Sangchoon Jeon

Dr. Sangchoon Jeon

orcid

Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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21 September 2017 in Thorax
Verified
Journal Article
Open access
PDF file
AZAndrey Zinchuk
Andrey Zinchuk
SJSangchoon Jeon
Sangchoon Jeon
BKBrian B Koo
Brian B Koo
XYXiting Yan
Xiting Yan
DBDawn M Bravata
Dawn M Bravata
HYHenry K Yaggi
Henry K Yaggi
Background Obstructive sleep apnoea (OSA) is a heterogeneous disorder, and improved understanding of physiologic phenotypes and their clinical implications is needed. We aimed to determine whether routine polysomnographic data can be used to identify OSA phenotypes (clusters) and to assess the associations between the phenotypes and cardiovascular outcomes. Methods Cross-sectional and longitudinal analyses of a multisite, observational US Veteran (n=1247) cohort were performed. Principal components-based clustering was used to identify polysomnographic features in OSA’s four pathophysiological domains (sleep architecture disturbance, autonomic dysregulation, breathing disturbance and hypoxia). Using these features, OSA phenotypes were identified by cluster analysis (K-means). Cox survival analysis was used to evaluate longitudinal relationships between clusters and the combined outcome of incident transient ischaemic attack, stroke, acute coronary syndrome or death. Results Seven patient clusters were identified based on distinguishing polysomnographic features: ‘mild’, ‘periodic limb movements of sleep (PLMS)’, ‘NREM and arousal’, ‘REM and hypoxia’, ‘hypopnoea and hypoxia’, ‘arousal and poor sleep’ and ‘combined severe’. In adjusted analyses, the risk (compared with ‘mild’) of the combined outcome (HR (95% CI)) was significantly increased for ‘PLMS’, (2.02 (1.32 to 3.08)), ‘hypopnoea and hypoxia’ (1.74 (1.02 to 2.99)) and ‘combined severe’ (1.69 (1.09 to 2.62)). Conventional apnoea–hypopnoea index (AHI) severity categories of moderate (15≤AHI<30) and severe (AHI ≥30), compared with mild/none category (AHI <15), were not associated with increased risk. Conclusions Among patients referred for OSA evaluation, routine polysomnographic data can identify physiological phenotypes that capture risk of adverse cardiovascular outcomes otherwise missed by conventional OSA severity classification.

14 January 2019 in Development and Psychopathology
Verified
Journal Article
Closed access
PDF file
ASArietta Slade
Arietta Slade
MHMargaret L. Holland
Margaret L. Holland
MOMonica Roosa Ordway
Monica Roosa Ordway
ECElizabeth A. Carlson
Elizabeth A. Carlson
SJSangchoon Jeon
Sangchoon Jeon
LSLois S. Sadler
Lois S. Sadler
In this article, we describe the results of the second phase of a randomized controlled trial of Minding the Baby (MTB), an interdisciplinary reflective parenting intervention for infants and their families. Young first-time mothers living in underserved, poor, urban communities received intensive home visiting services from a nurse and social worker team for 27 months, from pregnancy to the child's second birthday. Results indicate that MTB mothers' levels of reflective functioning was more likely to increase over the course of the intervention than were those of control group mothers. Likewise, infants in the MTB group were significantly more likely to be securely attached, and significantly less likely to be disorganized, than infants in the control group. We discuss our findings in terms of their contribution to understanding the impacts and import of intensive intervention with vulnerable families during the earliest stages of parenthood in preventing the intergenerational transmission of disrupted relationships and insecure attachment.

13 August 2013 in Diabetes Care
Verified
Journal Article
Open access
PDF file
MGMargaret Grey
Margaret Grey
RWRobin Whittemore
Robin Whittemore
SJSangchoon Jeon
Sangchoon Jeon
KMKathryn Murphy
Kathryn Murphy
MFMelissa S. Faulkner
Melissa S. Faulkner
FGfor the TeenCope Study Group
for the TeenCope Study Group
OBJECTIVE The purpose of this study was to determine the efficacy of two Internet-based psycho-educational programs designed to improve outcomes for youth with type 1 diabetes transitioning to adolescence. RESEARCH DESIGN AND METHODS The study was a multisite clinical trial of 320 youth (aged 11–14 years; 37% minority; 55% female) randomized to one of two Internet-based interventions: TeenCope or Managing Diabetes. Primary outcomes were HbA1c and quality of life (QOL). Secondary outcomes included coping, self-efficacy, social competence, self-management, and family conflict. Data were collected at baseline and after 3, 6, and 12 months online. Youth were invited to cross over to the other program after 12 months, and follow-up data were collected at 18 months. Analyses were based on mixed models using intent-to-treat and per-protocol procedures. RESULTS Youth in both groups had stable QOL and minimal increases in HbA1c levels over 12 months, but there were no significant differences between the groups in primary outcomes. After 18 months, youth who completed both programs had lower HbA1c (P = 0.04); higher QOL (P = 0.02), social acceptance (P = 0.01), and self-efficacy (P = 0.03) and lower perceived stress (P = 0.02) and diabetes family conflict (P = 0.02) compared with those who completed only one program. CONCLUSIONS Internet interventions for youth with type 1 diabetes transitioning to adolescence result in improved outcomes, but completion of both programs was better than only one, suggesting that these youth need both diabetes management education and behavioral interventions. Delivering these programs via the Internet represents an efficient way to reach youth and improve outcomes.

1 November 2013 in Contemporary Clinical Trials
Verified
Journal Article
Closed access
SJSangchoon Jeon
Sangchoon Jeon
JWJohn T. Walkup
John T. Walkup
DWDouglas W. Woods
Douglas W. Woods
APAlan Peterson
Alan Peterson
JPJohn Piacentini
John Piacentini
LSLawrence Scahill
Lawrence Scahill

1 April 2013 in Journal of Adolescent Health
Verified
Journal Article
Closed access
RWRobin Whittemore
Robin Whittemore
SJSangchoon Jeon
Sangchoon Jeon
MGMargaret Grey
Margaret Grey

1 November 2015 in Journal of Palliative Medicine
Verified
Journal Article
Closed access
RMRuth McCorkle
Ruth McCorkle
SJSangchoon Jeon
Sangchoon Jeon
EEElizabeth Ercolano
Elizabeth Ercolano
MLMark Lazenby
Mark Lazenby
ARAmanda Reid
Amanda Reid
SGScott Gettinger
Scott Gettinger
Background: Early palliative care provided through a palliative care consultative service is effective in enhancing patient outcomes. However, it is unknown whether the integration of palliative care as part of routine comprehensive cancer care improves patients' self-reported clinical outcomes. Objective: The objective of this study was to evaluate the effects of a multidisciplinary coordinated intervention by advanced practice nurses at the clinic level on outcomes with patients newly diagnosed with late-stage cancer. Methods: A clustered, randomized, controlled trial design was used. Four disease-specific multidisciplinary clinics were randomized to the 10-week intervention (gynecologic and lung clinics) or to enhanced usual care (head and neck and gastrointestinal clinics). Patient primary outcomes (symptoms, health distress, depression, functional status, self-reported health) were collected at baseline and one and three months, and secondary outcomes were collected one and three months postbaseline. General linear mixed model analyses with a covariance structure of within-subject correlation was used to examine the intervention's effect. Results: The sample included 146 patients with newly diagnosed late-stage cancers. We found no differences between the two groups on the primary patient-reported outcomes at one and three months postbaseline; however, physical and emotional symptoms remained stable or significantly improved from baseline for both groups. Overall, secondary outcomes remained stable within the groups. Conclusion: In this translational study, we demonstrated that if patients newly diagnosed with late-stage cancer were managed by disease-specific multidisciplinary teams who palliated their symptoms, providing whole-patient care, patient outcomes remained stable or improved.