Reliability and validity of the functional assessment of cancer therapy—lung (FACT-L) quality of life instrument

Cella, David; Bonomi, Amy E.; Lloyd, Stephen; Tulsky, David S.; Kaplan, Edward H.; Bonomi, Philip

doi:10.1016/0169-5002(95)00450-f

Cited by 687 publications

(487 citation statements)

References 18 publications

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“…The possible range on each subscale is 0 to 28 with higher scores indicating better functioning. The FACT is widely used in cancer studies and both the general measure and the lung cancer specific measure have been shown to possess adequate psychometric properties including internal consistency, convergent validity, and sensitivity to change in performance status ratings (an indicator of patient functional status; Cella et al, 1993Cella et al, , 1995. Cronbach's alphas in the present study were .83 (physical well being), .84 (functional well being), and .73 (lung cancer symptoms).…”

mentioning

confidence: 61%

“…Quality of life was measured using the Functional Assessment of Cancer Therapy -Lung Cancer (FACT-L; Cella et al, 1995). The FACT-L consists of four general and one lung cancer symptom-specific subscale.…”

Section: Methodsmentioning

confidence: 99%

“…Scores on the BFI can range from 1 to 10 with higher scores indicating more symptoms of fatigue. Cronbach alpha in the current study was .95.Quality of life was measured using the Functional Assessment of Cancer Therapy -Lung Cancer (FACT-L; Cella et al, 1995). The FACT-L consists of four general and one lung cancer symptom-specific subscale.…”

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confidence: 99%

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Self-efficacy for managing pain, symptoms, and function in patients with lung cancer and their informal caregivers: Associations with symptoms and distress

Porter

Keefe

Garst

et al. 2008

Pain

234

187

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This study examined self-efficacy for managing pain, symptoms, and function in patients with lung cancer and their caregivers, and associations between self-efficacy and patient and caregiver adjustment. 152 patients with early stage lung cancer completed measures of self-efficacy, pain, fatigue, quality of life, depression, and anxiety. Their caregivers completed a measure assessing their self-efficacy for helping the patient manage symptoms and measures of psychological distress and caregiver strain. Analyses indicated that, overall, patients and caregivers were relatively low in selfefficacy for managing pain, symptoms, and function, and that there were significant associations between self-efficacy and adjustment. Patients low in self-efficacy reported significantly higher levels of pain, fatigue, lung cancer symptoms, depression, and anxiety, and significantly worse physical and functional well being, as did patients whose caregivers were low in self-efficacy. When patients and caregivers both had low self-efficacy, patients reported higher levels of anxiety and poorer quality of life than when both were high in self-efficacy. There were also significant associations between patient and caregiver self-efficacy and caregiver adjustment, with lower levels of self-efficacy associated with higher levels of caregiver strain and psychological distress. These preliminary findings raise the possibility that patient and caregiver self-efficacy for managing pain, symptoms, and function may be important factors affecting adjustment, and that interventions targeted at increasing self-efficacy may be useful in this population.Self-efficacy, or the confidence in one's ability to perform a specific behavior or task (Bandura, 1997), is one factor that has been examined in relation to patient's adjustment to cancer. Selfefficacy for managing pain, symptoms, and function in particular may be critical to a patient's ability to manage the physical and psychological challenges of cancer. For several reasons, lung cancer provides a particularly good model in which to study self-efficacy for pain and symptom control. First, lung cancer is common, being the second leading site of cancer occurrence among both men and women with over 174,000 new cases projected for 2006 (American Cancer Society, 2006). Second, lung cancer poses significant challenges for patients and their caregivers including aggressive medical treatments and an uncertain prognosis. In Address correspondence to: Laura S. Porter, Ph.D., 2200 West Main St, Suite 340, Durham, NC 27705, USA, email: laura.porter@duke.edu, telephone: 919-416-3436, fax: 919-416-3458.. Publisher's Disclaimer: This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final citable form. Please note that during the production process errors may be discovere...

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confidence: 61%

Section: Methodsmentioning

confidence: 99%

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Self-efficacy for managing pain, symptoms, and function in patients with lung cancer and their informal caregivers: Associations with symptoms and distress

Porter

Keefe

Garst

et al. 2008

Pain

234

187

View full text Add to dashboard Cite

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“…A scale elaborated to assess different symptoms and functions in cancer patients is the EORTC QLQ-30 (Aaronson et al 1993), with a special module meant for patients with lung cancer (QLQ-LC13) that includes a dyspnea scale measuring dyspnea in relation to effort (Bergman et al 1994). Dyspnea in patients with lung cancer has also been measured by Functional Assessment of Cancer Therapy with a supplement for lung cancer (Cella et al 1995) and the Lung Cancer Symptom Scale (Hollen et al 1993). The influence of dyspnea on daily life activities has been measured by the Shortness of Breath Questionnaire (Eakin et al 1998).…”

Section: Evaluation Of Dyspneamentioning

confidence: 99%

Validation of a Swedish Version of the Cancer Dyspnea Scale

Henoch

Bergman

Gaston‐Johansson

2006

Journal of Pain and Symptom Management

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“…The questionnaires have been developed to reflect patients' concerns, they are reliable, reproducible and have been validated in numerous studies. [3][4][5][6][7] One drawback with the FACT system (and with other investigator-derived QoL questionnaires) is the inability of individual patients to express a view about how important they consider the various QoL domains to be to their particular circumstances. Thus, if a subject has a very 'poor' functional well-being but does not consider this to be a particularly important contributor to his/her overall QoL, then this will not be suitably reflected in his/her FACT score.…”

Section: Introductionmentioning

confidence: 99%

Quality of life in patients with prostate cancer: development and application of a hybrid assessment method

Stone

Matar

et al. 2008

Prostate Cancer Prostatic Dis

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Investigator-derived quality of life (QoL) instruments such as the Functional Assessment of Cancer Therapy-Prostate (FACT-P) questionnaire do not allow participants to weight the relative importance of QoL domains. We investigated the effect of allowing patients the ability to weight the relative importance of the five areas included in the FACT-P (Physical, Social, Emotional and Functional well-being, and Additional concerns). Patients (n ¼ 150) completed the FACT-P and gauged the relative importance of each QoL domain using a direct-weighting approach. This was then used to provide an adjusted Hybrid QoL score. Patients also completed a Visual Analogue Scale. Patients considered Social well-being to be the most important domain and Additional concerns to be the least important. When patient weightings were taken into account overall QoL scores increased. The validity of the Hybrid score was supported by its ability to distinguish between patients with metastatic and locoregional disease and its ability to detect expected decreases in global QoL over time. Application of the direct-weighting approach to the FACT-P allows assessments to more accurately reflect individual QoL. Unadjusted QoL scores may lead researchers to incorrectly estimate the true QoL of respondents.

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Reliability and validity of the functional assessment of cancer therapy—lung (FACT-L) quality of life instrument

Cited by 687 publications

References 18 publications

Self-efficacy for managing pain, symptoms, and function in patients with lung cancer and their informal caregivers: Associations with symptoms and distress

Self-efficacy for managing pain, symptoms, and function in patients with lung cancer and their informal caregivers: Associations with symptoms and distress

Validation of a Swedish Version of the Cancer Dyspnea Scale

Quality of life in patients with prostate cancer: development and application of a hybrid assessment method

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