Factors associated with cognition in adults: The Seattle Longitudinal Study

Yu, Fang; Ryan, Lindsay H.; Schaie, K. Warner; Willis, Sherry L.; Kolanowski, Ann

2009-10

Citation: Yu, Fang; Ryan, Lindsay H.; Schaie, K. Warner; Willis, Sherry L.; Kolanowski, Ann (2009). "Factors associated with cognition in adults: The Seattle Longitudinal Study This research was supported in part by a grant from the National Institute on Aging (R37 AG08055) to K. Warner Schaie. Dr. Yu was supported by a NIH K12 Career Advancement Award (NIH RR023247-01) and Dr. Ryan was supported by a National Institute of Mental Health T32 training grant (#T32 MH18904). ." Research in Nursing & Health 32(5): 540-550. <http://hdl.handle.net/2027.42/64121>

Abstract: A better understanding of factors that affect cognition could lead to improved health and greater independence for older adults. We examined the association of four modifiable factors (leisure-time physical activity, leisure-time cognitive activity, self-directed work, and hypertension) with changes in two aspects of fluid intelligence (verbal memory and inductive reasoning). Data for 626 adults collected over 14 years (three time points) were analyzed by multi-level modeling. A component of self-directed work, higher work control, was associated with better verbal memory ( p < .05) and inductive reasoning ( p < .01). There were no significant interactions among these factors. The findings suggest that a strong sense of control at work may be protective for fluid intelligence in adults. © 2009 Wiley Periodicals, Inc. Res Nurs Health 32:540–550, 2009

ISSN: 0160-6891, 1098-240X

DOIs: 10.1002/nur.20340

Handle: http://hdl.handle.net/2027.42/64121

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