Christian R. Mejia

Dr. Christian R. Mejia

Universidad Continental, Huancayo, Junín, Peru
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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10 August 2021 in Sustainability
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Aldo Alvarez-RiscoAldo Alvarez-Risco
Aldo Alvarez-Risco
Shyla Del-Aguila-ArcentalesShyla Del-Aguila-Arcentales
Shyla Del-Aguila-Arcentales
JYJaime A. Yáñez
Jaime A. Yáñez
Marc RosenMarc Rosen
Marc Rosen
CMChristian R. Mejia
Christian R. Mejia
The current study aims to validate and apply an instrument to assess the relationship between communication overload, social overload, technostress, exhaustion and academic performance. We performed a cross-sectional, analytical study of 2286 university medical students to assess the influence of technostress as a mediator of social media overload, communication overload and mental exhaustion and its detrimental effect on the academic performance of university students in Peru during the COVID-19 pandemic. The research model was validated using partial least square structural equation modeling (PLS-SEM) to establish the influence of variables on the model. Communication and social overload were found to positively influence technostress by correlations of 0.284 and 0.557, respectively. Technostress positively influenced exhaustion by 0.898, while exhaustion negatively influenced academic performance by -0.439. Bootstrapping demonstrated that the path coefficients of the research model were statistically significant. The research outcomes may help university managers understand students’ technostress and develop strategies to improve the balanced use of technology for their daily academic activities.

16 April 2020 in Electronic Journal of General Medicine
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CMChristian R. Mejia
Christian R. Mejia
Marcos Roberto Tovani-PaloneMarcos Roberto Tovani-Palone
Marcos Roberto Tovani-Palone
DTDayana Ticona
Dayana Ticona
JRJ. Franco Rodriguez-Alarcon
J. Franco Rodriguez-Alarcon
ACAlejandra M. Campos-Urbina
Alejandra M. Campos-Urbina
PRPercy Ruiz
Percy Ruiz
Introduction: The media play an important role in the dissemination of information on the 2019 novel coronavirus disease (COVID-19) pandemic. However, it is important to measure whether the population is receiving information that calms it down, as well as whether such news are in accordance with the magnitude of the issue. Objective: To validate a questionnaire that measures the perception of the media and their informative role in the face of COVID-19 pandemic. Methods: A validation process for a questionnaire that measures the perception of the magnitude of this issue and whether it generates fear was carried out. The validation was performed by means of a literature search. Moreover, a first version of the scale was developed, which was assessed by 30 experts (physicians, epidemiologists, among others). After this, an exploratory factor analysis and descriptive statistics were performed. Results: Our scale had 13 initial items; however, one of them was eliminated because of its unsatisfactory level of statistical adequacy. Exploratory factorial analysis and parallel analysis suggested three factors. Results of the KMO coefficient (0.833) and the Bartlett’s test of sphericity (4998.5; gl = 66; p0.4 and robust analyses revealed a satisfactory factorial structure (X2=88.0; p= 0.001; IFC=0.968; GFI=0.992; TLI=0.937; RMSEA=0.123). In the descriptive statistics of the 12 final items, moderate and significant correlations between the items were reported (> 0.5). Conclusion: We generate a scale to validate the perception of how people receive information from the media. Thus, this scale can be used to measure the informative role of the media regarding the COVID-19 pandemic, and may even serve for other similar public health emergencies.

18 May 2012 in BJOG: An International Journal of Obstetrics & Gynaecology
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ACAm Carnero
Am Carnero
CMChristian R. Mejia
Christian R. Mejia
PGPj García
Pj García
Please cite this paper as: Carnero AM, Mejía CR, García PJ. Rate of gestational weight gain, pre‐pregnancy body mass index and preterm birth subtypes: a retrospective cohort study from Peru. BJOG 2012;119:924–935.Objective  To examine the shape (functional form) of the association between the rate of gestational weight gain, pre‐pregnancy body mass index (BMI), and preterm birth and its subtypes.Design  Retrospective cohort study.Setting  National reference obstetric centre in Lima, Peru.Population  Pregnant women who delivered singleton babies during the period 2006–2009, resident in Lima, and beginning prenatal care at ≤12 weeks of gestation (n = 8964).Methods  Data were collected from the centre database. The main analyses consisted of logistic regression with fractional polynomial modelling.Main outcome measures  Preterm birth and its subtypes.Results  Preterm birth occurred in 12.2% of women, being mostly idiopathic (85.7%). The rate of gestational weight gain was independently associated with preterm birth, and the shape of this association varied by pre‐pregnancy BMI. In women who were underweight, the association was linear (per 0.1 kg/week increase) and protective (OR 0.88; 95% CI 0.82–1.00). In women of normal weight or who were overweight, the association was U‐shaped: the odds of delivering preterm increased exponentially with rates 0.66 kg/week, and 0.50 kg/week, respectively. In women who were obese, the association was linear, but non‐significant (OR 1.01; 95% CI 0.95–1.06). The association described for preterm birth closely resembled that of idiopathic preterm birth, although the latter was stronger. The rate of gestational weight gain was not associated with indicated preterm birth or preterm prelabour rupture of membranes.Conclusions  In Peruvian pregnant women starting prenatal care at ≤12 weeks of gestation, the rate of gestational weight gain is independently associated with preterm birth, mainly because of its association with idiopathic preterm birth, and the shape of both associations varies by pre‐pregnancy BMI.

30 December 2021 in Vaccines
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DVDavid Arthur Alba Vizcardo
David Arthur Alba Vizcardo
LSLinder Figueroa Salvador
Linder Figueroa Salvador
ANArian Nole-Vara
Arian Nole-Vara
KDKaren Pizarro Dávila
Karen Pizarro Dávila
Aldo Alvarez-RiscoAldo Alvarez-Risco
Aldo Alvarez-Risco
CMChristian R. Mejia
Christian R. Mejia
During the race for the development of a vaccine against COVID-19, even before its commercialization, part of the population has already shown a growing fear of its application. We designed an analytical cross-sectional study using an anonymous survey in the 25 departments of Peru. We surveyed whether the participants were planning on getting vaccinated, as well as other characteristics that were cross-checked in a uni-, bi- and multivariate manner. Of the 1776 respondents, 70% (1251) stated that they were planning to be vaccinated, 20% (346) did not know yet or doubted it, and 10% (179) did not want to be vaccinated. We observed that those who did not get infected with COVID-19 exhibited a higher frequency to not wanting or were uncertain about getting vaccinated (aPR: 1.40; 95% CI: 1.09–1.81; p-value = 0.008). In contrast, there was a lower frequency of vaccine refusal among university students (aPR: 0.75; 95% CI: 0.61–0.92; p-value = 0.005) and healthcare workers (aPR: 0.59; 95% CI: 0.44–0.80; p-value = 0.001); adjusted by place of residence. There is still an important percentage of respondents who do not want to be vaccinated or are hesitant to do it, which was associated with educational level, being a healthcare worker and if they were previously infected with COVID-19. Our results could offer useful information about COVID-19 vaccination campaigns.

5 October 2017 in PLOS ONE
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CMChristian R. Mejia
Christian R. Mejia
Mario J. Valladares-GarridoMario J. Valladares-Garrido
Mario J. Valladares-Garrido
AMArmando Miñan-Tapia
Armando Miñan-Tapia
FSFelipe T. Serrano
Felipe T. Serrano
LTLiz E. Tobler-Gómez
Liz E. Tobler-Gómez
DVDanai Valladares-Garrido
Danai Valladares-Garrido
Sci-Hub is a useful web portal for people working in science as it provides access to millions of free scientific articles. Satisfaction and usage should be explored in the Latino student population. The objective of this study was to evaluate the use, knowledge, and perception of the scientific contribution of Sci-Hub in medical students from Latin America. A multicenter, observational, analytical study was conducted in 6632 medical students from 6 countries in Latin America. We surveyed from a previously validated instrument, delving into knowledge, monthly average usage, satisfaction level, and perception of the scientific contributions provided by Sci-Hub. Frequencies and percentages are described, and generalized linear models were used to establish statistical associations. Only 19.2% of study participants knew of Sci-Hub and its function, while the median use was twice a month. 29.9% of Sci-Hub-aware participants claimed they always find the desired scientific information in their Sci-Hub search; 62.5% of participants affirmed that Sci-Hub contributes to scientific investigation; only 2.2% reported that Sci-Hub does not contribute to science. The majority of Latino students are not aware of Sci-Hub.

20 April 2017 in BMC Research Notes
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RSRed-Lirhus (Grupo Colaborativo Latinoamericano Para la Investigación En Recursos Humanos En Salud)
Red-Lirhus (Grupo Colaborativo Latinoamericano Para la Investigación En Recursos Humanos En Salud)
PMPercy Manuel Mayta-Tristán
Percy Manuel Mayta-Tristán
RPReneé Pereyra-Elías
Reneé Pereyra-Elías
JMJuan José Montenegro-Idrogo
Juan José Montenegro-Idrogo
CMChristian R. Mejia
Christian R. Mejia
EMEdward Mezones-Holguín
Edward Mezones-Holguín
Latin America is undergoing a human resource crisis in health care in terms of labor shortage, misdistribution and poor orientation to primary care. Workforce data are needed to inform the planning of long-term strategies to address this problem. This study aimed to evaluate the academic and motivational profile, as well as the professional expectations, of Latin American medical students. We conducted an observational, cross-sectional, multi-country study evaluating medical students from 11 Spanish-speaking countries in 2011–2012. Motivations to study medicine, migration intentions, intent to enter postgraduate programs, and perceptions regarding primary care were evaluated via a self-administered questionnaire. Outcomes were measured with pilot-tested questions and previously validated scales. A total of 11,072 valid surveys from 63 medical schools were gathered and analyzed. This study describes the profile and expectations of the future workforce being trained in Latin America. The obtained information will be useful for governments and universities in planning strategies to improve their current state of affairs regarding human resources for health care professions.