Christos Sikaras

Dr. Christos Sikaras

Sotiria Thoracic Diseases Hospital of Athens, University of the Peloponnese, Trípoli, Peloponnísos, Greece
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Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

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

Representative Publications

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11 August 2009 in Human Resources for Health
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DBDionisios Bratis
Dionisios Bratis
Athanassios TselebisAthanassios Tselebis
Athanassios Tselebis
Christos SikarasChristos Sikaras
Christos Sikaras
AMAikaterini Moulou
Aikaterini Moulou
KGKonstantinos Giotakis
Konstantinos Giotakis
Ioannis IliasIoannis Ilias
Ioannis Ilias
Few studies have examined the relation between alexithymia (i.e. the inability to recognize and verbalize emotions) and professional burnout. Considering the absence of relevant studies in the Greek scientific literature, the aim of this work was to examine the associations of alexithymia with the three facets of professional burnout, the perception of family support and depression in nursing personnel.

26 October 2020 in Healthcare
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Athanassios TselebisAthanassios Tselebis
Athanassios Tselebis
DLDimitra Ilia Lekka
Dimitra Ilia Lekka
Christos SikarasChristos Sikaras
Christos Sikaras
ETEffrosyni Tsomaka
Effrosyni Tsomaka
ATAthanasios Tassopoulos
Athanasios Tassopoulos
Argyro PachiArgyro Pachi
Argyro Pachi
The COVID-19 pandemic is likely to cause mental health issues, especially for healthcare professionals. The aim of this study was to investigate levels of perceived stress, insomnia, and the sense of family support among nurses in pandemic conditions. We administered in a sample of 150 nurses from different hospital departments during the COVID-19 pandemic the Athens Insomnia Scale (AIS), Perceived Stress Scale (PSS), and Family Support Scale (FSS). Individual and demographic data were recorded. In total, 120 women and 30 men completed the study questionnaires. Almost half of the participants (49.7%) reported the presence of insomnia and more than half (50.3%) experienced increased stress levels. Scores on the Athens Insomnia Scale correlated positively with Perceived Stress Scale scores (p < 0.01), and negatively with Family Support Scale scores (p < 0.01). Significantly negative correlations were observed among scores on the Perceived Stress Scale and the Family Support Scale (p < 0.01). The regression models revealed that ‘scores on Perceived Stress Scale’ and ‘years of work experience’ were significant predictors of ‘scores on Athens Insomnia Scale’, each explaining 43.6% and 2.3% of the variance. ‘Scores on Athens Insomnia Scale’ and ‘scores on Family Support Scale’ were significant predictors of ‘scores on Perceived Stress Scale’, explaining 43.7% and 9.2% of the variance. In conclusion, we confirmed that working with COVID-19 patients has a negative impact on the sleep of nurses, possibly mediated by increased levels of stress. Family support, as a protective factor, appears to moderate the deleterious consequences of stress.

1 January 2021 in AIMS Public Health
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Christos SikarasChristos Sikaras
Christos Sikaras
IIIoannis Ilias
Ioannis Ilias
ATAthanasios Tselebis
Athanasios Tselebis
APArgyro Pachi
Argyro Pachi
SZSofia Zyga
Sofia Zyga
APAspasia Panagiotou
Aspasia Panagiotou
Introduction The coronavirus pandemic (COVID-19) is an unprecedented global health crisis with emotional and physical impact on health care workers. Objective The purpose of this study was to investigate the levels of fatigue and burnout in nursing staff during the pandemic. Methods The present study involved nursing staff from hospitals in Greece in February 2021, who completed the Fatigue (FAS) and Burnout (CBI) questionnaires. Gender, age, years of work experience, workplace (COVID-19 or non-COVID-19 wards) and SARS-CoV-2 infection status were recorded. Results The sample included 593 women and 108 men, with a mean age ± SD: 42.9 ± 9.9 years and 18.14 ± 10.8 years work experience. Slightly more than half, (367, 52.4%) worked in COVID-19 departments. Fifty-six (8%) tested positive for SARS-CoV-2 and 14 of them needed to be treated. The mean ± SD FAS and CBI scores were 25.6 ± 7.4 and 46.9 ± 18.8, respectively (67.9% and 42.9% had scores suggestive of fatigue and burnout, respectively). Women showed higher values in both scales (p < 0.01). Subjects working in COVID-19 wards scored significantly higher on both the FAS and CBI scales; they were also younger and with less work experience (p < 0.01). Staff treated for COVID-19 scored higher on the burnout scale (p < 0.01) than the uninfected staff. Fatigue showed a strong positive correlation with burnout (p < 0.01, r = 0.70). Stepwise multiple regression showed that the variation of fatigue was explained by 47.0% and 6.1% by the scores on the subscales of personal and work-related burnout, respectively. Conclusion In conclusion, high rates of fatigue and burnout were found in the studied population. Nurses working with COVID-19 patients had higher rates of fatigue and burnout compared to those working elsewhere. There was a strong positive correlation (r = 0.70) between burnout and fatigue. Particular attention should be paid to staff who became ill and need to be treated.

10 January 2022 in Healthcare
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Argyro PachiArgyro Pachi
Argyro Pachi
Christos SikarasChristos Sikaras
Christos Sikaras
Ioannis IliasIoannis Ilias
Ioannis Ilias
APAspasia Panagiotou
Aspasia Panagiotou
Sofia ZygaSofia Zyga
Sofia Zyga
Athanassios TselebisAthanassios Tselebis
Athanassios Tselebis
During the COVID-19 pandemic, the risk to nurses’ mental health has increased rapidly. The aim of the study was to investigate the prevalence of depression and burnout and to evaluate their possible association with the sense of coherence in nursing staff during the pandemic crisis. The Copenhagen Burnout Inventory questionnaire, Beck’s Depression Inventory, and the Sense of Coherence questionnaire were completed by 101 male and 559 female nurses. Individual and demographic data were recorded. Regarding depression, 25.5% of respondents exhibited mild depression, 13.5% moderate depression and 7.6% severe depression. In the burnout scale, 47.1% had a pathological value. Female nurses had higher burnout (t test p < 0.01, 49.03 vs. 38.74) and depression (t test p < 0.01, 11.29 vs. 6.93) scores compared to men and lower levels in the sense of coherence (p < 0.05, 59.45 vs. 65.13). Regression evidenced that 43.7% of the variation in the BDI rating was explained by the CBI, while an additional 8.3% was explained by the sense of coherence. Mediation analysis indicated a partial mediation of burnout in the correlation between sense of coherence and depression. The sense of coherence acted as a negative regulator between burnout and depression.

10 February 2025 in Journal of Clinical Medicine
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Argyro PachiArgyro Pachi
Argyro Pachi
Christos SikarasChristos Sikaras
Christos Sikaras
DMDimitrios Melas
Dimitrios Melas
SASofia Alikanioti
Sofia Alikanioti
NSNikolaos Soultanis
Nikolaos Soultanis
Athanassios TselebisAthanassios Tselebis
Athanassios Tselebis
Background/Objectives: Several studies have reported alarming rates of mental health issues and sleep problems among nurses even in the post-pandemic era. The objective was to investigate the prevalence of stress, anxiety and depressive symptoms, burnout and insomnia among nurses in Greece one year after the end of the pandemic and to construct a mediation model evaluating the impact of stress on insomnia, the chain mediating roles of depressive symptoms and burnout, as well as the moderating role of anxiety symptoms in the model. Methods: This cross-sectional study was conducted online in July 2024 and included 380 hospital nurses who completed the Depression Anxiety Stress Scale (DASS-21), the Copenhagen Burnout Inventory (CBI) and the Athens Insomnia Scale (AIS). Results: The prevalence rates of stress, anxiety and depressive symptoms, burnout and insomnia were 33.9% with 95% confidence interval (CI): [0.292, 0.390], 33.3% (95% CI: [0.284, 0.381]), 35% (95% CI: [0.302, 0.400]), 46.8% (95% CI: [0.399, 0.502]) and 56.1% (95% CI: [0.509, 0.611]), respectively. Multiple regression analysis indicated that the Depression subscale of the DASS-21 explained 40.6% of the variance in the AIS, while an additional 7.6% was explained by the CBI and another 1.3% rate by the Stress subscale of the DASS-21. Mediation analysis revealed that stress affected insomnia both directly and indirectly through the chain mediating roles of depressive symptoms and burnout. Anxiety symptoms moderated the chain mediation path by enhancing the negative impact of stress on depressive symptoms. Conclusions: The proposed moderated chain mediation model introduces certain factors influencing insomnia and explains how changes in any one of these factors effectuate changes in the other factors, offering insights for individualized interventions.

1 January 2011 in Asia Pacific Family Medicine
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Athanassios TselebisAthanassios Tselebis
Athanassios Tselebis
TATania Anagnostopoulou
Tania Anagnostopoulou
DBDionisios Bratis
Dionisios Bratis
AMAikaterini Moulou
Aikaterini Moulou
AMAlexia Maria
Alexia Maria
NTNikolaos E Tzanakis
Nikolaos E Tzanakis
The Julkunen Family Support Scale aims to record the sense of support that a subject receives from the members of his family. The object of the present study was to investigate the reliability and to assess the validity of the Greek translation of the Julkunen Family Support Scale in Greek health care professionals in a public general hospital.