Emmanuel Baja

Dr. Emmanuel Baja

orcid

Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

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

Representative Publications

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3 May 2022 in PLOS ONE
Verified
Journal Article
Open access
PDF file
LLLeonard Thomas S. Lim
Leonard Thomas S. Lim
ZRZypher Jude Garcia Regencia
Zypher Jude Garcia Regencia
JCJ. Rem C. Dela Cruz
J. Rem C. Dela Cruz
FHFrances Dominique V. Ho
Frances Dominique V. Ho
MRMarcela S. Rodolfo
Marcela S. Rodolfo
EBEmmanuel Baja
Emmanuel Baja
Introduction: The COVID-19 pandemic declared by the WHO has affected many countries rendering everyday lives halted. In the Philippines, the lockdown quarantine protocols have shifted the traditional college classes to online. The abrupt transition to online classes may bring psychological effects to college students due to continuous isolation and lack of interaction with fellow students and teachers. Our study aims to assess Filipino college students’ mental health status and to estimate the effect of the COVID-19 pandemic, the shift to online learning, and social media use on mental health. In addition, facilitators or stressors that modified the mental health status of the college students during the COVID-19 pandemic, quarantine, and subsequent shift to online learning will be investigated. Methods and analysis: Mixed-method study design will be used, which will involve: (1) an online survey to 2,100 college students across the Philippines; and (2) randomly selected 20–40 key informant interviews (KIIs). Online self-administered questionnaire (SAQ) including Depression, Anxiety, and Stress Scale (DASS-21) and Brief-COPE will be used. Moreover, socio-demographic factors, social media usage, shift to online learning factors, family history of mental health and COVID-19, and other factors that could affect mental health will also be included in the SAQ. KIIs will explore factors affecting the student’s mental health, behaviors, coping mechanism, current stressors, and other emotional reactions to these stressors. Associations between mental health outcomes and possible risk factors will be estimated using generalized linear models, while a thematic approach will be made for the findings from the KIIs. Results of the study will then be triangulated and summarized. Ethics and dissemination: Our study has been approved by the University of the Philippines Manila Research Ethics Board (UPMREB 2021-099-01). The results will be actively disseminated through conference presentations, peer-reviewed journals, social media, print and broadcast media, and various stakeholder activities.

20 December 2019 in JMIR Serious Games
Verified
Journal Article
Open access
CHCharlotte Hemingway
Charlotte Hemingway
EBEmmanuel Baja
Emmanuel Baja
GDGodofreda Ruiz Vergeire- Dalmacion
Godofreda Ruiz Vergeire- Dalmacion
PMPaul Mark Medina
Paul Mark Medina
EGErnest Genesis Guevara
Ernest Genesis Guevara
MTMiriam Taegtmeyer
Miriam Taegtmeyer
Background: Opportunities in digital distribution place mobile games as a promising platform for games for health. However, designing a game that can compete in the saturated mobile games market and deliver persuasive health messages can feel like an insurmountable challenge. Although user-centered design is widely advocated, factors such as the user’s subject domain expertise, budget constraints, and poor data collection methods can restrict the benefits of user involvement. Objective: This study aimed to develop a playable and acceptable game for health, targeted at young key populations in the Philippines. Methods: Authors identified a range of user-centered design methods to be used in tandem from published literature. The resulting design process involved a phased approach, with 40 primary and secondary users engaged during the initial ideation and prototype testing stages. Selected methods included participatory design workshops, playtests, playability heuristics, and focus group discussions. Subject domain experts were allocated roles in the development team. Data were analyzed using a framework approach. Conceptual frameworks in health intervention acceptability and game design guided the analysis. In-game events were captured through the Unity Analytics service to monitor uptake and game use over a 12-month period. Results: Early user involvement revealed a strong desire for online multiplayer gameplay, yet most reported that access to this type of game was restricted because of technical and economic constraints. A role-playing game (RPG) with combat elements was identified as a very appealing gameplay style. Findings guided us to a game that could be played offline and that blended RPG elements, such as narrative and turn-based combat, with match-3 puzzles. Although the game received a positive response during playtests, gameplay was at times perceived as repetitive and predicted to only appeal to casual gamers. Knowledge transfer was predominantly achieved through interpretation of the game’s narrative, highlighting this as an important design element. Uptake of the game was positive; between December 1, 2017, and December 1, 2018, 3325 unique device installs were reported globally. Game metrics provided evidence of adoption by young key populations in the Philippines. Game uptake and use were substantially higher in regions where direct engagement with target users took place. Conclusions: User-centered design activities supported the identification of important contextual requirements. Multiple data collection methods enabled triangulation of findings to mediate the inherent biases of the different techniques. Game acceptance is dependent on the ability of the development team to implement design solutions that address the needs and desires of target users. If target users are expected to develop design solutions, they must have adequate expertise and a significant role within the development team. Facilitating meaningful partnerships between health professionals, the games industry, and end users will support the games for health industry as it matures.

MOMaria Catherine Bernolo Otero
Maria Catherine Bernolo Otero
LMLyre Anni Murao
Lyre Anni Murao
MLMary Antoinette G. Limen
Mary Antoinette G. Limen
DCDaniel Rev Avila Caalim
Daniel Rev Avila Caalim
PGPaul Lorenzo A. Gaite
Paul Lorenzo A. Gaite
DMDann Marie Nuñez Del Mundo
Dann Marie Nuñez Del Mundo
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 surveillance method in susceptible communities in a highly urbanized city without WWTP in the Philippines by exploring the extraction and detection methods, evaluating the contribution of physico-chemical–anthropogenic factors, and attempting whole-genome sequencing (WGS). Weekly wastewater samples were collected from sewer pipes or creeks in six communities with moderate-to-high risk of COVID-19 transmission, as categorized by the City Government of Davao from November to December 2020. Physico-chemical properties of the wastewater and anthropogenic conditions of the sites were noted. Samples were concentrated using a PEG-NaCl precipitation method and analyzed by RT-PCR to detect the SARS-CoV-2 N, RdRP, and E genes. A subset of nine samples were subjected to WGS using the Minion sequencing platform. SARS-CoV-2 RNA was detected in twenty-two samples (91.7%) regardless of the presence of new cases. Cycle threshold values correlated with RNA concentration and attack rate. The lack of a sewershed map in the sampled areas highlights the need to integrate this in the WBE planning. A combined analysis of wastewater physico-chemical parameters such as flow rate, surface water temperature, salinity, dissolved oxygen, and total dissolved solids provided insights on the ideal sampling location, time, and method for WBE, and their impact on RNA recovery. The contribution of fecal matter in the wastewater may also be assessed through the coliform count and in the context of anthropogenic conditions in the area. Finally, our attempt on WGS detected single-nucleotide polymorphisms (SNPs) in wastewater which included clinically reported and newly identified mutations in the Philippines. This exploratory report provides a contextualized framework for applying WBE surveillance in low-sanitation areas.

9 March 2023 in PLOS ONE
Verified
Journal Article
Open access
PDF file
JRJohn Danvic T Rosadiño
John Danvic T Rosadiño
RPRonivin G Pagtakhan
Ronivin G Pagtakhan
MBMatthew T Briñes
Matthew T Briñes
JDJeanno Lorenz G Dinglasan
Jeanno Lorenz G Dinglasan
DCDenis P Cruz
Denis P Cruz
EBEmmanuel Baja
Emmanuel Baja
Objective: The study aimed to demonstrate the feasibility of an unassisted and community-based HIV self-testing (HIVST) distribution model and to evaluate its acceptability among men-having-sex-with-men (MSM) and transgender women (TGW).Methods: Our demonstration study focused on implementing the HIVST distribution model in Metro Manila, Philippines. Convenience sampling was done with the following inclusion criteria: MSM or TGW, at least 18 years old, and had no previous HIV diagnosis. Individuals taking HIV pre-exposure prophylaxis, on antiretroviral therapy, or female sex at birth were excluded. The implementation of the study was done online using a virtual assistant and a delivery system via courier due to COVID-19-related lockdowns. Feasibility was measured by the number of HIVST kits successfully delivered and utilized and the HIV point prevalence. Moreover, acceptability was evaluated by a 10-item system usability scale (SUS). HIV prevalence was estimated with linkage to care prioritized for reactive participants.Results: Out of 1,690 kits distributed, only 953 (56.4%) participants reported their results. Overall, HIV point prevalence was 9.8%, with 56 (60.2%) reactive participants linked to further testing. Furthermore, 261 (27.4%) of respondents self-reported, and 35 (13.4%) of the reactive participants were first-time testers. The HIVST service had an overall median and interquartile range (IQR) SUS score of 82.5 (IQR: 75.0, 90.0), rendering the HIVST kits very acceptable.Conclusions: Our study suggests the acceptability and feasibility of HIVST among the MSM and TGW in Metro Manila, Philippines, regardless of their age or HIV testing experience. In addition, other platforms of information dissemination and service delivery of HIVST should be explored, including access to online instructional videos and printed materials, which may facilitate easier use and interpretation of results. Furthermore, due to our study’s limited number of TGW respondents, a more targeted implementation strategy to reach the TGW population is warranted to increase their access and uptake of HIVST.

20 June 2023 in Journal of Public Health
Verified
Journal Article
Closed access
PDF file
AMAlejandro Perez Miras
Alejandro Perez Miras
ZRZypher Jude Garcia Regencia
Zypher Jude Garcia Regencia
EBEmmanuel Baja
Emmanuel Baja
Background: The Dengvaxia® (dengue vaccine) controversy has been identified as one of the main reasons for the measles vaccine hesitancy in the Philippines. Our study aimed to identify various issues related to the Dengvaxia® controversy and to link these issues with the social perspective of measles vaccine refusal. Methods: Semi-structured interviews and a focus group discussion using ethnography research were conducted with 41 parents and healthcare workers in Pasay City. Using Victor Turner's Social Drama Theory, our study identified existing social issues relating to the different angles of the Dengvaxia® controversy and the measles vaccine hesitancy. Results: Misinformation on the failed Dengvaxia® rollout implementation has challenged the fundamental understanding of the importance of immunization programs. Our findings on vaccine hesitancy in the community showed a complex problem with compounded factors, including medical populism, moral panics and other social views. We described how Pasay City’s clinic waiting room became a significantly important scenario where individuals often discuss information, concerns and experiences on vaccines and vaccine hesitancy. Conclusion: Our study suggests that the Dengvaxia® controversy may reduce the measles vaccination confidence in the Philippines. Lack of transparency played a crucial role in this dilemma, producing a cascading effect on the other vaccines' safety.

16 December 2022 in BMC Public Health
Verified
Journal Article
Open access
PDF file
OSOlivia T. Sison
Olivia T. Sison
EBEmmanuel Baja
Emmanuel Baja
ABAmiel Nazer C. Bermudez
Amiel Nazer C. Bermudez
MQMa. Irene N. Quilantang
Ma. Irene N. Quilantang
GDGodofreda Ruiz Vergeire- Dalmacion
Godofreda Ruiz Vergeire- Dalmacion
KBKatie B. Biello
Katie B. Biello
Background: New HIV infections in the Philippines are increasing at an alarming rate. However, over three quarters of men who have sex with men (MSM) have never been tested for HIV. HIV self-testing (HIVST) may increase overall testing rates by removing barriers, particularly fear of stigmatization and mistrust of providers. This study aimed to determine if these factors are associated with preference for HIVST among Filipino cisgender MSM (cis-MSM), and whether there is an interaction between anticipated HIV testing stigma and provider mistrust on preference for HIVST. Methods: We conducted secondary analysis of a one-time survey of 803 cis-MSM who were recruited using purposive sampling from online MSM dating sites and MSM-themed bar locations in Metro Manila, Philippines. Summary statistics were computed to describe participant characteristics. Multivariable modified Poisson regression analyses were conducted to determine if anticipated HIV testing stigma and provider mistrust were associated with preference for HIVST among cis-MSM. Other variables such as age, education, monthly income, relationship status, HIV serostatus, and knowing where to get HIV testing were the minimal sufficient adjustment set in the analyses. Results: Average age of participants was 28.6 years (SD = 8.0); most had received college degrees (73%) and were employed (80%). Most respondents (81%) preferred facility-based testing, while 19% preferred HIVST. A high percentage of participants reported anticipated HIV testing stigma (66%) and provider mistrust (44%). Anticipated HIV testing stigma (aPR = 1.51; 95% CI = 1.01–2.25, p = 0.046) and provider mistrust (aPR = 1.49; 95% CI = 1.07–2.09, p = 0.020) were independently associated with a preference for HIVST. There was a positive, additive interaction between provider mistrust and anticipated HIV testing stigma on preference for HIVST (RERI = 1.13, 95% CI: 0.20–2.06; p = 0.017), indicating that the association between anticipated HIV testing stigma and preference for HIVST is greater among those with provider mistrust compared to those without provider mistrust. Conclusions: HIVST should be offered as a supplement to traditional facility-based HIV testing services in the Philippines to expand testing and reach individuals who may not undergo testing due to anticipated HIV testing stigma and provider mistrust.