1.Assessment of knowledge, attitudes, and practices on coronavirus disease 2019 vaccine among high-risk pregnant and lactating women: A cross-sectional study in a Philippine tertiary hospital.
Iris A. SORIA-ARIKAN ; Valerie P. TIEMPO-GUINTO
Philippine Journal of Obstetrics and Gynecology 2025;49(3):161-170
BACKGROUND
Coronavirus disease 2019 (COVID-19) infection is still a problem in our country for the past 2 years. The pandemic severely affected the immunocompromised and high-risk group of patients, such as the pregnant and lactating women. Research shows that this group has higher risk of being critically ill as well as dying. However, there are only a few studies on how COVID-19 vaccine is perceived among this vulnerable group. Hence, this study aims to assess the knowledge, attitude, and practices on COVID-19 vaccine among high-risk pregnant and lactating women. Moreover, the results will be used in crafting health policies that affect this specific group of patients.
METHODOLOGYA prospective cross-sectional study was conducted on high-risk pregnant and lactating women who sought antenatal consults at the High-Risk Clinic in a tertiary training hospital for a 1-month period. Participants were asked to answer a validated questionnaire assessing their knowledge, attitudes, and practices on COVID-19 vaccine. They were also asked about their sociodemographic characteristics, co-morbidities, history of COVID-19 infection, and vaccination status, as well as the source of their information regarding the vaccine. Descriptive statistics was used to summarize in this study. In addition, frequency and proportion were used for nominal variables, median and range for ordinal variables, and mean and standard deviation for interval or ratio variables. MINITAB 20 was used for data analysis.
RESULTSA total of 323 high-risk pregnant and lactating women were enrolled in the study with an average age of 29 years old. Socio-demographic characteristics of the participants showed that they were high-school graduate, single, mostly financially disadvantaged, and resides in Cavite, Laguna, Batangas, Rizal and Quezon area. The majority have diabetes mellitus as their co-morbidity, were not infected with COVID-19 and had already been vaccinated. The significant source of information of vaccine information was mainly from social media. The study presented that more than 90% were aware that COVID-19 vaccine was recommended by professional organizations, however, only 55%–59% only agree that it is safe during pregnancy and breastfeeding. The result also conveyed a positive attitude toward vaccination as the pregnancy progresses, as well as during lactation. As to practices, 80% of the participants were told by their health care providers to get vaccinated and 72% of them reported vaccine side effects. Furthermore, 58% of the participants would recommend vaccination during pregnancy while only 54% will recommend it while breastfeeding.
CONCLUSIONAssessment of knowledge, attitudes, and practices of COVID-19 vaccine among high-risk pregnant and lactating women gave an understanding on how a vulnerable population perceives vaccination. In general, this research study presented high percentage COVID-19 vaccine awareness and acceptance; however, it can also be seen that there is a mixed perception regarding vaccine safety during pregnancy and lactation. Strategies to improve health literacy which are evidenced based that can be carried out by a health care provider could be established to achieve maximum vaccination coverage among high-risk group of patients.
Human ; Female ; Coronavirus ; Covid-19 ; Vaccines ; Pandemics
2.Cost-effectiveness analysis of various Coronavirus Disease (COVID-19) vaccines against emerging variants of concern in the Philippines.
Haidee A. VALVERDE ; Clarence C. YACAPIN ; Paul Matthew D. PASCO ; Joana Ophelia M. REAL ; Jaifred Christian F. LOPEZ ; Hannah Eleanor CLAPHAM ; Yi Zhen CHEW ; Chris Erwin G. MERCADO ; Siobhan BOTWRIGHT ; Madison SILZLE ; Hilton Y. LAM
Acta Medica Philippina 2025;59(14):37-48
OBJECTIVES
During the early COVID-19 pandemic (2020 to mid-2021), the Philippine government relied on nonpharmaceutical interventions such as lockdowns and Enhanced Community Quarantine (ECQ). With the emergency use authorization of vaccines, assessing their potential impact became essential. This study develops a Philippine model to evaluate the epidemiologic and economic effects of COVID-19 vaccination, estimating its impact on mortality, hospitalization, and mild/asymptomatic cases under various prioritization strategies, including booster doses and the presence of variants of concern.
METHODSA dynamic transmission model (DTM) with an SEIR (Susceptible-Exposed-Infected-Recovered) structure was calibrated using local data, including case numbers, deaths, seroprevalence, vaccination coverage, and intervention costs. The model’s outputs informed a cost-effectiveness analysis (CEA) from health system and societal perspectives over a two-year horizon. Incremental Cost-Effectiveness Ratios (ICERs) were calculated, with costs adjusted to 2020 prices and discount rates of 3%-10% applied. Sensitivity analyses, including one-way and probabilistic approaches, assessed robustness, while a budget impact analysis (BIA) estimated government expenditures in 2020 and 2021.
RESULTSWithout vaccination, daily cases could have peaked at 400,000 between February and May 2021. A vaccination campaign was projected to reduce cases to around 20,000, significantly lowering mortality.
From the health system perspective, the estimated cost without vaccination was PhP 14.46 trillion, with 93.83 million QALYs. With vaccination, costs dropped to PhP 2.36 trillion, while QALYs increased to 101.79 million. From the societal perspective, costs were PhP 14.68 trillion without vaccination and PhP 2.38 trillion with vaccination, with the same QALY outcomes.
CEA results confirmed that vaccination was cost-saving, with ICERs of -PhP 1,520,727.28 per QALY (health system) and -PhP 1,546,171.63 per QALY (societal). Sensitivity analyses supported these findings, with oneway sensitivity analysis showing minimal impact from parameter changes and probabilistic sensitivity analysis confirming cost-saving outcomes. The BIA estimated government expenditures of PhP 983.45 billion in 2020 and PhP 1.47 trillion in 2021 for the vaccine scenario, lower than the no-vaccine scenario.
CONCLUSIONIndeed, our modeling has shown that COVID-19 vaccines could mitigate the spread of COVID-19 and provide good value for money.
Human ; Covid-19 ; Cost-effectiveness Analysis ; Vaccines ; Philippines
3.Evaluation of the implementation of urban and rural Local Government Unit (LGU) responses to the COVID-19 pandemic in selected communities in Luzon.
Carlos Primero D. GUNDRAN ; Teodoro J. HERBOSA ; Alfredo Mahar Francisco A. LAGMAY ; Emerito Jose A. FARAON ; Genaro A. CUARESMA ; Donnabel TUBERA-PANES ; Adrian C. ALEJANDRO ; Miraclene C. MOLTIO ; Gabriel Jay B. CAOENG ; Jacel Mae Z. APARRI ; Dorothy Mae FORNELOZA
Acta Medica Philippina 2025;59(14):75-88
OBJECTIVES
The study aims to identify the gaps and document the best practices in the response during the COVID-19 pandemic. The study also compared how urban and rural sites of local government units (LGUs) implement measures. Hence, the study was conducted to probe into the non-uniform implementation of COVID-19 protocols in two (2) rural and two (2) urban local government units (LGUs), and the best practices that can be done to remedy this gap in disaster risk management.
METHODSA case study design was employed and analyzed using a triangulation approach to determine the gaps and best practices of the selected urban and rural LGUs in implementing COVID-19 protocols. The study adopted the WHO COVID-19 Strategic Preparedness and Response Plan (SPRP) Monitoring and Evaluation Framework (COVID-19) M&E Framework) in monitoring and tracking situations, containment efforts, and the response during the pandemic around the world. The study was tailored for both urban and rural LGUs in the Philippines to identify their approach in implementing their COVID-19 protocols.
RESULTSFindings showed that best practices include strict border controls and granular lockdowns, conversion of existing buildings into isolation facilities, and extensive information dissemination. The gaps in implementation identified were the lack of human resources and necessary facilities to treat patients, no purpose-built isolation facilities, “inapplicability” of national protocols and ordinances in local settings, misinformation regarding the COVID-19 pandemic, and uncooperative behavior of the people.
CONCLUSIONUrban and rural communities are recommended to build risk communication and scenarios, establishing “Botika” and mobile vaccination, and extensive information dissemination as remedy to the misinformation regarding the virus, vaccine, and other pandemic-related information. Additionally, penalizing people who spread false information regarding the pandemic also be implemented. Finally, preventive health assistance should be provided to the first responders such as barangay hall personnel.
Human ; Covid-19 ; Pandemics
4.Trends in knowledge, attitude and perceptions about HIV among Filipinos during and after the COVID-19 pandemic: Responses from a digital survey.
Glyzelle Anne A. Lagason ; Judith Anne Rose Y. Ganaden ; Martin Xavier D. Peñ ; aflor ; Ericson P. Acapulco ; Kristine T. Donarye ; John Alexander L. Fellizar ; Ma. Tarcela S. Gler
Acta Medica Philippina 2025;59(Early Access 2025):1-6
BACKGROUND
The Philippines has been significantly affected by the HIV epidemic in the Asia-Pacific region, with a notable increase in new cases over the past decade. Despite efforts to promote HIV testing, access to treatment, and awareness campaigns, progress has been slow, particularly among youths. Tangere, a market research application, conducted surveys during and after the COVID-19 pandemic to assess HIV knowledge among Filipinos.
OBJECTIVESThis study aimed to evaluate changes in HIV awareness among young Filipinos during and after the COVID-19 pandemic using data collected via Tangere’s surveys. Specifically, it sought to analyze demographic characteristics, sources of HIV information, and knowledge regarding HIV transmission, prevention, and stigma.
METHODSTangere collaborated with the investigators to develop a questionnaire assessing HIV knowledge among young Filipinos. Surveys were conducted during and after the COVID-19 pandemic, targeting subscribers aged 18-35 years, primarily from the National Capital Region and Luzon area. Data analysis involved calculating frequencies and percentages to summarize demographic characteristics and HIV knowledge. An Independent-Samples Proportions procedure was used to compare HIV knowledge during and after the pandemic.
RESULTSThe survey revealed that while respondents generally possessed reasonable knowledge about HIV, there were notable changes in the awareness during and after the pandemic. Social media and television were identified as primary sources of HIV information. Knowledge regarding HIV transmission and prevention increased postpandemic, particularly concerning preventive measures such as pre-exposure prophylaxis (PREP) and motherto-child transmission (MTCT). However, persistent misconceptions and stigma surrounding HIV remained, indicating the need for continued education and advocacy efforts.
CONCLUSIONThe study underscores the importance of utilizing social media platforms for HIV awareness campaigns, especially among youths who are disproportionately affected by the epidemic. Despite improvements in knowledge, the Philippines has yet to achieve global HIV prevention goals. Continued efforts to enhance awareness, particularly regarding recent advancements in HIV prevention and treatment, are essential for curbing the epidemic and improving public health outcomes nationwide.
Human ; Knowledge ; Attitude ; Hiv ; Covid-19 ; Pandemics
5.Patterns of in-patient antibiotic use among COVID-19 patients in a tertiary government hospital: A retrospective cross-sectional survey
Alshan Ruccini D. Sicat ; Mark Ryan G. Langit
Acta Medica Philippina 2025;59(Early Access 2025):1-10
BACKGROUND
The occurrence of the COVID-19 pandemic resulted in increased risk of developing antimicrobial resistance due to the high utilization of antimicrobial agents. Since antimicrobial utilization is a crucial driver in the development of antimicrobial resistance, the need for antimicrobial use surveillance is crucial in identifying prescription patterns that would help provide proper interventions.
OBJECTIVETo determine the antibiotic use and prevalence of prescription quality indicators among COVID-19 patients admitted at a tertiary government hospital.
METHODSA retrospective cross-sectional survey was conducted to provide data on antibiotic use and the prevalence of prescription quality indicators among COVID-19 patients in a tertiary-level hospital from June 2021 to June 2022.
RESULTSA total of 342 patient medical records were surveyed. The majority (119, 34.8%) of the patients were in the age group 41-60 years old and there were more male patients (52.34%) than female patients (47.66%). About 88.99% of the patients were considered to have community-acquired COVID-19 infections. Co-morbidities among patients were seen in more than half of the surveyed population (64%). These include hypertension, diabetes mellitus, chronic kidney disease, coronary artery disease, chronic lung disease, and hematologic disorders.
Empiric antibiotic therapy was high at 88.88%, while definitive treatment with confirmed bacterial infection was only at 11.11%. The most frequently prescribed antibiotic therapies are azithromycin (250, 45.9%), ceftriaxone (188, 32.2%), and cefuroxime (58, 9.9%). Patterns of antibiotic use are attributed to the similarities of respiratory bacterial infections with COVID-19 cases.
Prescription quality indicators assessed in the study include documentation of indication for prescriptions, guideline compliance, collection of culture before antibiotic therapy, and stop/review documentation. Out of 583 antibiotic prescriptions, 464 (79.58%) were properly documented with an indication. Non-compliance to guidelines reached 39.11%, while the stop and review date documentation rate was 20.41%. The collection of culture before the start of antibiotic therapy was at 50.2%.
CONCLUSIONThe results from the study highlighted the need for antimicrobial surveillance and stewardship efforts among COVID-19 and other viral infections.
Human ; Covid-19 ; Anti-bacterial Agents ; Antibiotic ; Coronavirus
6.Association of SARS-COV 2 real-time PCR Cycle threshold (Ct) values with the clinical and laboratory profiles of confirmed COVID-19 patients admitted in tertiary infectious disease Hospital in Manila: A retrospective study
Edith S. Tria ; Joy P. Calayo ; Zita R. Dela merced ; Joel T. duque ; Cayel Jurist C. Garong ; John Robert C. Medina ; Geraldine B. Dayrit
Acta Medica Philippina 2025;59(Early Access 2025):1-12
BACKGROUND AND OBJECTIVES
COVID-19 has quickly spread over the world and became an unprecedented burden on health care systems. COVID-19 diagnosis necessitates the use of precise testing methods such as RT-PCR. This method is generally reported as positive or negative, however, studies have shown its semi-quantitative capability through Ct values. This study determined an association that exists between the Ct values, clinical features, and laboratory findings among COVID-19 patients admitted in a tertiary infectious disease hospital in Manila, Philippines. This attempts to further explore the utility of RT-PCR in disease severity classification and diagnosis.
METHODSThis was an observational retrospective study that utilized a purposive sampling method, wherein patients were selected based on the DOH case definition of confirmed COVID-19, and were stratified according to disease severity. Baseline laboratory data of the patients were gathered from medical records covering the period of June 2021 to January 2022 using a Data Collection Form. Chi-square test was used to measure the degree of association between the groups and categorical variables. Regression Analysis was used to identify predictors for certain variables. SPSS Statistics for Windows, Version 25.0 was utilized for the statistical analysis.
RESULTSThe total WBC, neutrophil, lymphocyte and monocyte counts, serum urea, LDH, CRP and PTT were found to be predictors of COVID-19 severity. There was no significant difference observed between the disease severity and the patient’s clinical outcome. All routine laboratory tests that were taken at baseline (ORF Gene, N-Gene, Hematocrit, White Blood Cells, Neutrophil, Lymphocyte, Monocyte, Platelet Count, Urea, Creatinine, SGPT, SGOT, Na, K, LDH, Ferritin, C Reactive Protein, Procalcitonin, D-Dimer, PT, PTT) were not significant predictors of the clinical outcome. Although WBC, neutrophil, lymphocyte, and monocyte count, urea, LDH, CRP, and PTT were predictors of disease severity. The study also reported that the odds of having severe to critical disease increases by 20.6% for every one unit increase in neutrophil count, and 17.4% for every one unit increase in lymphocyte count. Among the laboratory parameters, neutrophil count (p=0.010654063) and urea (p= 0.04149874 have direct relationship with the N gene Ct values while Orf gene Ct Values have direct relationship with lymphocyte count (p=0.01269027). Similarly, regression showed that as monocyte count, creatinine levels, and serum ferritin decrease, Ct values increase. Sex was found to not be a significant predictor of disease severity and clinical outcome. There was also no significant difference observed between the disease severity and the patient’s clinical outcome.
CONCLUSIONThe study showed that the Ct values for both ORF and N genes were not significant predictors of both disease severity and clinical outcome. However, ORF gene Ct values have direct relationship with lymphocyte counts while N gene Ct values have direct correlation with neutrophil count and urea levels. Similarly, monocyte, creatinine, and ferritin are negatively correlated with Ct values. It is important to monitor the patient’s laboratory biomarkers in order to determine the proper course of treatment and management for each case.
Human ; Sars-cov-2 ; Covid-19
7.Electrocardiographic manifestations of hospitalized adult patients with coronavirus disease 19 (COVID-19): UP-PGH DCVM ECG study
Felix Eduardo R. Punzalan ; Paul Anthony O. Alad ; Tam Adrian P. Aya-ay ; Kaye Eunice L. Lustestica ; Nigel Jeronimo C. Santos ; Jaime Alfonso M. Aherrera ; Elmer Jasper B. Llanes ; Giselle G. Gervacio ; Eugenio B. Reyes ; John C. Añ ; onuevo
Acta Medica Philippina 2025;59(Early Access 2025):1-5
BACKGROUND AND OBJECTIVE
COVID-19 has been associated with cardiac injury, often detectable through electrocardiographic (ECG) changes. This study seeks to characterize the cardiovascular and electrocardiographic profiles of adult patients diagnosed with COVID-19.
METHODSThis study included adult patients with confirmed COVID-19 from June 2021 to June 2022. Clinical profiles and 12-lead ECG tracings were obtained from electronic medical records and reviewed independently by three cardiologists. Descriptive analysis was performed to summarize the cardiovascular and electrocardiographic findings in this population.
RESULTSThe study included 998 COVID-19 patients (mean age: 50 years; 53.7% male). The most common comorbidities were hypertension, diabetes, and dyslipidemia. A majority (31.36%) presented with severe COVID-19 infection. The most frequent significant ECG abnormalities observed at admission were sinus tachycardia (22.8%), and atrial fibrillation (11.02%). Additional ischemic findings included ST segment depression (2.91%), T-wave inversion (1.70%), and ST segment elevation (2.71%).
CONCLUSIONThe baseline ECG findings among COVID-19 patients were predominantly normal; however, significant abnormalities were also identified. The most frequent abnormalities included sinus tachycardia, atrial fibrillation, and ischemic changes, all of which may have clinical implications.
Human ; Coronavirus Disease 19 ; Covid-19 ; Electrocardiography ; Atrial Fibrillation
8.The psychological impact of COVID-19 pandemic on students
Chioma Rita Nwoeabia ; Rufina C. Abul
Acta Medica Philippina 2025;59(Early Access 2025):1-14
OBJECTIVE
This study aimed to determine the psychological impact of the COVID-19 pandemic on university students, categorically focusing on effective coping strategies adopted.
METHODSThe researcher used a descriptive cross-sectional design and a pseudo-random number sampling method with an inversion technique to randomly select 548 health science students who participated fully out of the sum of 4,140 students from each department. The initial goal was to include 572 students in the sample. This ensured a fair representation of students from the University of Nigeria, Nsukka (UNN). The researcher evaluated these students using the COVID-19 Student Stress Questionnaire and Brief-Cope Scales.
RESULTSFindings showed that 58.8% of the respondents were females, 34.7% were enrolled in the nursing program, and 59.7% chose to live with their parents. Most of the students experienced moderate stress, with 45.25% and 5.47% experiencing extremely stressful or distressing situations, in terms of relationships and academic life, respectively. There were no significant differences in fear of contagion, regardless of the students' gender. and social isolation between students who lived with and without their parents. In terms of relationships and academic life among the students, there was no significant difference in relation to the demographic characteristics. Results also showed that 26.6% of the students used problem-focused coping “a little bit," and there was no significant difference as to their developmental characteristics for those using problem-focused coping, emotion-focused coping, or avoidant coping. However, the results indicated a greater tendency towards avoidant coping strategies, with no significant differences observed. Students disproportionately adopted problem-focused, emotion-focused, and avoidant coping strategies. Students reported a weakly significant positive correlation between emotionfocused coping and problem-focused coping, and a large negative association between fear of contagion and problem-focused coping strategies. They also reported a slightly positive correlation between relationships, academic life, and social isolation.
CONCLUSIONThe study revealed that most students experience moderate stress, which gradually escalates into extremely stressful situations, particularly in relationships and academics. The researcher found no significant differences in fear of contagion or social isolation. However, avoidant coping was more prevalent compared to problem-focused and emotion-focused strategies. There were weak positive correlations between emotion-focused and problem-focused coping. Policy reform in the health and academic systems will strategically improve students' mental health.
Human ; Covid-19 ; Covid-19 Pandemic ; Mental Health
9.Dermatomyositis following COVID-19 vaccination: A case report and review of vaccine-associated autoimmune phenomena
Mark Andrian O. Yano ; Geraldine T. Zamora
Acta Medica Philippina 2025;59(Early Access 2025):1-4
The COVID-19 pandemic has underscored the vital role of vaccination in mitigating widespread morbidity and mortality. Nevertheless, the global vaccination campaign has also brought to light rare but notable immune-mediated adverse events. Vaccination is inherently immune stimulatory, designed to provoke a robust immune response, and in rare instances, this heightened immune activity may unmask or trigger autoimmunity in genetically predisposed individuals. Proposed mechanisms include molecular mimicry, epitope spreading, and bystander activation, all of which can disrupt immune tolerance and initiate autoreactive responses. This case report explores a potential link between COVID-19 vaccination and the onset of dermatomyositis, adding to the growing body of literature examining the rare but important phenomenon of vaccine-associated autoimmunity.
Human ; Male ; Middle Aged: 45-64 Yrs Old ; Dermatomyositis ; Covid-19 ; Vaccines
10.External ocular manifestations among patients diagnosed with Coronavirus disease 2019 in a referral center in the Philippines
Alyssa Louise B. Pejana-paulino ; Aramis B. Torrefranca jr. ; Nilo Vincent Dg. Florcruz ; Ma. Dominga B. Padilla
Acta Medica Philippina 2025;59(Early Access 2025):1-9
BACKGROUND AND OBJECTIVES
The global pandemic caused by Coronavirus Disease 2019 (COVID-19) has affected millions, with growing evidence of the potential role of ocular tissues in viral transmission. At the time of writing, local data regarding the phenomenon was limited. This study investigated external ocular manifestations in patients with COVID-19 at a referral center in the Philippines, examined correlations between demographics, systemic manifestations, and laboratory results with ocular manifestations, and determined their timing relative to systemic symptoms.
METHODSThis single-center, descriptive cross-sectional study was carried out from December 8 to 18, 2020 at the adult COVID-19 wards of the Philippine General Hospital involving 72 participants. Data collection involved relevant clinical history taking and performing gross eye examination. The prevalence of ocular manifestations was described with 95% confidence intervals. Correlations between ocular manifestations and quantitative variables were analyzed with point-biserial correlation, and associations with qualitative variables were tested using chi-square or Fisher’s exact tests.
RESULTSAmong participants, 31.9% presented with ocular manifestations with foreign body sensation as the most prevalent ocular symptom (11.1%) and conjunctival hyperemia as the most prevalent ocular finding (19.4%). The median age of patients with ocular manifestations was 41 years old with a higher prevalence in the male population (73.9%, CI=95%, p=0.001). No significant correlation was observed between presence of external ocular manifestations and the different systemic and ocular co-morbidities as well as with COVID-19 clinical classification. Among those who experienced symptoms, majority (29.2%) of the patients experienced systemic symptoms prior to the onset of ocular symptoms. Ocular complaints may present as the sole manifestation (13.9%). Several laboratory parameters were measured and only temperature and AST levels showed a low positive correlation with the presence of ocular manifestations.
CONCLUSIONOcular manifestations occur in roughly one third of patients with COVID-19 based on this study population. With some individuals presenting with ocular signs or symptoms as the initial and sole manifestation, healthcare practitioners must exercise caution and remain vigilant in managing patients who present as such. At the time of writing, this is the first local study investigating the different external ocular manifestations in patients with COVID-19. There is a need to pursue more robust studies and conduct more local investigations which will guide both ophthalmologists and other practitioners in strengthening existing guidelines regarding precautionary practices, clinical diagnosis, and management of COVID-19 patients.
Human ; Sars-cov-2 ; Covid-19 ; Philippines


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