Patricia Zavaleta-Ramirez

Dr. Patricia Zavaleta-Ramirez


Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

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

Representative Publications

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14 June 2018 in BMC Psychiatry
Verified
Journal Article
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FPFrancisco R. de la Peña
Francisco R. de la Peña
LVLino R. Villavicencio
Lino R. Villavicencio
JPJuan D. Palacio
Juan D. Palacio
FFFernando J. Félix
Fernando J. Félix
MLMarcela Larraguibel
Marcela Larraguibel
RURosa-Elena Ulloa
Rosa-Elena Ulloa
There are various language adaptations of the Schedule for Affective Disorders and Schizophrenia for School Age Children Present and Lifetime Version (K-SADS-PL). In order to comply with the changes in DSM classification, the Spanish edition of the interview was in need of update and evaluation. K-SADS-PL was adapted to correspond to DSM-5 categories. All clinicians received training, and a 90% agreement was reached. Patients and their parents or guardians were interviewed and videotaped, and the videos were exchanged between raters. Factor analysis was performed and inter-rater reliability was calculated only in the case of diagnoses in which there were more than five patients. A total of 74 subjects were included. The Factor Analysis yielded six factors (Depressive, Stress Hyperarousal, Disruptive Behavioral, Irritable Explosive, Obsessive Repetitive and Encopresis), representing 72% of the variance. Kappa values for inter-rater agreement were larger than 0.7 for over half of the disorders. The factor structure of diagnoses, made with the instrument was found to correspond to the DSM-5 disorder organization. The instrument showed good construct validity and inter-rater reliability, which makes it a useful tool for clinical research studies in children and adolescents.

15 February 2023 in Journal of the American Academy of Child & Adolescent Psychiatry
Verified
Journal Article
Open access
BWBen Hoi-Ching Wong
Ben Hoi-Ching Wong
SCSamantha Cross
Samantha Cross
PZPatricia Zavaleta-Ramirez
Patricia Zavaleta-Ramirez
IBInes Bauda
Ines Bauda
PHPamela Hoffman
Pamela Hoffman
DODennis Ougrin
Dennis Ougrin
To compare psychiatric emergencies and self-harm at emergency departments (EDs) 1 year into the pandemic, to early pandemic and pre-pandemic, and to examine the changes in the characteristics of self-harm presentations. This retrospective cohort study expanded on the Pandemic-Related Emergency Psychiatric Presentations (PREP-kids) study. Routine record data in March to April of 2019, 2020, and 2021 from 62 EDs in 25 countries were included. ED presentations made by children and adolescents for any mental health reasons were analyzed. Altogether, 8,174 psychiatric presentations were recorded (63.5% female; mean [SD] age, 14.3 [2.6] years), 3,742 of which were self-harm presentations. Rate of psychiatric ED presentations in March to April 2021 was twice as high as in March to April 2020 (incidence rate ratio [IRR], 1.93; 95% CI, 1.60-2.33), and 50% higher than in March to April 2019 (IRR, 1.51; 95% CI, 1.25-1.81). Rate of self-harm presentations doubled between March to April 2020 and March to April 2021 (IRR, 1.98; 95% CI, 1.68-2.34), and was overall 1.7 times higher than in March to April 2019 (IRR, 1.70; 95% CI, 1.44-2.00). Comparing self-harm characteristics in March to April 2021 with March to April 2019, self-harm contributed to a higher proportion of all psychiatric presentations (odds ratio [OR], 1.30; 95% CI, 1.05-1.62), whereas female representation in self-harm presentations doubled (OR, 1.98; 95% CI, 1.45-2.72) and follow-up appointments were offered 4 times as often (OR, 4.46; 95% CI, 2.32-8.58). Increased pediatric ED visits for both self-harm and psychiatric reasons were observed, suggesting potential deterioration in child mental health. Self-harm in girls possibly increased and needs to be prioritized. Clinical services should continue using follow-up appointments to support discharge from EDs. One or more of the authors of this paper self-identifies as a member of one or more historically underrepresented racial and/or ethnic groups in science. We actively worked to promote inclusion of historically underrepresented racial and/or ethnic groups in science in our author group. While citing references scientifically relevant for this work, we also actively worked to promote inclusion of historically underrepresented racial and/or ethnic groups in science in our reference list. The author list of this paper includes contributors from the location and/or community where the research was conducted who participated in the data collection, design, analysis, and/or interpretation of the work.

4 August 2023 in Clinical Child Psychology and Psychiatry
Verified
Journal Article
Closed access
PZPatricia Zavaleta-Ramirez
Patricia Zavaleta-Ramirez
MRMarcos Francisco Rosetti
Marcos Francisco Rosetti
LALilia Albores-Gallo
Lilia Albores-Gallo
OLOmar Nafate López
Omar Nafate López
PGPaula Padierna González
Paula Padierna González
Low- and middle-income countries face heterogeneity in the way clinicians’ approach Autism Spectrum Disorder (ASD) diagnosis and treatment. The current study analyzes the diagnostic tools, laboratory tests, pharmacological and psychosocial interventions received by patients during the steps to diagnosis and treatment of two specialized care centers. Researchers interviewed families with a child with ASD receiving services at either a child psychiatric or a pediatric hospital. Of the total sample, 47% reported clinicians not using a diagnostic tool, 20% reported not receiving any psychosocial intervention, and 88% reported receiving a pharmacological prescription. Patients at the pediatric hospital were more likely to receive interventions with some components of Applied Behavioral Analysis, Early Start Denver Model, Treatment and Education of Autistic and Related Communication Handicapped Children, and Sensory integration therapy; while patients at the psychiatric hospital were more likely to undergo learning, daily living skills, and socialization therapies. Patients at the psychiatric hospital received significantly more requests to obtain auditory and vision tests whilst genetic testing and imaging were more common in the pediatric hospital. The range and variability in terms of diagnostic tools, laboratory tests, and treatment options observed for both sites reflect a lack of consensus. Recommendations to improve ASD diagnostic and treatment in Mexico are given.

26 May 2026 in Topics in Cognitive Science
Verified
Journal Article
Open access
PZPatricia Zavaleta-Ramirez
Patricia Zavaleta-Ramirez
MPMireia L. Sole Pi
Mireia L. Sole Pi
EAEmilio Ruiz Alanis
Emilio Ruiz Alanis
MRMarcos Francisco Rosetti
Marcos Francisco Rosetti
COCarolyn K. O'MEara
Carolyn K. O'MEara
Previous work has shown that humans make consistent associations between odor and color. However, neurodiverse individuals, especially those with autism spectrum disorder (ASD), perceive and interpret sensory information differently from their neurotypical peers. Their sensory perceptual experiences can involve hypersensitivity or hyposensitivity, as well as deficits in multisensory integration, especially among younger individuals. In this study, we evaluated olfactory−visual associations among verbal individuals with ASD, attention deficit/hyperactivity disorder (ADHD), and a comparison group of children without neurodevelopmental disorders by means of an odor−color association task. We found that youth with ASD, ADHD, and without neurodevelopmental disorders experience olfactory perception in a similar manner, showing similar inconsistencies in terms of (verbal) odor identification and odor−color associations, while rating odors similarly in terms of (un)pleasantness, specifically for sour, salty, and spicy odors and sweet and fruity odors. This supports the notion that neurodivergent youth present individual variation in olfaction, but less so in perceived odor pleasantness, results that promote further exploration of odor−color associations within and across diverse populations.

12 August 2025 in Salud Pública de México
Verified
Journal Article
Open access
JVJacqueline Villaruel-Ortega
Jacqueline Villaruel-Ortega
EBEdgar Rodolfo Bautista-Jiménez
Edgar Rodolfo Bautista-Jiménez
MRMarcos Francisco Rosetti
Marcos Francisco Rosetti
LALilia Albores-Gallo
Lilia Albores-Gallo
PZPatricia Zavaleta-Ramirez
Patricia Zavaleta-Ramirez

26 March 2025 in Preprints.org
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Preprint
Open access
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DRDavid Ruiz
David Ruiz
José Jaime Martínez-MagañaJosé Jaime Martínez-Magaña
José Jaime Martínez-Magaña
IJIsela Esther Juárez-Rojop
Isela Esther Juárez-Rojop
GNGermán Alberto Nolasco-Rosales
Germán Alberto Nolasco-Rosales
FSFernanda Sosa-Hernández
Fernanda Sosa-Hernández
AGAlma Delia Genis-Mendoza
Alma Delia Genis-Mendoza
Psychosis is one of the leading causes of disability worldwide. Individuals with an early onset, known as early-onset psychosis (EOP), tend to experience a worse prognosis and shorter life expectancy. The etiology of EOP remains unclear, but hypotheses suggest that both environmental and biological factors interact in its development. Epigenetic mechanisms are known to serve as the interface between environmental exposures and biological processes, emerging as potential tools to better understand the etiology of EOP. We characterized the sociodemographic and clinical characteristics, as well as genome-wide epigenetic markers, in Mexican patients with EOP. We found that patients with EOP have a higher epigenetic age using Wu`s clock (p=0.015). In addition, we observed that a reduction in years of schooling is associated with an increase in epigenetic age (Levine clock, =5.07, p=0.001). In our epigenome-wide association study, we identified eight CpGs associated with EOP. Noteworthy, a psychosis-methylation risk score (EOP-MRS) was associated with panic disorder (=1.36, p=0.03), as well as auditory (=1.28, p=0.04) and visual (=1.22, p=0.04) hallucinations. In conclusion, years of education have an impact in epigenetic age. Additionally, our study suggests associations of DNA methylation with EOP. Finally, we developed an MRS that associates clinical manifestations of psychosis.