César Jiménez-Vaquero

Dr. César Jiménez-Vaquero

orcid
Universidad de Salamanca

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

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

Representative Publications

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8 March 2023 in BMJ Open
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Journal Article
Open access
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CJCésar Jiménez-Vaquero
César Jiménez-Vaquero
RARosario Alonso-Domínguez
Rosario Alonso-Domínguez
IGIrene A Garcia-Yu
Irene A Garcia-Yu
AMAna M Martín-Nogueras
Ana M Martín-Nogueras
NSNatalia Sánchez-Aguadero
Natalia Sánchez-Aguadero
JRJosé-Ignacio Recio
José-Ignacio Recio
Introduction Sleep problems are a growing public health concern being related, among others, to an increased risk of cardiovascular diseases or worse cognitive functioning. In addition, they can affect aspects related to personal motivation and quality of life. However, very few studies have analysed the possible determinants of sleep quality in the adult population as a whole, establishing patterns based on these determinants. The objectives are to evaluate the determinants of sleep quality in a representative sample of the general adult population between 25 and 65 years old, and to establish patterns of sleep quality based on lifestyles, psychological factors, morbidities, sociodemographic variables, biological markers and other possible determinants. Methods and analysis Descriptive observational cross-sectional study. The study population will include a representative sample of 500 people between 25 and 65 years old from the cities of Salamanca and Ávila (Spain) selected by random sampling stratified by age groups and sex. A 90-minute visit will be performed, during which sleep quality will be assessed. The variables collected will be: morbidity, lifestyles (physical activity, diet, toxic habits), psychological factors (depression, stress, occupational stress and anxiety), socioeconomic and work-related variables, habitability conditions of the habitual residence and rest area, screen time, relaxation techniques and melatonin as a biological marker related to sleep quality. Discussion With the results of this work, improved interventions for behaviour modification could be designed, as well as intervention and education programmes or other research aimed at improving sleep quality. Ethics and dissemination This study has a favourable opinion from the Ethics Committee for Drug Research of the Health Areas of Salamanca and Ávila (CEim Code: PI 2021 07 815). The results of this study will be published in international impact journals of different specialties. Trial registration number NCT05324267.

3 October 2023 in Revista de Innovación y Buenas Prácticas Docentes
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MGMarta González
Marta González
CJCésar Jiménez-Vaquero
César Jiménez-Vaquero
ALAinhoa Lozano-Molina
Ainhoa Lozano-Molina
Beatriz María Bermejo-GilBeatriz María Bermejo-Gil
Beatriz María Bermejo-Gil
La simulación clínica es una forma de enseñanza que se está implantando en muchas facultades cmo método de formación que permite llevar a la práctica actuaciones clínicas en un entorno realista y sib riesgo para los pacientes. Permite también, mejorar las habilidades de comunicación de los estudiantes, la autoeficacia, la competencia clínica y las habiliadades de resolución de problemas. El Grado de Enfermería de la Escuela Universitaria de Ávila, centro adscrito a la Universidad de Salamanca, implementa en el curso 2021-22, la simulación con metodología MAES cmo nuevo sistema de aprendizaje.El objetivo de este estudio es evaluar la satisfacción de los estudiantes del Grado de Enfermería con la Simulación Clínica de Alta Fidelidad. La muestra está formada por los estudiantes de 2º, 3º y 4º curso (n=150) a los que se les administró el cuestionario de 15 items “Calidad y Satisfacción en el método de enseñanza-aprendizaje de Simulación Clínica". Los resultados obtenidos muestran que la simulación con metodología MAES es un método útil de enseñanza que motiva al aprendizaje y mejora las habilidades técnicas. Se observa también que los casos en escenarios simulados ayudan a priorizar las actuaciones de enfermería, al mismo tiempo que aumentan su seguridad y confianza, y que la metodología MAES fomenta el trabajo en equipo. Es necesaria una continua formación para poder darle a los casos simulados la duración y el contenido adecuados, integrando la teoría impartida en las aulas con la práctica en un entorno seguro, que complemente y capacite al alumnado de enfermería para la vida profesional.

12 December 2025 in Scientific Reports
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Journal Article
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CJCésar Jiménez-Vaquero
César Jiménez-Vaquero
JGJesús Gonzalez-Sanchez
Jesús Gonzalez-Sanchez
Rosario Alonso-DomínguezRosario Alonso-Domínguez
Rosario Alonso-Domínguez
IGIrene A. Garcia-Yu
Irene A. Garcia-Yu
NSNatalia Sanchez-Aguadero
Natalia Sanchez-Aguadero
JRJose I. Recio-Rodriguez
Jose I. Recio-Rodriguez
Poor sleep quality is associated with obesity, cardiovascular disease, cognitive impairment, increased hospitalization and mortality. Combining actigraphy with questionnaires effectively evaluates sleep. Age and sex shape both subjective sleep quality and objective actigraphic metrics; however, stratified estimates combining both approaches in Spanish adults are scarce. The aim of this study was to analyse the role of age and sex on sleep quality, in an age-sex stratified random sample of the general Spanish population. For this, it was carried out a cross-sectional descriptive study carried out in Salamanca and Ávila (Spain). The study population included a sample of 500 people aged 25-65 years selected by stratified random sampling by age and sex. Sleep quality was analysed using actigraphy and the Pittsburgh Sleep Quality Index-PSQI. Sociodemographic and clinical variables were also studied. The results were that men obtained a lower mean PSQI score than women. By age group, the poorer subjective sleep quality corresponded to the 25-years group, whereas the 45-year group had the lowest PSQI scores. Actigraphy showed higher efficiency in women. Men had more WASO, more awakenings and higher fragmentation. Midlife groups (35-45 years) showed lower efficiency and higher WASO. Trial registration number: NCT05324267.

4 November 2025 in BMJ Open
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Journal Article
Open access
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CJCésar Jiménez-Vaquero
César Jiménez-Vaquero
JGJesús González-Sánchez
Jesús González-Sánchez
RARosario Alonso-Domínguez
Rosario Alonso-Domínguez
IGIrene A Garcia-Yu
Irene A Garcia-Yu
NSNatalia Sánchez-Aguadero
Natalia Sánchez-Aguadero
JRJosé I Recio-Rodríguez
José I Recio-Rodríguez
Objective To identify sex-specific patterns based on determinants related to sleep quality, using a representative sample of the Spanish adult population. Design Cross-sectional, age-stratified and sex-stratified study. Setting Community-based assessments in two Spanish provinces (Salamanca and Ávila). Participants Adults aged 25–65 years (n=500), equally distributed by sex and five age strata, selected from the regional health-card database. Primary and secondary outcome measures Objective sleep metrics from wrist actigraphy (time in bed, total sleep time (TST), sleep efficiency, wake after sleep onset, number/duration of awakenings, fragmentation/movement indices) and self-reported sleep quality (Pittsburgh Sleep Quality Index). Methods Standardised baseline assessments collected sociodemographic, clinical, mental-health and lifestyle variables using validated instruments. Actigraphy (ActiGraph GT3X+) recorded triaxial acceleration at 30 Hz over 5 days; data were aggregated in 60 s epochs (ActiLife). Sleep/wake was classified with Cole-Kripke and nocturnal episodes identified with Tudor-Locke before deriving sleep indices. Two-step cluster analysis was applied separately by sex. Results Three clusters were identified for each sex, with age and educational level being the most influential factors. In men, the 65-year-old cluster with university education and lower anxious–depressive load showed the highest sleep efficiency (91.8±3.8%) and the lowest TST (351.7±74.8 min). In contrast, the 35-year-old cluster with middle or high school presented the lowest efficiency (88.3±10.0%) and higher TST (368.1±83.8 min). In women, the 55-year-old cluster with middle or high school and low emotional load showed the highest efficiency (93.6±2.8%), despite a reduced TST (352.0±79.7 min), while the 35-year-old cluster, with middle or high school and high levels of anxiety and depression, showed the worst efficiency metrics (89.5±3.9%) and a higher TST (394.8±67.3 min). Conclusion Sleep quality in Spanish adults is heterogeneous across sex-specific clusters shaped by age, education and mental-health burden. Cluster-based characterisation may support tailored public-health interventions. Trial registration number NCT05324267.

Verified
Journal Article
Open access
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IGIrene A Garcia-Yu
Irene A Garcia-Yu
ACAndrea Crespo
Andrea Crespo
CJCésar Jiménez-Vaquero
César Jiménez-Vaquero
JGJesus Gonzalez-Sanchez
Jesus Gonzalez-Sanchez
Rosario Alonso-DomínguezRosario Alonso-Domínguez
Rosario Alonso-Domínguez
JRJose Recio-Rodriguez
Jose Recio-Rodriguez
This study aimed to examine plasma melatonin levels, seasonal variation, and their association with sleep quality in adults aged 25–65 years using both the Pittsburgh Sleep Quality Index and actigraphy. A cross-sectional study was conducted in a stratified random sample of 500 adults from Salamanca and Ávila (Spain). Plasma melatonin was quantified by HPLC-DAD-MS/MS, and sleep quality was assessed using the Pittsburgh Sleep Quality Index and a 5-day wrist actigraphy protocol (ActiGraph GT3X+). Participants were stratified by age and sex, and seasonal variation was evaluated. Multivariable analyses were adjusted for relevant confounders. A total of 334 participants with valid melatonin measurements were included (mean age 43 years). Mean plasma melatonin concentration was 14.5 ± 15.9 pg/mL, with higher levels observed in men than women and a decreasing trend with age. A trend toward higher melatonin levels during winter was observed, although the differences were not statistically significant. No significant association was found between plasma melatonin levels and Pittsburgh Sleep Quality Index scores. However, higher melatonin levels were associated with slightly greater sleep efficiency measured by actigraphy. Participants reporting melatonin supplement use showed higher Pittsburgh Sleep Quality Index scores and lower total sleep time compared with non-users. Overall, plasma melatonin levels varied by sex, age, and season but showed no association with subjective sleep quality, while a modest relationship was observed with objective sleep efficiency, suggesting that melatonin alone is not a strong determinant of perceived sleep quality and highlighting the multifactorial nature of sleep regulation in adults.

1 August 2025 in Heridas y cicatrización. Revista de la Sociedad Española de Heridas (SEHER)
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Journal Article
Closed access
ALAinhoa Lozano-Molina
Ainhoa Lozano-Molina
ECElena Conde-Montero
Elena Conde-Montero
NMNieves Moro-Tejedor
Nieves Moro-Tejedor
MFMarta Fernández-Conde
Marta Fernández-Conde
EMElena Martín-González
Elena Martín-González
MMMaría Molina-Oliva
María Molina-Oliva
"Durante una estancia en Doga (Benín), profesionales de distintos ámbitos sanitarios se unieron para abordar un desafío silencioso pero devastador: las úlceras de Buruli. A través de un enfoque multidisciplinar, se trabajó no solo en el tratamiento médico de las lesiones, sino también en la promoción de hábitos higiénicos, la educación para la salud y el fortalecimiento del entorno social. El equipo intervino de manera integral, combinando la limpieza cuidadosa de heridas con acciones que fomentaran el acceso a agua segura, la concienciación sobre prácticas saludables y el empoderamiento local. Esta experiencia permitió observar de cerca cómo la coordinación entre distintos saberes puede transformar la evolución de una enfermedad que, aunque desatendida a nivel internacional, tiene profundas raíces en las condiciones socioeconómicas y ambientales. Más que un estudio, fue un ejercicio de humanidad compartida. Se aprendió que mejorar la higiene y el entorno cotidiano puede marcar la diferencia en la progresión de enfermedades como ésta. Y que, con compromiso y colaboración, se puede plantar una semilla de cambio duradero donde más se necesita."