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Association between grit and insomnia: A population-based study

Authors
 Jae Rim Kim  ;  Jung-A Park  ;  Hong-Jik Kim  ;  Jee-Eun Yoon  ;  Dana Oh  ;  Hyo Jin Park  ;  Sang Min Paik  ;  Woo-Jin Lee  ;  Daeyoung Kim  ;  Kwang Ik Yang  ;  Min Kyung Chu  ;  Chang-Ho Yun 
Citation
 SLEEP MEDICINE, Vol.124 : 371-377, 2024-12 
Journal Title
SLEEP MEDICINE
ISSN
 1389-9457 
Issue Date
2024-12
MeSH
Adult ; Aged ; Aged, 80 and over ; Cross-Sectional Studies ; Female ; Humans ; Male ; Middle Aged ; Personality ; Republic of Korea / epidemiology ; Severity of Illness Index ; Sleep Initiation and Maintenance Disorders* / epidemiology ; Sleep Initiation and Maintenance Disorders* / psychology ; Surveys and Questionnaires
Keywords
Cognitive behavioral therapy for insomnia ; Cross-sectional study ; Grit ; Insomnia ; Personality traits
Abstract
Background: This study aimed to investigate the association of the grit scale, a personality trait characterized by perseverance and passion, with both the presence and the severity of insomnia in the Korean adult population.

Methods: A nationwide population-based cross-sectional survey was conducted through face-to-face interviews using structured questionnaires between September and December 2018 in Korea. Grit was assessed by using the 8-item Short Grit Scale. Participants were categorized into insomnia and non-insomnia groups based on a threshold of 10 on the Insomnia Severity Index (ISI). The association between girt and insomnia was analyzed using multiple linear regression and multivariable logistic regression, controlling for sociodemographic factors, lifestyles, and comorbidities.

Results: A total of 2453 participants (49.9 % male; aged 19-92 years) were enrolled in the study. Individual grit scores ranged from 1.75 to 5.00 points (mean [SD], 3.27 [0.42]), and insomnia was present in 16.5 % of the population. The insomnia group exhibited lower grit score compared to the non-insomnia group (3.11 [0.40] vs. 3.30 [0.42], p < 0.001, Cohen's d = 0.46). Grit was negatively associated with ISI scores (β = -0.15, 95 % CI = -0.19, -0.11, p < 0.001) and with having insomnia (OR 0.40, 95 % CI = 0.30, 0.55, p < 0.001), after controlling for covariates.

Conclusions: Individuals with higher grit were less likely to have insomnia. Clinicians should consider personality traits, such as grit, in the evaluation and the management of insomnia.
Full Text
https://www.sciencedirect.com/science/article/pii/S1389945724004726
DOI
10.1016/j.sleep.2024.10.006
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
Yonsei Authors
Chu, Min Kyung(주민경) ORCID logo https://orcid.org/0000-0001-6221-1346
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/201630
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