Current Organizations / Institutes

The organizations/institutes from the scholar's latest article


Joannes Chliaoutakis has a total of 94 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    Ordinal Logistic Regression as a Tool To Estimate the Risk of Escalating Outcomes. An Application to Vehicle Crash Data

    by Charalambos Gnardellis, Venetia Notara, Georgia Tzamalouka, Maria Papadakaki, Joannes Chliaoutakis

    The use of logistic regression models in data analysis and machine learning has expanded in recent years and has become the primary preference of researchers in risk assessment studies across a wide range of scientific fields. From the assessment of credit risk in financial institutions to the estimation of risk factors for traffic accidents or the identification of etiological factors for chronic diseases. All logistic models are natural extensions of the simple binary model, and their interpretation is based on it. Using the data of a cross-sectional study on the risk factors of traffic collisions, the two main extended models of logistic techniques, multinomial and ordinal logistic regression, are presented in the article in detail. Emphasis is placed on the use of ordinal regression since the outcome variable of the collision data is defined as ordinal measurement reflecting a latent continuous scale.

  • Open Access

    Male victims of intimate partner violence in Greece during the Covid-19 pandemic: prevalence and risk factors

    by Maria Papadakaki, Roxane Eftychidi, Joannes Chliaoutakis

    Background: Male victimization is neglected both in research and policy. Social stereotypes serve as a barrier in prevention and efficient management of the problem. The current study aimed at exploring the manifestation of violence against male and the factors associated with its occurrence,...

  • Open Access

    Driving Behaviour in Depression Based on Subjective Evaluation and Data from a Driving Simulator

    by Vagioula Tsoutsi, Maria Papadakaki, George Yannis, Dimosthenis Pavlou, Maria Basta, Joannes Chliaoutakis, Dimitris Dikeos

    Road traffic collisions are a major issue for public health. Depression is characterized by mental, emotional and executive dysfunction, which may have an impact on driving behaviour. Patients with depression (N = 39) and healthy controls (N = 30) were asked to complete questionnaires and to drive on a driving simulator in different scenarios. Driving simulator data included speed, safety distance from the preceding vehicle and lateral position. Demographic and medical information, insomnia (Athens Insomnia Scale, AIS), sleepiness (Epworth Sleepiness Scale, ESS), fatigue (Fatigue Severity Scale, FSS), symptoms of sleep apnoea (StopBang Questionnaire) and driving (Driver Stress Inventory, DSI and Driver Behaviour Questionnaire, DBQ) were assessed. Gender and age influenced almost all variables. The group of patients with depression did not differ from controls regarding driving behaviour as assessed through questionnaires; on the driving simulator, patients kept a longer safety distance. Subjective fatigue was positively associated with aggression, dislike of driving, hazard monitoring and violations as assessed by questionnaires. ESS and AIS scores were positively associated with keeping a longer safety distance and with Lateral Position Standard Deviation (LPSD), denoting lower ability to keep a stable position. It seems that, although certain symptoms of depression (insomnia, fatigue and somnolence) may affect driving performance, patients drive more carefully eliminating, thus, their impact.


  • Open Access

    Overestimation of Relative Risk and Prevalence Ratio: Misuse of Logistic Modeling

    by Charalambos Gnardellis, Venetia Notara, Maria Papadakaki, Vasilis Gialamas, Joannes Chliaoutakis

    The extensive use of logistic regression models in analytical epidemiology as well as in randomized clinical trials, often creates inflated estimates of the relative risk (RR). Particularly, in cases where a binary outcome has a high or moderate incidence in the studied population (>10%), the bias in assessing the relative risk may be very high. Meta-analysis studies have estimated that about 40% of the relative risk estimates in prospective investigations, through binary logistic models, lead to extensive bias of the population parameters. The problem of risk inflation also appears in cross-sectional studies with binary outcomes, where the parameter of interest is the prevalence ratio. As an alternative to the use of logistic regression models in both longitudinal and cross-sectional studies, the modified Poisson regression model is proposed.


  • Open Access

    Perceived Knowledge and Attitudes of Faculty Members towards Inclusive Education for Students with Disabilities: Evidence from a Greek University

    by Maria Papadakaki, Anastasia Maraki, Nikolaos Bitsakos, Joannes Chliaoutakis

    The current paper aimed at investigating factors affecting the perceptions and attitudes of faculty members towards inclusive education for students with disabilities in a Greek University. A questionnaire, based on the “Expanding Cultural Awareness of Exceptional Learners-ExCEL” was distributed online to 311 faculty members, during the first semester of 2020. The questionnaire explored participants’ sociodemographic and academic background, prior training and personal experience with disability, perceived knowledge, beliefs and attitudes towards inclusive education practices. A total of 80 questionnaires were completed (males 56.3%; aged 41–50 years 43.7%; working experience > 16 years 52.4%; prior training on disability 77.5%). Factor analysis identified four constructs relevant to: (a) perceived knowledge regarding the legal framework (“Perceived Knowledge”), (b) intention towards the provision of general accommodations in class (“Help in Class”), (c) intention towards resource provision (“Material Offer”), and (d) beliefs about the provision of accommodations to students with disabilities (“Negative Attitude”). Gender, faculty subject and prior training on disability were shown to affect the participants’ “Perceived Knowledge”, while working position was shown to affect “Material Offer”. Age, working experience, and personal experience with disability did not reveal any significant effect. More research is needed to investigate the attitudinal and practical barriers of faculty members towards meeting students’ educational needs.


  • Open Access

    A Qualitative Study of Female Migrant Domestic Workers’ Experiences of and Responses to Work-Based Sexual Violence in Cyprus

    by Christiana Kouta, Christalla Pithara, Zoe Apostolidou, Anna Zobnina, Josie Christodoulou, Maria Papadakaki, Joannes Chliaoutakis

    Domestic workers face increased risk for sexual harassment and assault in the workplace but are often reluctant to disclose abuse or seek retribution. We report on a study looking at migrant domestic workers’ responses to sexual violence, reasons behind their responses, and factors enhancing or diminishing vulnerability to abuse. We carried out qualitative, in-depth, individual and group interviews with 15 female domestic workers from the Philippines and Sri Lanka working in the Republic of Cyprus. Descriptive thematic analysis was used to analyse data using QSR NVivo 10.0. Sexual violence against migrant domestic workers was reported to be rampant, particularly among women living with their employer. Perpetrators took advantage of women’s precarious legal, social, and economic circumstances to coerce women into a sexual relationship. All participants reported taking action to stop attacks despite the significant barriers they faced: racism and discrimination, social isolation, and hostile legal, labour, and immigration systems. Fear of losing their job, being deported, and facing racism and discrimination from the police were the biggest barriers to seeking retribution. Access to informational, e.g., legal, practical, and emotional support, facilitated positive outcomes following abuse, such as finding a new employer. Systemic racism, hostile labour and immigration systems, and lack of support increase risk of sexual violence and place barriers against accessing safe working spaces, protection, and justice. Women need to be informed of the risks involved in domestic work and empowered to identify abuse and access help and support when needed.


  • Open Access

    Migrant Domestic Workers’ Experiences of Sexual Harassment: A Qualitative Study in Four EU Countries

    by Maria Papadakaki, Nikoleta Ratsika, Lina Pelekidou, Brigitte Halbmayr, Christiana Kouta, Katrin Lainpelto, Miran Solinc, Zoe Apostolidou, Josie Christodoulou, Andrej Kohont, et al.

    Sexual harassment against female migrant domestic workers is a public health problem, which remains hidden and largely underreported. The current paper presents the results of a qualitative research study on sexually victimized migrant domestic workers in four European countries (Austria, Cyprus, Greece, and Sweden). The study aimed at exploring the profile and experiences of victimised individuals. Data were gathered via 66 semi-structured interviews with victimised female migrant domestic workers. Key findings of the current study indicate that the victims: (a) were usually undocumented and had low local language skills; (b) identified domestic work as the only way into the labour market; (c) suffered primarily psychological, economic, and social consequences; (d) had poor social support networks; (e) were poorly connected to governmental support services. This is the first study to explore this hidden problem via direct contact with victims. Addressing barriers of migrants’ social integration seems important. Better regulation and monitoring of this low-skilled occupation could minimise risks for vulnerable employees.


  • Open Access

    Testing the Effectiveness of a Mixed-Method Pilot Intervention in Reducing Risky Driving Due to Aggression and Stress

    by Maria Papadakaki, Nikolaos Stamou, Stefanos Bessas, Stavroula Lioliou, Jooannes Chliaoutakis

    The study aimed at testing the effectiveness of a mixed-method pilot intervention in reducing risky self-reported driving performance, upon addressing stress and aggression while driving. The study recruited individuals who had performed these behaviors during the year preceding the study and allocated them into an intervention (n = 10) and a control group (n = 30). A pre-and postintervention evaluation design was employed to explore changes in risky self-reported driving behaviors, 12 months after the intervention. The intervention involved 2 h of experiential instruction and 1 h of cognitive restructuring using a driving simulator and scenarios appropriate for the processing of driving stress, aggression, and risk. The intervention group displayed significant improvements in the scales of “Hazard Monitoring” (p = 0.037) and “Covered Violations” (p = 0.049) at the postintervention level. No statistically significant differences were identified in terms of self-reported driving performance between the intervention and the control group at postintervention level. Launching large-scale experimental surveys with broadened cognitive restructuring approaches seems important to deepen our understanding of the behavioral change processes and increase the effectiveness of future interventions.


  • Open Access

    Is Sexual Assault a Problem in Greek Prisons? Initial Evidence from a Greek Male Prison

    by Maria Papadakaki, Angelos Tsalkanis, Dimitra Prokopiadou, Martha Goutsou, Joannes Chliaoutakis

    This study aimed to explore the problem of inmate sexual victimization in a Greek male prison. A total of 400 individuals were approached in the largest Greek male prison and 50 individuals participated. The questionnaire examined sociodemographic, offence-related information, sexual victimization during incarceration, experiences of witnessing the sexual coercion of other inmates, and history of sexual victimization. Thirteen (26.0%) participants reported sexual victimization by an inmate, including either “only non-penetrative” or “only penetrative ones” or “both penetrative and non-penetrative” ones. The victimized participants also performed worse in child sexual victimization and self-esteem scores as compared with the non-victimized ones. Vulnerable groups identified in the current study could receive further attention in future studies and policy initiatives. Large-scale surveys could be designed to extend our knowledge on this neglected area of research.


  • Physical, psychological and economic burden of two-wheel users after a road traffic injury: Evidence from intensive care units of three EU countries

    by Maria Papadakaki, Angelos Tsalkanis, Markos Sarris, George Pierrakos, Ottavia Eleonora Ferraro, Maria-Angeliki Stamouli, Chiara Orsi, Dietmar Otte, Georgia Tzamalouka, Timo Lajunen, et al.