Donghwan Lee
Biographic Data
| ID | 7779090 |
|---|---|
| NAME | Donghwan Lee |
| GIVEN NAMES | Donghwan |
| FAMILY NAME | Lee |
| SIGNATURE | LEE D |
| AFFILIATIONS | Ewha Womans University |
| ORCID | 0000-0002-3878-6876 |
| VERIFIED | Yes |
| TOTAL WORKS | 9 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 9 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2018 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 0 |
Return to Dilemma: A Novel Block Withholding Attack on PoW-Based Blockchains
Blockchain permeates nearly every facet of daily life, providing a crucial role in securely interweaving networked elements such as smart appliances and IoT devices. Proof-of-work (PoW) retains an undiminished status as one of the most adopted technologies in the blockchain industry for its trustworthiness and proportional fairness. Transactions will be safely committed and confirmed in a PoW-based blockchain scheme as long as a malevolent party …
Identification of Major Psychiatric Disorders From Resting-State Electroencephalography Using a Machine Learning Approach
We aimed to develop a machine learning (ML) classifier to detect and compare major psychiatric disorders using electroencephalography (EEG). We retrospectively collected data from medical records, intelligence quotient (IQ) scores from psychological assessments, and quantitative EEG (QEEG) at resting-state assessments from 945 subjects [850 patients with major psychiatric disorders (six large-categorical and nine specific disorders) and 95 health…
Medication Adherence and Persistence of Open-Angle Glaucoma Patients in Korea: A Retrospective Study Using National Health Insurance Claims Data
This study aimed to analyze medication adherence and persistence among open-angle glaucoma patients in Korea. A retrospective study was conducted using the Korean National Health Insurance (NHI) claims database from 2016 to 2019. Newly diagnosed open-angle glaucoma patients who were prescribed with the intraocular pressure (IOP)-lowering eyedrops were included. Adherence was measured using the medication possession ratio (MPR), and persistence wa…
Value Frameworks: Adaptation of Korean Versions of Value Frameworks for Oncology
This study sought to adapt the existing value framework (VF) to produce a reliable and valid Korean oncology VF. Two VFs developed by The American Society of Clinical Oncology (ASCO) and the European Society for Medical Oncology (ESMO) were selected for examination in the present study. Forward and backward translations were conducted for six high-priced drugs indicated for non-small-cell lung cancer and multiple myeloma. Inter-rater reliability …
Investigation of Correlated Internet and Smartphone Addiction in Adolescents: Copula Regression Analysis
Internet and smartphone addiction have become important social issues. Various studies have demonstrated their association with clinical and psychological factors, including depression, anxiety, aggression, anger expression, and behavioral inhibition, and behavioral activation systems. However, these two addictions are also highly correlated with each other, so the consideration of the relationship between internet and smartphone addiction can en…
A Meta-Regression Analysis of Utility Weights for Breast Cancer: The Power of Patients’ Experience
To summarize utility estimates of breast cancer and to assess the relative impacts of study characteristics on predicting breast cancer utilities. We searched Medline, Embase, RISS, and KoreaMed from January 1996 to April 2019 to find literature reporting utilities for breast cancer. Thirty-five articles were identified, reporting 224 utilities. A hierarchical linear model was used to conduct a meta-regression that included disease stages, assess…
The Burden of Cervical Cancer in Korea: A Population-Based Study
This study used the Korean National Health Insurance (NHI) claims database from 2011 to 2017 to estimate the incidence and the incidence-based cost of cervical cancer and carcinoma in situ of cervix uteri (CIS) in Korea. The primary outcome was the direct medical cost per patient not diagnosed with cervical cancer (C53) or CIS (D06) 2 years prior to the index date in the first year after diagnosis. A regression analysis was conducted to adjust fo…
Incidence, cost and gender differences of oropharyngeal and noncervical anogenital cancers in South Korea
Oropharyngeal cancer comprises the highest number of HPV-associated noncervical cancer incidences in Korea, and the incidence and cost of oropharyngeal cancer was significantly higher among males than females. More aggressive public health policy toward males may decrease gender gap of oropharyngeal cancer
Effects of Internet and Smartphone Addictions on Depression and Anxiety Based on Propensity Score Matching Analysis
The associations of Internet addiction (IA) and smartphone addiction (SA) with mental health problems have been widely studied. We investigated the effects of IA and SA on depression and anxiety while adjusting for sociodemographic variables. In this study, 4854 participants completed a cross-sectional web-based survey including socio-demographic items, the Korean Scale for Internet Addiction, the Smartphone Addiction Proneness Scale, and the sub…
No prominent works on this page.
Effects of Internet and Smartphone Addictions on Depression and Anxiety Based on Propensity Score Matching Analysis
The associations of Internet addiction (IA) and smartphone addiction (SA) with mental health problems have been widely studied. We investigated the effects of IA and SA on depression and anxiety while adjusting for sociodemographic variables. In this study, 4854 participants completed a cross-sectional web-based survey including socio-demographic items, the Korean Scale for Internet Addiction, the Smartphone Addiction Proneness Scale, and the sub…
Investigation of Correlated Internet and Smartphone Addiction in Adolescents: Copula Regression Analysis
Internet and smartphone addiction have become important social issues. Various studies have demonstrated their association with clinical and psychological factors, including depression, anxiety, aggression, anger expression, and behavioral inhibition, and behavioral activation systems. However, these two addictions are also highly correlated with each other, so the consideration of the relationship between internet and smartphone addiction can en…
A Meta-Regression Analysis of Utility Weights for Breast Cancer: The Power of Patients’ Experience
To summarize utility estimates of breast cancer and to assess the relative impacts of study characteristics on predicting breast cancer utilities. We searched Medline, Embase, RISS, and KoreaMed from January 1996 to April 2019 to find literature reporting utilities for breast cancer. Thirty-five articles were identified, reporting 224 utilities. A hierarchical linear model was used to conduct a meta-regression that included disease stages, assess…
The Burden of Cervical Cancer in Korea: A Population-Based Study
This study used the Korean National Health Insurance (NHI) claims database from 2011 to 2017 to estimate the incidence and the incidence-based cost of cervical cancer and carcinoma in situ of cervix uteri (CIS) in Korea. The primary outcome was the direct medical cost per patient not diagnosed with cervical cancer (C53) or CIS (D06) 2 years prior to the index date in the first year after diagnosis. A regression analysis was conducted to adjust fo…
Incidence, cost and gender differences of oropharyngeal and noncervical anogenital cancers in South Korea
Oropharyngeal cancer comprises the highest number of HPV-associated noncervical cancer incidences in Korea, and the incidence and cost of oropharyngeal cancer was significantly higher among males than females. More aggressive public health policy toward males may decrease gender gap of oropharyngeal cancer
Identification of Major Psychiatric Disorders From Resting-State Electroencephalography Using a Machine Learning Approach
We aimed to develop a machine learning (ML) classifier to detect and compare major psychiatric disorders using electroencephalography (EEG). We retrospectively collected data from medical records, intelligence quotient (IQ) scores from psychological assessments, and quantitative EEG (QEEG) at resting-state assessments from 945 subjects [850 patients with major psychiatric disorders (six large-categorical and nine specific disorders) and 95 health…
Medication Adherence and Persistence of Open-Angle Glaucoma Patients in Korea: A Retrospective Study Using National Health Insurance Claims Data
This study aimed to analyze medication adherence and persistence among open-angle glaucoma patients in Korea. A retrospective study was conducted using the Korean National Health Insurance (NHI) claims database from 2016 to 2019. Newly diagnosed open-angle glaucoma patients who were prescribed with the intraocular pressure (IOP)-lowering eyedrops were included. Adherence was measured using the medication possession ratio (MPR), and persistence wa…
Value Frameworks: Adaptation of Korean Versions of Value Frameworks for Oncology
This study sought to adapt the existing value framework (VF) to produce a reliable and valid Korean oncology VF. Two VFs developed by The American Society of Clinical Oncology (ASCO) and the European Society for Medical Oncology (ESMO) were selected for examination in the present study. Forward and backward translations were conducted for six high-priced drugs indicated for non-small-cell lung cancer and multiple myeloma. Inter-rater reliability …
Return to Dilemma: A Novel Block Withholding Attack on PoW-Based Blockchains
Blockchain permeates nearly every facet of daily life, providing a crucial role in securely interweaving networked elements such as smart appliances and IoT devices. Proof-of-work (PoW) retains an undiminished status as one of the most adopted technologies in the blockchain industry for its trustworthiness and proportional fairness. Transactions will be safely committed and confirmed in a PoW-based blockchain scheme as long as a malevolent party …
Medicine (7 works) · Internal Medicine (6 works) · Cancer (4 works) · Anxiety (3 works) · Clinical Psychology (3 works) · Clinical Psychology (3 works) · Computer Science (3 works) · Demography (3 works) · Demography (3 works) · Mathematics (3 works)