Lifetime Physical Activity and Breast Cancer: a Case-Control Study in Kelantan, Malaysia

Yen, Siew Hwa; Knight, A; Krishna, MBV; Muda, WMW; Rufai, AA

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저자정보: Yen, Siew Hwa (School of Distance Education, Universiti Sains Malaysia) Knight, A (Advanced Medical and Dental Institute, Universiti Sains Malaysia) Krishna, MBV (Department of Oncology, Hospital Universiti Sains Malaysia) Muda, WMW (School of Health Sciences, Universiti Sains Malaysia, Health Campus) Rufai, AA (School of Health Sciences, Universiti Sains Malaysia, Health Campus)

저널정보: 아시아태평양암예방학회 Asian Pacific journal of cancer prevention : APJCP Asian Pacific journal of cancer prevention : APJCP 제17권 제8호

발행연도: 2016.1

수록면: 4,083 - 4,088 (6page)

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Background: Physical inactivity has been identified as the fourth leading risk factor for global mortality and is associated with increased breast cancer diagnosis and recurrence. Purpose: To examine the association between adult lifetime physical activity and breast cancer risk in a case-control analysis. Materials and Methods: This study involved 122 cases of breast cancer and 121 controls in the state of Kelantan in Malaysia. A comprehensive measure of lifetime physical activity was used to assess occupational, household, and recreational/sports activity. For every type of activity, a metabolic equivalent (MET) score was assigned using the compendium of physical activities. MET-hours/week per year for all types of activities at different levels of intensities for different age groups were calculated. Logistic regression analysis was used to estimate odds ratios between various measures of physical activity and breast cancer risk. Conclusions: The mean MET-hours/week per year for all activities were 120.0 and 132.9 of MET-hours/week per year for cases and controls respectively. Household activities accounted for about 70% of the total lifetime physical activities. Only about 2.5% of the total lifetime physical activities were in the form of recreational/sports. This study found no association between lifetime occupational and recreational/sports physical activities with breast cancer risk among Kelantanese women. However, higher intensity lifetime household activities seemed to significantly reduce risk of breast cancer.

#Lifetime physical activity #breast cancer #metabolic equivalent score #Malaysia

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