Cillian P McDowell1, Kathryn E Wilson2, Derek C Monroe3, Cathal McCrory4, Rose Anne Kenny5, Matthew P Herring6. 1. The Irish Longitudinal Study on Ageing, Trinity College Dublin, D02 R590 Ireland. Electronic address: cillian.mcdowell@tcd.ie. 2. Department of Kinesiology and Health, Georgia State University, Atlanta, GA, United States. 3. Department of Neurology, University of California, Irvine, CA, United States. 4. The Irish Longitudinal Study on Ageing, Trinity College Dublin, D02 R590 Ireland. 5. The Irish Longitudinal Study on Ageing, Trinity College Dublin, D02 R590 Ireland; Mercer's Institute for Successful Ageing, St James's Hospital, Dublin, Ireland. 6. Department of Physical Education and Sport Sciences, University of Limerick, Ireland; Physical Activity for Health Research Cluster, Health Research Institute, University of Limerick, Ireland.
Abstract
BACKGROUND: This study aimed to examine associations of personality with generalized anxiety disorder (GAD) and physical activity (PA), PA with GAD, and PA mediates associations between personality and incident GAD. METHODS: Participants aged ≥50 years completed the 60-item NEO-Five Factor Inventory questionnaire to assess personality and short-form International Physical Activity Questionnaire at baseline, and the Composite International Diagnostic Interview - Short Form to clinically assess GAD at baseline and 2, 4, and 6 years later. Participants who had GAD at baseline or reported having ever been told by a doctor that they had anxiety were excluded from analyses. Binary logistic regression quantified associations of the 'Big Five' personality traits with PA and incident GAD, and associations of PA with incident GAD (i.e., GAD at any point during follow-up). The 'counterfactual approach' identified potential mediating effects of PA in the associations between personality traits and incident GAD. RESULTS: Participants (n = 4582; 53.7% female) were aged 64.38±8.88 years. Incidence of GAD was 2.95% (n = 135). Extraversion (OR=1.160, 95%CI=1.087-1.237), openness (1.113, 1.043-1.188), and conscientiousness (1.083, 1.015-1.155) were positively associated with physical activity. Neuroticism was positively (2.335, 1.945-2.803), and extraversion (0.700, 0.563-0.797), conscientiousness (0.826, 0.693-0.985), and PA (0.655, 0.451-0.952) were inversely, associated with the incident GAD. Approximately 8.7% of the effect of extraversion and 8.8% of the effect of conscientiousness on GAD was due to mediation by PA only. LIMITATIONS: PA was self-reported Conclusions: Personality screening may help to identify older adults at-risk of anxiety who would benefit from participation in physical activity interventions.
BACKGROUND: This study aimed to examine associations of personality with generalized anxiety disorder (GAD) and physical activity (PA), PA with GAD, and PA mediates associations between personality and incident GAD. METHODS:Participants aged ≥50 years completed the 60-item NEO-Five Factor Inventory questionnaire to assess personality and short-form International Physical Activity Questionnaire at baseline, and the Composite International Diagnostic Interview - Short Form to clinically assess GAD at baseline and 2, 4, and 6 years later. Participants who had GAD at baseline or reported having ever been told by a doctor that they had anxiety were excluded from analyses. Binary logistic regression quantified associations of the 'Big Five' personality traits with PA and incident GAD, and associations of PA with incident GAD (i.e., GAD at any point during follow-up). The 'counterfactual approach' identified potential mediating effects of PA in the associations between personality traits and incident GAD. RESULTS:Participants (n = 4582; 53.7% female) were aged 64.38±8.88 years. Incidence of GAD was 2.95% (n = 135). Extraversion (OR=1.160, 95%CI=1.087-1.237), openness (1.113, 1.043-1.188), and conscientiousness (1.083, 1.015-1.155) were positively associated with physical activity. Neuroticism was positively (2.335, 1.945-2.803), and extraversion (0.700, 0.563-0.797), conscientiousness (0.826, 0.693-0.985), and PA (0.655, 0.451-0.952) were inversely, associated with the incident GAD. Approximately 8.7% of the effect of extraversion and 8.8% of the effect of conscientiousness on GAD was due to mediation by PA only. LIMITATIONS: PA was self-reported Conclusions: Personality screening may help to identify older adults at-risk of anxiety who would benefit from participation in physical activity interventions.