 publications

Conceptual equivalence and health-related quality of life: an exploratory study in Japanese and Dutch cancer patients

Conceptual equivalence and health-related quality of life: an exploratory study in Japanese and Dutch cancer patients

Complementary and Alternative Medicine Use and Breast Cancer Prognosis: A Pooled Analysis of Four Population-Based Studies of Breast Cancer Survivors

Two Kinds of Items in Quality of Life Instruments: ‘Indicator and Causal Variables’ in the EORTC QLQ-C30

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