Validating the Digital Health Literacy Instrument in Relation to COVID-19 Information (COVID-DHL-K) among South Korean Undergraduates.

Digital health literacy is crucial in accessing and applying health information in the COVID-19 pandemic period. Young college students are exposed daily to digital technologies, and they have further increased the use of digital information during the COVID-19 period. This study aimed to adapt DHLI into Korean and to assess the psychometric properties, during the COVID-19 pandemic period.

Who Benefits from the Fixed Copayment of Medical and Pharmaceutical Expenditure among the Korean Elderly?

The Korean National Health Insurance system imposes a 30% coinsurance for outpatient medical care and prescription drugs; however, at the age of 65, the coinsurance model changes to a copayment model that offers lower fees for the elderly. Thus, this study aimed to investigate the influence of the copayment model for outpatient visits and prescription drugs on healthcare utilization among the Korean elderly. We compared total outpatient visits, total prescriptions, and out-of-pocket expenses between a case group with copayment reduction (65 years or older) and a control group without any reduction (64 years or younger).

Attitudes of Korean smokers towards smoke-free public places: findings from the longitudinal ITC Korea Survey, 2005-2010.

Objective: Prior to December 2012, restaurants in South Korea were required to implement only partial smoking bans. This study documents the changes in Korean smokers' attitudes towards smoking bans between 2005 and 2010 and explores the effects of anti-smoking advertising as a correlate of support for total smoking bans in public places.

Design: Longitudinal cohort study of Korean adult smokers.

Caregiving for Community-Dwelling Older Persons in South Korea: Current Formal and Informal Care Use and Expectation.

The aim of this study is to examine formal and informal care use among community-dwelling older Korean adults. Older adults aged between 65 and 85 ( = 516) in mid-size city, selected using the probability proportional sampling method, were interviewed in person. One third reported having at least one caregiver.

The impact of differential cost sharing of prescription drugs on the use of primary care clinics among patients with hypertension or diabetes.

Objectives: Since 2011, the Korean government has implemented differential cost sharing to increase the utilization of primary care clinics for the management of chronic diseases. The objective of this study was to examine the impact of the prescription drug cost-sharing increase on outpatients' selection of the medical care institution.

Study Design: This was a pre-post comparison study.

Weight control behaviors according to body weight status and accuracy of weight perceptions among Korean women: a nationwide population-based survey.

This study aimed to identify associations among self-perceived weight status, accuracy of weight perceptions, and weight control behaviors, including both healthy and unhealthy behaviors, in a large, nationally representative sample from an East Asian country. Data were collected from the 2016 Korean Study of Women's Health Related Issues, a population-based, nationwide survey. Accurate weight perceptions were investigated by comparing body mass index (BMI) categories, based on self-reported height and weight, and weight perceptions.

Development of a transformation model to derive general population-based utility: Mapping the pruritus-visual analog scale (VAS) to the EQ-5D utility.

Rationale, Aims, And Objectives: Although nonpreference-based disease-specific measures are widely used in clinical studies, they cannot generate utilities for economic evaluation. A solution to this problem is to estimate utilities from disease-specific instruments using the mapping function. This study aimed to develop a transformation model for mapping the pruritus-visual analog scale (VAS) to the EuroQol 5-Dimension 3-Level (EQ-5D-3L) utility index in pruritus.

Oral Bisphosphonates and Upper Gastrointestinal Cancer Risks in Asians with Osteoporosis: A Nested Case-Control Study Using National Retrospective Cohort Sample Data from Korea.

Background: Bisphosphonate can irritate the gastrointestinal mucosa and increase the risk of esophageal or gastric cancer. The relatively high prevalence of upper gastrointestinal cancers and the widespread use of bisphosphonate in Korea call for further investigation. We conducted a case-control study to evaluate the risk of esophageal or gastric cancer after exposure to oral bisphosphonates in Korean patients with osteoporosis.

What cigarette price is required for smokers to attempt to quit smoking? Findings from the ITC Korea Waves 2 and 3 Survey.

Objectives: We assess the cigarette price that would motivate smokers to quit. We also explore the factors associated with the required price, including exposures to non-tax tobacco control policies.

Methods: Cross-sectional analysis was conducted on data from 1257 male smokers, who participated in either Wave 2 or 3 of the ITC Korea Survey.

Living arrangements, chronic diseases, and prescription drug expenditures among Korean elderly: vulnerability to potential medication underuse.

Background: Insufficient social security combined with family structure changes has resulted in a poverty of the elderly. The objective of this study was to examine an association of living arrangements of the elderly with chronic disease prevalence and prescription drug use.

Methods: 2008 Korea Health Panel Survey (KHPS) data were used in this study.

The utility score of epilepsy with partial seizure measured by TTO, VAS, and EQ-5D in the general Korean population.

Purposes: This study aimed to measure utilities, which are quantitative terms incorporating preferences, for various health states of epilepsy with partial seizure in the general population in South Korea. It also aimed to find socio-demographic characteristics associated with the utility scores.

Methods: Utility scores using Time Trade-Off (TTO), Visual Analog Scale (VAS), and EuroQol five Dimension (EQ-5D) were obtained from 300 people aged 16 and over by face-to-face interviews.

Poor health in the Korean older population: age effect or adverse socioeconomic position.

The objective of this study was to examine the impact of socioeconomic status and age on poor health among elderly people. Data were taken from the 2006 baseline survey of the Korean Longitudinal Study of Aging (KLoSA). We compared self-rated poor health, depressive symptoms, chronic disease, and disability in middle-aged (age 45-64), old (age 65-74), and very old (age 75-105) individuals.

Area deprivation, individual socioeconomic position and smoking among women in South Korea.

Background: The objective of this study was to examine how area deprivation and individual socioeconomic position affect smoking among women using national survey data.

Methods: Smoking and individual sociodemographic characteristics were gathered from the Third Korea National Health and Nutrition Examination Survey, 2005. The Carstairs index was derived for each area using the 2005 census data.

[Assessment of applicability of standardized rates for health state comparison among areas: 2008 Community Health Survey].

Objectives: This study shows the issues that should be considered when applying standardized rates using Community Health Survey(CHS) data.

Methods: We analyzed 2008 CHS data. In order to obtain the reliability of standardized rates, we calculated z-score and rank correlation coefficients between direct standardized rate and indirect standardized rate for 31 major indices.

Effect of Cimetidine and Phenobarbital on metabolite kinetics of Omeprazole in rats.

Omeprazole (OMP) is a proton pump inhibitor used as an oral treatment for acid-related gastrointestinal disorders. In the liver, it is primarily metabolized by cytochrome P-450 (CYP450) isoenzymes such as CYP2C19 and CYP3A4. 5-Hyroxyomeprazole (5-OHOMP) and omeprazole sulfone (OMP-SFN) are the two major metabolites of OMP in human.