A longitudinal study of physical activity among Malaysian breast cancer survivors

Lee, Yi Lin and Islam, Tania and Danaee, Mahmoud and Mohd Taib, Nur Aishah and Grp, MyBCC Study (2022) A longitudinal study of physical activity among Malaysian breast cancer survivors. PLoS ONE, 17 (11). ISSN 1932-6203, DOI https://doi.org/10.1371/journal.pone.0277982.

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Abstract

Regular physical activity (PA) after a breast cancer diagnosis is associated with reduced mortality and better quality of life. In this prospective cohort study, we aimed to explore the trends of PA among breast cancer survivors over three years and identify factors associated with low PA. Interviews on 133 breast cancer patients were conducted at baseline, one and three years after the diagnosis of breast cancer at University Malaya Medical Centre in Kuala Lumpur. Physical activity was measured by using the Global Physical Activity Questionnaire. PA was categorised as active (>= 600 MET-min/week) and inactive (<600 MET-min/week). We used the generalised estimating equation method to examine PA levels and factors affecting PA longitudinally. The survivors' mean age was 56.89 (+/- 10.56) years; half were Chinese (50.4%), and 70.7% were married. At baseline, 48.1% of the patients were active, but the proportion of active patients declined to 39.8% at one year and 35.3% in the third year. The mean total PA decreased significantly from 3503 +/- 6838.3 MET-min/week to 1494.0 +/- 2679.8 MET-min/week (one year) and 792.5 +/- 1364 MET-min/week (three years) (p<0.001). Three years after diagnosis (adjusted odds ratio AOR]: 1.74, p = 0.021); Malay ethnicity (AOR: 1.86, p = 0.042) and being underweight (AOR: 3.43, p = 0.004) were significantly associated with inactivity. We demonstrated that breast cancer survivors in Malaysia had inadequate PA levels at diagnosis, which decreased over time. Thus, it is vital to communicate about the benefits of PA on cancer outcomes and continue to encourage breast cancer survivors to be physically active throughout the extended survivorship period, especially in the Malay ethnic group and underweight patients.

Item Type: Article
Funders: University of Malaya Research (UMRG) from the Ministry of Education, Malaysia RP046A-15HTM, Ministry of Education, Malaysia from the Ministry of Education, Malaysia UM.C/HIR/MOHE/06
Uncontrolled Keywords: Quality-of-life; Exercise Intervention; Women; Diagnosis; Health; Time
Subjects: R Medicine > RC Internal medicine
Divisions: Faculty of Medicine > Social & Preventive Medicine
Faculty of Medicine > Surgery Department
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 16 Oct 2023 04:37
Last Modified: 24 Oct 2023 03:00
URI: http://eprints.um.edu.my/id/eprint/40330

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