Association between smoking and obstructive sleep apnea based on the STOP-Bang index.

Smoking is a risk factor for respiratory diseases, and it worsens sleep quality due to nicotine stimulation and sudden nicotine withdrawal during sleep. This can increase the severity of OSA through alterations upper airway inflammation and neuromuscular function, arousal mechanisms, and sleep architecture. Therefore, it may lead to sleep-disrupted breathing, particularly obstructive sleep apnea (OSA).

Association between smoking behavior and serum uric acid among the adults: Findings from a national cross-sectional study.

Background: Gout incidence is increasing worldwide; appropriate management of serum uric acid levels and a healthy lifestyle may help its prevention. The popularity of electronic cigarettes and the resultant emergence of dual smokers is increasing. Despite many studies on the effects of various health behaviors on serum uric acid levels, the association between smoking and serum uric acid levels remains controversial.

Frailty transition and depression among community-dwelling older adults: the Korean Longitudinal Study of Aging (2006-2020).

Background: Frailty is recognized as a geriatric syndrome associated with depression. The consequences and mechanism of frailty transitions are still understudied. This study assessed the influence of frailty transitions on new-onset depressive symptomology using longitudinal, nationwide data of Korean community-dwelling older adults.

Association between Smoking and Periodontal Disease in South Korean Adults.

Smoking poses a threat to global public health. This study analyzed data from the 2016-2018 National Health and Nutrition Examination Survey to investigate smoking's impact on periodontal health and identify potential risk factors associated with poor periodontal health in Korean adults. The final study population was 9178 patients, with 4161 men and 5017 women.

Depression and oral health-related quality of life: A longitudinal study.

Objectives: Geriatric oral health-related quality of life is a relatively new but rapidly growing concept as it is directly related to the general wellbeing and self-esteem of older adults. This study assessed the impact of worsening depression symptoms on oral health-related quality of life using representative nationwide data of Korean older adults.

Methods: This study comprised a longitudinal sample of older adults aged ≥60 from the Korean Longitudinal Study of Aging (2016-2020).

Marital transition and cognitive function among older adults: the korean Longitudinal Study of Aging (2006-2020).

Background: Marital status has been suggested as an associated factor for cognitive impairment. The consequences of marital transitions are still understudied. This study evaluated the influence of marital transitions on cognitive function using longitudinal, nationwide data of Korean older adults.

Workplace Mistreatment and Health Conditions Prior and during the COVID-19 in South Korea: A Cross-Sectional Study.

Background: This study examined the relationship between workplace mistreatment, including discrimination, abuse, and overworking, and health problems among full-time workers prior to and during the coronavirus disease (COVID-19) outbreak in South Korea.

Methods: We analyzed data from the 2017 and 2020-2021 Korean Working Conditions Surveys, including the final sample of 44,425 participants. Multiple logistic regression was used to examine the relationship between workplace mistreatment and health problems among workers by gender.

The Association between Working Hours Flexibility and Well-Being Prior to and during COVID-19 in South Korea.

Objective: This study examined the relationship between the flexibility of work schedule arrangements and well-being among full-time workers prior to and after the coronavirus disease (COVID-19) outbreak in South Korea.

Methods: Data from the fifth 2017 and sixth 2020-2021 Korean Working Conditions Survey, including a final sample of 45,137 participants (22,460 males; 22,677 females), were used. Multiple logistic regression was performed to establish the association between schedule arrangement types and the 5-item World Health Organization Well-Being Index.