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Journal Article

Citation

Bravell ME, Finkel D, Dahl Aslan A, Reynolds CA, Hallgren J, Pedersen NL. Arch. Gerontol. Geriatr. 2017; 72: 6-11.

Affiliation

Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; Department of Psychology, University of Southern California, Los Angeles, USA.

Copyright

(Copyright © 2017, Elsevier Publishing)

DOI

10.1016/j.archger.2017.05.001

PMID

28500880

Abstract

INTRODUCTION: Research indicates gender differences in functional performance at advanced ages, but little is known about their impact on longevity for men and women.

OBJECTIVE: To derive a set of motor function factors from a battery of functional performance measures and examine their associations with mortality, incorporating possible gender interactions.

METHOD: Analyses were performed on the longitudinal Swedish Adoption/Twin Study of Aging (SATSA) including twenty-four assessments of motor function up to six times over a 19-year period. Three motor factors were derived from several factor analyses; fine motor, balance/upper strength, and flexibility. A latent growth curve model was used to capture longitudinal age changes in the motor factors and generated estimates of intercept at age 70 (I), rates of change before (S1) and after age 70 (S2) for each factor. Cox regression models were used to determine how gender in interaction with the motor factors was related to mortality.

RESULTS: Females demonstrated lower functional performance in all motor functions relative to men. Cox regression survival analyses demonstrated that both balance/upper strength, and fine motor function were significantly related to mortality. Gender specific analyses revealed that this was true for women only. For men, none of the motor factors were related to mortality.

CONCLUSION: Women demonstrated more difficulties in all functioning facets, and only among women were motor functioning (balance/upper strength and fine motor function) associated with mortality. These results provide evidence for the importance of considering motor functioning, and foremost observed gender differences when planning for individualized treatment and rehabilitation.

Copyright © 2017 Elsevier B.V. All rights reserved.


Language: en

Keywords

Gender differences; Motor function; Survival

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