Omar T Sims

Dr. Omar T Sims

University of Alabama at Birmingham, USA
orcid

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

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

Representative Publications

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26 March 2022 in Obesity Reviews
Verified
Journal Article
Open access
VSVictoria Salem
Victoria Salem
NANoara Alhusseini
Noara Alhusseini
HRHabeeb Ibrahim Abdul Razack
Habeeb Ibrahim Abdul Razack
ANAnastasia Naoum
Anastasia Naoum
OSOmar T Sims
Omar T Sims
SASaleh Alqahtani
Saleh Alqahtani
Summary: Saudi Arabia (SA) has a reported obesity prevalence greater than the global average. Here, we systematically review firstly the prevalence and associated factors (59 studies) and secondly the pharmacological, lifestyle, and surgical interventions for obesity (body mass index, >30 kg/m2) in SA (29 studies) between December 2020 and March 2021 in PubMed, Medline, Embase, PsycINFO, and Cochrane. Peer‐reviewed articles in Arabic and English on human adults (aged >18 years) were searched. Among the eight largest studies with sample sizes over 10,000 people, the maximum‐reported obesity prevalence was 35.6%, with notable variations in gender and geographic region. Diet, specifically the move towards Western diet and heavy consumption of sugary beverages, and high levels of inactivity are major contributing factors to obesity. The reported obesity‐risk polymorphisms are not specific. Bariatric surgery is underrepresented, and in general, there is a lack of nationally coordinated studies on weight loss interventions. In particular, the systematic review did not find a body of research on psychological interventions. There is no trial data for the use of GLP‐1 analogs in SA, despite their widespread use. These findings can help policymakers, and practitioners prioritize future research efforts to reduce obesity prevalence in SA.

OSOmar T Sims
Omar T Sims
JGJhumka Gupta
Jhumka Gupta
SMStacey A. Missmer
Stacey A. Missmer
IAIrene O. Aninye
Irene O. Aninye
Endometriosis is a chronic gynecological disease that affects approximately 1 in 10 women of reproductive age. Symptoms of severe pelvic pain, infertility, fatigue, and abnormal menstruation can cause significant negative effects on an individual’s physical and mental health, including interactions with their family, friends, and health care providers. Stigma associated with endometriosis has been under-studied and is rarely discussed in current literature. Herein, this paper aims to provide a brief overview of published literature to explore and establish the plausibility of stigma as a driver of suboptimal psychosocial well-being and diagnostic delay among individuals living with endometriosis. We present the clinical characteristics and physical and mental health consequences associated with endometriosis, highlight several theoretical constructs of stigma, and review the limited studies documenting women’s lived experiences of endometriosis-related stigma. To mitigate harmful effects of this phenomenon, we recommend increasing efforts to assess the prevalence of and to characterize endometriosis-related stigma, implementing awareness campaigns, and developing interventions that combat the multidimensional negative effects of stigma on timely care, treatment, and quality of life for individuals living with endometriosis.

21 January 2021 in Behavioral Sciences
Verified
Journal Article
Open access
PDF file
YGYuqi Guo
Yuqi Guo
OSOmar T Sims
Omar T Sims
WQWeidi Qin
Weidi Qin
FYFan Yang
Fan Yang
The objective of this study was to examine factors associated with symptoms of depression and psychological distress during the COVID-19 pandemic in China. Convenience sampling and snowball sampling were used to recruit a sample of adults in China (n = 2130) from 14 February 2020 to 3 March 2020 to complete an online survey. Linear regression was used to examine the predictors of symptoms of depression and psychological distress. Living in a non-urban area and the number of confirmed cases in their city of residence were positively associated with symptoms of depression. Female gender, not being married, practicing social distancing, the amount of time spent daily on social media searching for and reading information on COVID-19, the number of confirmed cases of COVID-19 in their city of residence, and having confirmed or suspected cases of COVID-19 in personal networks were positively associated with psychological distress. Social distancing is a widely used public health approach for population-wide virus-containment of COVID-19. However, reductions in population-wide psychological well-being are inadvertent consequences of social distancing. There is an emerging need to negate factors that increase adverse mental health vulnerabilities during the COVID-19 pandemic.

YGYuqi Guo
Yuqi Guo
AKAndrea R. Kaniuka
Andrea R. Kaniuka
JGJingjing Gao
Jingjing Gao
OSOmar T Sims
Omar T Sims
The purpose of this longitudinal study was to examine associations between per capita income, unemployment rates, and COVID-19 vaccination rates at the county-level across the United States (U.S.), as well as to identify the interaction effects between county-level per capita income, unemployment rates, and racial/ethnic composition on COVID-19 vaccination rates. All counties in the U.S. that reported COVID-19 vaccination rates from January 2021 to July 2021 were included in this longitudinal study (n = 2857). Pooled ordinary least squares (OLS) with fixed-effects were employed to longitudinally examine economic impacts on racial/ethnic disparities on county-level COVID-19 vaccination rates. County-level per capita income and county-level unemployment rates were both positively associated with county-level COVID-19 vaccination rates across the U.S. However, the associations were divergent in the context of race/ethnicity. Public health efforts to bolster COVID-19 vaccination rates are encouraged to consider economic factors that are associated with decreases in COVID-19 vaccination rates.

1 February 2025 in Hepatology Communications
Verified
Journal Article
Open access
SSShreya Sengupta
Shreya Sengupta
AAAkhil Anand
Akhil Anand
QYQijun Yang
Qijun Yang
MRMeghan Reagan
Meghan Reagan
MHMariah Husted
Mariah Husted
JMJessica L. Mellinger
Jessica L. Mellinger
Background: We analyzed early outcomes regarding the impact of our integrated alcohol-associated liver disease (ALD) clinic on patients with ALD and alcohol use. Methods: We conducted a retrospective study of patients with ALD who were evaluated in our integrated clinic from May 1, 2022, to December 31, 2023. Primary outcomes included differences in baseline clinical/demographic data between patients who accepted versus declined an appointment and changes in the severity of ALD, alcohol consumption, functional status, hospital utilization, and remission in alcohol use disorder for evaluated patients. Results: Patients who declined appointments (n=66) had higher median no-show rates (15.0 [8.0,30.0] vs. 8.5 [3.25,15.0], p <0.001), social vulnerability index (0.53 [0.26,0.79] vs. 0.38 [0.17,0.63], p =0.033), and proportions of cirrhosis (78.8% vs. 59.8%, p =0.017) versus evaluated patients. Comparison of baseline to first follow-up visit for evaluated patients (n=102) demonstrated significant reductions in median AST (59.5 [41.75, 89] vs. 44.5 [33.5, 56.25], p <0.001), alanine-aminotransferase (33.5 [20,45.25] vs. 26.5 [18.75,33.0], p =0.017), total bilirubin (1.6 [0.7,3.3] vs. 1 [0.5,1.9], p= 0.001), phosphatidylethanol (263 [35, 784] vs. 0 [0, 163], p <0.001), MELD-3.0 and Sodium scores for patients with alcohol-associated hepatitis and cirrhosis (16 [11, 18.75] vs. 12 [9, 14], p <0.001), 14 [9.25, 17.75] vs. 11 [8.5, 14], p <0.001), and Child-Turcotte-Pugh scores for patients with cirrhosis (9 [6, 10.5] vs. 7 [6, 9], p <0.001). The proportion of patients with active-severe alcohol use disorder significantly decreased (85.2% vs. 51.9%, p <0.001). Additionally, patients had significant reductions in emergency department utilization (incidence rate ratio of 0.64 emergency department visits/month ( p =0.002) and 0.71 hospital admissions/month ( p =0.025). However, after considering the false discovery rate, the reduction in hospitalization admissions/month was not statistically significant (False Discovery Rate adjusted p =0.056). Conclusions: Our integrated approach led to reductions in liver injury, degree of liver decompensation, alcohol use, and ED utilization, and remission in AUD in a population of both non-transplant ALD and post-transplant patients.

13 November 2020 in JMIR Formative Research
Verified
Journal Article
Open access
NBNasser F BinDhim
Nasser F BinDhim
Nora AlthumiriNora Althumiri
Nora Althumiri
MBMada H Basyouni
Mada H Basyouni
OSOmar T Sims
Omar T Sims
NANoara Alhusseini
Noara Alhusseini
SASaleh Alqahtani
Saleh Alqahtani
Background: While it is most often associated with its effects on physical health, obesity is also associated with serious self-stigmatization. The lack of a suitable, validated tool to measure weight-related self-stigma in Arabic countries may be partly responsible for the scarcity of literature about this problem. Objective: This study investigated the reliability and validity of an Arabic version of the Weight Self-Stigma Questionnaire (WSSQ). Methods: Data on the Arabic-translated version of the 12-item WSSQ were collected using two cross-sectional electronic questionnaires distributed among Saudi nationals through the Sharik Association for Health Research’s database in June 2020. Internal consistency, test-retest reliability, and exploratory factor analysis of the Arabic WSSQ were assessed and compared with the original English version and other translations. Results: For reliability analysis, 43 participants completed the Arabic WSSQ during two time periods. Internal consistency was α=.898 for the overall survey, α=.819 for the fear of enacted stigma subscale (factor 1), and α=.847 for the self-devaluation subscale (factor 2). The test-retest reliability of the intraclass correlation coefficient was α=.982. In the factor structure analysis, 295 participants completed the questionnaire. The Arabic WSSQ loading of the items was consistent with the original WSSQ, except for the loading of item 9, which was stronger in factor 2 than in factor 1. The two factors accounted for the observed variances of 47.7% and 10.6%. Conclusions: The Arabic version of the WSSQ has good internal consistency and reliability, and the factorial structure is similar to that of the original WSSQ. The Arabic WSSQ is adaptable for clinicians seeking to assess weight-related self-stigma in Arabic-speaking people.