Médecine communautaire et éducation à la santé

Abstrait

Physical Activity and Depressive Symptoms in Advanced Age: LiLACS NZ

Mace C, Kerse N, Maddison R, Kepa M, Dyall L, Merritt-McDonald M, Jatrana S, Wham C and Pillai A

Background: Increased physical activity is associated with positive physical and mental health outcomes. The aim of this study was to assess the relationship between physical activity and depressive symptoms in advanced age people by gender and ethnicity in New Zealand.

Methods: We used cross sectional data from Life and Living in Advanced Age: A Cohort Study in New Zealand Te Puawaitanga o Nga Tapuwae Kia Ora Tonu (LiLACS NZ) (n=665, aged 83.66 ± 2.0) with a comprehensive set of demographic, physical and mental health indicators. Physical activity was assessed using the Physical Activity Scale for the Elderly (PASE), while the Geriatric Depression Scale (GDS) was used to measure depressive symptoms. Both bivariate and multivariable general linear regression models were used to examine the influence of demographic and health indicators in the relationship between physical activity and depressive symptoms. Analyses were conducted by gender and ethnicity.

Results: Higher levels of physical activity were associated with fewer depressive symptoms in non-Maori men (Beta=-0.001, p<0.01) and women (Beta=-0.006, p<0.01); however no significant associations were observed between these variables for Maori men or women.

Conclusion: Physical activity appears to be related to depressive symptoms in some people in advanced age; however differences exist by ethnicity and sex. Factors related to depression in older Maori men and women and in non-Maori women need further investigation.