Timothy Chen

Dr. Timothy Chen

orcid

Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

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

Representative Publications

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14 November 2013 in Health Promotion Practice
Verified
Journal Article
Closed access
TCTimothy Chen
Timothy Chen
RKRashid Kazerooni
Rashid Kazerooni
EVErin M. Vannort
Erin M. Vannort
KNKhanh Nguyen
Khanh Nguyen
SNStacey Nguyen
Stacey Nguyen
MBMark Bounthavong
Mark Bounthavong
Purpose. To evaluate the effectiveness of the Pharmacist-Managed Telephone Tobacco Cessation Clinic (PMTTCC) compared to the standard of care (SOC) at the Veterans Affairs San Diego Healthcare System. Method. A retrospective cohort study was performed investigating the proportion of veterans who quit smoking at 6 months while enrolled in the PMTTCC. Chart review was performed using the Veterans Affairs Computerized Patient Record System. The PMTTCC group included patients who had received medication and counseling from the tobacco cessation pharmacists. The cohort was compared to a matched SOC group who did not receive counseling, only tobacco cessation medication therapy through a primary care provider. The primary outcome for this study was patient-reported tobacco cessation at 6 months. Secondary outcomes were abstinence at 1 and 3 months. Results. A total of 1,006 patients were included in the analysis, 503 patients from the PMTTCC and 503 patients from SOC. The overall study population was 54 years old on average, 92.5% male, 70.0% Caucasian, 45.5% with history of psychiatric conditions, and had an average smoking history of 33-pack years. Patients in the PMTTCC group had statistically significant improvements in abstinence at 6 months versus the SOC group (81/503, 16.1% vs. 48/503, 9.5%; p < .0001). Quitters were older on average versus non-quitters (56.03 vs. 53.65 years; p = .01). Conclusion. Patients enrolled in the PMTTCC had improved tobacco abstinence rates at 6 months compared to SOC. Although the study was not designed to test for causality, the results lend support for using intensive tobacco cessation management in veteran population.

1 April 2017 in Preventive Medicine
Verified
Journal Article
Closed access
Stephanie Lynn HsiaStephanie Lynn Hsia
Stephanie Lynn Hsia
MMMark G. Myers
Mark G. Myers
TCTimothy Chen
Timothy Chen

27 July 2024 in Australian & New Zealand Journal of Psychiatry
Verified
Journal Article
Open access
TCTimothy Chen
Timothy Chen
CLColleen K Loo
Colleen K Loo
LSLuis Salvador-Carulla
Luis Salvador-Carulla
LJLouisa R Jorm
Louisa R Jorm
PSPreeyaporn Srasuebkul
Preeyaporn Srasuebkul
BGBlanca Gallego
Blanca Gallego
Objective: To identify factors associated with receiving electroconvulsive therapy (ECT) for serious psychiatric conditions. Methods: Retrospective observational study using hospital administrative data linked with death registrations and outpatient mental health data in New South Wales (NSW), Australia. The cohort included patients admitted with a primary psychiatric diagnosis between 2013 and 2022. The outcome measure was receipt of ECT. Results: Of 94,950 patients, 3465 (3.6%) received ECT. The likelihood of receiving ECT was higher in older (hazard ratio [HR] = 1.03), female (HR = 1.24) patients. Compared to depression, patients with schizophrenia/schizoaffective disorder (HR = 0.79), schizophrenia-related disorders (HR = 0.37), mania (HR = 0.64) and other mood disorders (HR = 0.45) had lower odds of receiving ECT. Patients with depression and one other serious psychiatric condition had higher odds of receiving ECT than depression alone. Bipolar disorder likelihood of ECT did not differ from depression. A higher number of mental health outpatient visits in the prior year and an involuntary index admission with depression were also associated with receiving ECT. Likelihood of receiving ECT increased with year of admission (HR = 1.32), private patient status (HR = 2.06), higher socioeconomic status (HR = 1.09) and being married (HR = 1.25). Conclusions: ECT use for depression and bipolar disorder in NSW aligns with clinical national guidelines. Patients with schizophrenia/schizoaffective, schizophrenia-related disorders, mania and other mood disorders had lower likelihood of ECT than depression, despite ECT being recommended by clinical guidelines for these diagnoses. Variations in ECT were strongly associated with healthcare access, with private patients twice as likely to receive ECT than their public counterparts, suggesting a need to explore ECT accessibility.

22 July 2015 in The Journal of Clinical Psychiatry
Verified
Journal Article
Closed access
PDF file
TCTimothy Chen
Timothy Chen
MMMark G. Myers
Mark G. Myers
From The Journal of Clinical Psychiatry:

18 March 2014 in Journal of Telemedicine and Telecare
Verified
Journal Article
Closed access
TCTimothy Chen
Timothy Chen
DCDana E Christofferson
Dana E Christofferson
KHKim Hamlett-Berry
Kim Hamlett-Berry
RKRashid Kazerooni
Rashid Kazerooni
MBMark Bounthavong
Mark Bounthavong
MMMark Myers
Mark Myers

8 October 2026 in British Journal of Dermatology
Verified
Journal Article
Closed access
TCTimothy Chen
Timothy Chen
HVHeather Varcoe
Heather Varcoe
GLGeoffrey Lee
Geoffrey Lee
In a retrospective cohort of 100 patients commencing dupilumab for atopic dermatitis, Strongyloides serology was positive or equivocal in 6%, with immunocompromised status strongly associated with seroreactivity. Although no hyperinfection or disseminated strongyloidiasis occurred over 319.6 patient-years, our findings support continued routine pretreatment screening and prophylaxis while prospective multicentre evidence and formal guidelines remain lacking.