Avonne E Connor1,2, Richard N Baumgartner3, Christina M Pinkston3, Stephanie D Boone3, Kathy B Baumgartner3. 1. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Office E-6137, Baltimore, MD, USA. aconnor8@jhu.edu. 2. Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD, 21205, USA. aconnor8@jhu.edu. 3. Department of Epidemiology and Population Health, James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA.
Abstract
PURPOSE: The purpose of this study was to examine the relationship between obesity and quality of life (QOL) among Hispanic and non-Hispanic white breast cancer survivors and population-based controls from the 'Long-Term Quality of Life Study'--a 12- to 15-year follow-up study of breast cancer cases/survivors and controls from New Mexico (n = 451). METHODS: Using multiple linear regressions, obesity measures [body mass index (BMI) ≥ 30 kg/m(2)] at baseline and follow-up interview were modeled with composite scores for physical and mental health from the SF-36 Quality of Life Survey. Interaction between ethnicity and BMI and change in BMI were evaluated. All models were adjusted for age, ethnicity, Charlson Index, depression, fatigue, and physical activity. RESULTS: Baseline obesity (β = -6.58, p = 0.04) was significantly associated with decreased mental health among survivors, but not among controls. Obesity at baseline and follow-up were significantly associated with decreased physical health among survivors (baseline β = -10.51, p = 0.004; follow-up β = -7.16, p = 0.02) and controls (baseline β = -11.07, p < 0.001; follow-up β = -5.18, p = 0.04). No significant interactions between ethnicity and BMI were observed. CONCLUSIONS: Our findings provide unique information about a diverse population of breast cancer survivors and controls and the impact of obesity on the mental and physical aspects of QOL.
PURPOSE: The purpose of this study was to examine the relationship between obesity and quality of life (QOL) among Hispanic and non-Hispanic white breast cancer survivors and population-based controls from the 'Long-Term Quality of Life Study'--a 12- to 15-year follow-up study of breast cancer cases/survivors and controls from New Mexico (n = 451). METHODS: Using multiple linear regressions, obesity measures [body mass index (BMI) ≥ 30 kg/m(2)] at baseline and follow-up interview were modeled with composite scores for physical and mental health from the SF-36 Quality of Life Survey. Interaction between ethnicity and BMI and change in BMI were evaluated. All models were adjusted for age, ethnicity, Charlson Index, depression, fatigue, and physical activity. RESULTS: Baseline obesity (β = -6.58, p = 0.04) was significantly associated with decreased mental health among survivors, but not among controls. Obesity at baseline and follow-up were significantly associated with decreased physical health among survivors (baseline β = -10.51, p = 0.004; follow-up β = -7.16, p = 0.02) and controls (baseline β = -11.07, p < 0.001; follow-up β = -5.18, p = 0.04). No significant interactions between ethnicity and BMI were observed. CONCLUSIONS: Our findings provide unique information about a diverse population of breast cancer survivors and controls and the impact of obesity on the mental and physical aspects of QOL.
Entities:
Keywords:
Breast cancer; Hispanic Americans; Obesity; Quality of life
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