TY - JOUR PY - 2022// TI - Association of diabetes mellitus with gait and falls in community-dwelling older adults: serial mediation of vision and cognition JO - Archives of gerontology and geriatrics A1 - Han, Fulei A1 - Kong, Xiangjie A1 - Lv, Wenshan A1 - Li, Shiru A1 - Sun, Yanping A1 - Wu, Yili SP - e104827 EP - e104827 VL - 104 IS - N2 - BACKGROUND/OBJECTIVE: Diabetes mellitus (DM) is associated with walking performance, but potential underlying mechanisms of this association remain unclear. The present study aims to disentangle the pathways linking DM to gait and falls through the serial mediation effect of vision and cognition among the older population.

METHODS: Data were taken from wave 9 (2018-2019) of the English Longitudinal Study of Aging (ELSA), including 5496 participants aged 60 years and older. DM was identified based on medical diagnosis and laboratory tests. Vision and falls were self-reported. Cognition was evaluated using questionnaire. Gait speed was measured by the "timed walking test". Serial mediation analysis was performed using Mplus 8.3.

RESULTS: DM was associated with impaired gait speed (c = 0.085, P < 0.05) and falls (c = 0.061, P < 0.05). The serial mediation model revealed that vision and cognition significantly mediated the association of DM with impaired gait speed, with 17.97% and 23.60% of the total effects explained by vision and cognition respectively, and 3.37% explained by the path through vision and then cognition. Similarly, vision and cognition significantly mediated the association of DM with falls, with 14.99% and 6.67% of the total effects explained by vision and cognition respectively, and 1.67% explained by the path through vision and then cognition.

CONCLUSIONS: These findings contribute to deeper understanding of the mechanism underlying the association of DM with walking performance. Evaluation and intervention targeted at vision and the cognition may be beneficial for improving gait or reducing falls in older adults with DM.

Language: en

LA - en SN - 0167-4943 UR - http://dx.doi.org/10.1016/j.archger.2022.104827 ID - ref1 ER -