Emmanuel S. Baja

ORCID: 0000-0002-3888-8880
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About
Contact & Profiles
Research Areas
  • Air Quality and Health Impacts
  • HIV/AIDS Research and Interventions
  • HIV, Drug Use, Sexual Risk
  • Climate Change and Health Impacts
  • HIV Research and Treatment
  • Mosquito-borne diseases and control
  • LGBTQ Health, Identity, and Policy
  • Air Quality Monitoring and Forecasting
  • COVID-19 and Mental Health
  • Heavy Metal Exposure and Toxicity
  • Global Maternal and Child Health
  • COVID-19 Impact on Reproduction
  • SARS-CoV-2 detection and testing
  • Long-Term Effects of COVID-19
  • COVID-19 epidemiological studies
  • Wind and Air Flow Studies
  • COVID-19 and healthcare impacts
  • COVID-19 Clinical Research Studies
  • Psychological Well-being and Life Satisfaction
  • Viral Infections and Vectors
  • Vaccine Coverage and Hesitancy
  • Sexuality, Behavior, and Technology
  • vaccines and immunoinformatics approaches
  • Health, Environment, Cognitive Aging
  • Cardiac electrophysiology and arrhythmias

University of the Philippines Manila
2016-2025

University of Manila
2022

Liverpool School of Tropical Medicine
2019

University of the Philippines System
2019

University of North Carolina at Chapel Hill
2009

Harvard University
2008

Introduction The COVID-19 pandemic declared by the WHO has affected many countries rendering everyday lives halted. In Philippines, lockdown quarantine protocols have shifted traditional college classes to online. abrupt transition online may bring psychological effects students due continuous isolation and lack of interaction with fellow teachers. Our study aims assess Filipino students’ mental health status estimate effect pandemic, shift learning, social media use on health. addition,...

10.1371/journal.pone.0267555 article EN cc-by PLoS ONE 2022-05-03

BackgroundAcute exposure to ambient air pollution has been associated with acute changes in cardiac outcomes, often within hours of exposure.ObjectivesWe examined the effects pollutants on heart-rate–corrected QT interval (QTc), an electrocardiographic marker ventricular repolarization, and whether these associations were modified by participant characteristics genetic polymorphisms related oxidative stress.MethodsWe studied repeated measurements QTc 580 men from Veterans Affairs Normative...

10.1289/ehp.0901396 article EN public-domain Environmental Health Perspectives 2010-03-01

Highly Urbanized Cities (HUCs) in the Philippines were at forefront of public health surveillance and response during COVID-19 pandemic response. With rapid spread to Philippine cities, local government units continuously assessed, adapted, implemented interventions (PHIs), depended on available open-source data (OSGD). This study consolidated PHIs selected HUCs using high quality OSGD create a timeline document good practices control. resources collected from February 2020 January 2023, was...

10.20944/preprints202501.1860.v1 preprint EN 2025-01-26

To estimate the main and interaction effects of axial spondyloarthritis (axSpA) subtype sex on first biologic disease-modifying antirheumatic drug (bDMARD) discontinuation. This retrospective cohort study included nonradiographic axSpA (nr-axSpA) radiographic (r-axSpA) patients initiating tumour necrosis factor or interleukin-17 inhibitors. Modified Poisson regressions were used to risk ratios (RRs) for association with discontinuation, adjusting baseline covariates. Interaction was assessed...

10.1016/j.ard.2025.01.007 article EN Annals of the Rheumatic Diseases 2025-02-01

Despite the enactment of mental health law, illness in Philippines is third most prevalent form morbidity; hence, screening warranted, especially among Filipino emerging adults. This exploratory spatial analysis study aimed to identify clusters depression, anxiety, and stress A convenience sampling online self-administered survey was used collect data from 18 29 Filipinos (n = 2729) Philippines. The Depression Anxiety Stress Scales-21 utilized ascertain participant's level stress....

10.1093/pubmed/fdaf024 article EN Journal of Public Health 2025-03-01

Highly Urbanized Cities (HUCs) in the Philippines were at forefront of public health surveillance and response during COVID-19 pandemic. With rapid spread to Philippine cities, local government units continuously assessed, adapted, implemented interventions (PHIs) depended on available open-source data (OSGD). This study consolidated PHIs selected HUCs using high-quality OSGD create a timeline document good practices control. resources collected from February 2020 January 2023, quality was...

10.3390/covid5030042 article EN cc-by COVID 2025-03-19

Objective The study aimed to demonstrate the feasibility of an unassisted and community-based HIV self-testing (HIVST) distribution model evaluate its acceptability among men-having-sex-with-men (MSM) transgender women (TGW). Methods Our demonstration focused on implementing HIVST in Metro Manila, Philippines. Convenience sampling was done with following inclusion criteria: MSM or TGW, at least 18 years old, had no previous diagnosis. Individuals taking pre-exposure prophylaxis,...

10.1371/journal.pone.0282644 article EN cc-by PLoS ONE 2023-03-09

High-level arsenic exposure is consistently associated with QT prolongation, a risk factor for arrhythmia and sudden cardiac death. Arsenic may act on by increasing calcium currents. The authors hypothesized that low-level would be duration this effect stronger among persons not using channel blockers. They performed cross-sectional analysis in elderly men from the Normative Aging Study to analyze associations between toenail heart rate-corrected (QTc) durations examine modification blocker...

10.1093/aje/kwp191 article EN American Journal of Epidemiology 2009-08-21

Abstract Background The Philippines is facing a rapidly rising HIV epidemic among young men who have sex with (MSM). Testing rates populations poor. self-testing (HIVST) promising strategy to address this testing gap. study’s purpose was explore the perceived acceptability, feasibility and programmatic challenges of HIVST key informants target users. Method A qualitative study involving semi-structured interviews focus group discussions (FGD). We interviewed 15 involved programs or policies...

10.1186/s12889-019-8063-8 article EN cc-by BMC Public Health 2020-01-09

The major causes of maternal and neonatal mortality in the Philippines are hemorrhages obstructed labor due to placental implantation abnormalities (PIAs), twin pregnancies fetal malpresentations. All which all easily detected by ultrasound. However, women rural areas low-income groups do not have access ultrasound during their prenatal care. We aimed provide additional evidence on benefits handheld (HU) for screening pregnancy related order avert deaths.Using a HU, we trained community...

10.1186/s12884-018-1658-8 article EN cc-by BMC Pregnancy and Childbirth 2018-01-18

Over 60 countries have integrated wastewater-based epidemiology (WBE) in their COVID-19 surveillance programs, focusing on wastewater treatment plants (WWTP). In this paper, we piloted the assessment of SARS-CoV-2 WBE as a complementary public health method susceptible communities highly urbanized city without WWTP Philippines by exploring extraction and detection methods, evaluating contribution physico-chemical-anthropogenic factors, attempting whole-genome sequencing (WGS). Weekly samples...

10.3390/ijerph19148789 article EN International Journal of Environmental Research and Public Health 2022-07-19

The rampant distribution of idealised images on the internet may lead general public to improve their body appearance in a way that is sometimes excessive, compulsive or detrimental other aspects lives. There decreasing appreciation image among emerging adults and an increasing trend skin-lightening practices linked with psychological distress. This protocol describes mixed-method approach assess relationships perception, mental well-being Filipino determine factors influence them.

10.1136/bmjopen-2022-068561 article EN cc-by-nc BMJ Open 2023-05-01

Abstract A survey questionnaire was administered to 146 MEd students enrolled in a teacher‐training institute Singapore determine the strategies they use promote engaged reading classroom. The majority of teacher respondents when asked how motivate read, wrote down Not Applicable , and 38% were unable write reading. However, results further indicate that even non‐devoted readers amongst them able identify sound literacy instructional strategies. This paper argues desirability lifelong need...

10.1111/lit.12151 article EN Literacy 2018-02-11

Background Opportunities in digital distribution place mobile games as a promising platform for health. However, designing game that can compete the saturated market and deliver persuasive health messages feel like an insurmountable challenge. Although user-centered design is widely advocated, factors such user’s subject domain expertise, budget constraints, poor data collection methods restrict benefits of user involvement. Objective This study aimed to develop playable acceptable health,...

10.2196/13695 article EN cc-by JMIR Serious Games 2019-08-20

Traffic-related air pollution has been associated to a range of adverse health impacts, including decreased heart rate variability (HRV). The association between traffic-related and HRV, however, varied by or HRV marker as well study, suggesting the need for more comprehensive integrative approach examining pollution-mediated biological impacts on these outcomes. In Bayesian framework, we examined effect traffic using structural equation models (SEMs) looked at modification participant...

10.1186/1476-069x-12-81 article EN cc-by Environmental Health 2013-09-23

Exposure to traffic-related air pollution is linked with acute alterations in blood pressure (BP). We examined the cumulative short-term effect of black carbon (BC) exposure on systolic (SBP) and diastolic (DBP) BP assessed modification by participant characteristics. SBP DBP were repeatedly measured 152 traffic enforcers. Using a linear mixed-effects model random intercepts, quadratic (QCDL) cubic (CCDL) constrained distributed lag models fitted estimate BC concentration during 10 hours...

10.3390/ijerph182212122 article EN International Journal of Environmental Research and Public Health 2021-11-18

More information is needed about gender-affirming surgery (GAS) in the Philippines because of many self- or peer-prescribed procedures among transgender people.To assess desire adults for GAS, determined prevalence, and evaluated factors associated with desire.We did a retrospective study medical charts 339 men (TGM) 186 women (TGW) who attended clinical services at Victoria by LoveYourself, transgender-led community-based clinic Metro Manila, from March 2017 to December 2019. The were...

10.1016/j.esxm.2022.100497 article EN cc-by-nc-nd Sexual Medicine 2022-03-02

Our study identified barriers and facilitators in implementing HIV self-testing (HIVST), including the perceptions of men-having-sex-with-men (MSM) transgender women (TGW) on HIVST. Furthermore, we explored current knowledge, practices potential HIVST among MSM TGW populations. Qualitative in-depth key informant interviews were administered using semistructured both English Filipino. Thematic analysis findings was done after transcribing all audio recordings. The National Capital Region...

10.1136/bmjopen-2021-056697 article EN cc-by BMJ Open 2022-03-01

Background: The Philippines is one of Southeast Asia's top consumers beauty products. There have been few studies on the psychological aspects skin-lightening products (SLPs) consumption in Philippines. Hence, we investigated association between knowledge of, perception towards, and frequency use SLP distress (depression, anxiety, stress) levels among Filipino emerging adults. Methods: Using convenience sampling, a cross-sectional online survey collected data from adults (18 to 29 years old)...

10.21037/jphe-23-156 article EN Journal of Public Health and Emergency 2024-03-01

Abstract Inclusive education in the United Arab Emirates (UAE) is evolving with ambitious policies and strategic plans. The extent to which these plans are being embedded into practice mainstream schools across country has not been fully captured. This research used an online survey investigate teachers' perceived competence implementing inclusive practices students disabilities explore its relationship demographic variables. Participants included 999 teachers from public private seven of...

10.1111/1471-3802.12673 article EN Journal of Research in Special Educational Needs 2024-05-02

We aimed to describe the gender-affirming hormonal therapy (GAHT) intake behaviour and regimen factors associated with use of hormones inconsistent reference GAHT among transgender people in Philippines. Cross-sectional study. Transgender community clinic Metro Manila, Philippines from March 2017 December 2019. Gender-affirming care-seeking individuals at least 18 years old, who self-identified as or non-binary, self-reported current previous baseline consult. Reported drugs and/or...

10.1136/bmjopen-2023-072252 article EN cc-by-nc BMJ Open 2023-09-01

The Philippines has a high burden of TB and HIV, yet the WHO estimates that only 13% Filipino patients know their HIV status. This is partly attributable to lack trained counselors medical technologists (or laboratory technicians) at primary healthcare level. In Africa where resources manpower are also scarce, TB/HIV care already delegated community health workers. Evidence scant however about acceptability feasibility engaging workers provide counseling testing (HCT) among in Philippines....

10.1186/s12889-019-6497-7 article EN cc-by BMC Public Health 2019-02-13
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