Patient Knowledge, Medication Adherence, and Influencing Factors: A Cross-Sectional Study among Hypertensive Patients in Greece

This study aimed to investigate the knowledge of patients with hypertension about their condition, adherence to antihypertensive medication, and the factors influencing it. A cross-sectional study was conducted in two cardiology outpatient clinics of two tertiary hospitals, in Greece. The study included 188 patients diagnosed with hypertension. The patients' knowledge about their disease and adherence to medication were assessed by using the HK-LS and A-14 scales, respectively. Patients had sufficient knowledge levels about their disease, but significantly low levels of adherence to medication. Patients with higher knowledge levels were more adherent to medications [r(188) = 0.885, p < 0.001]. By using multivariate analysis, higher age (p = 0.018), residence in a more populous area (p = 0.041), more years with the disease (p = 0.012), and a lower number of medications (p = 0.03) were associated with higher levels of knowledge. Conversely, younger age (p = 0.036), lower educational levels (p = 0.048), fewer years with the disease (p = 0.001), and a higher number of medications (p = 0.003) were associated with lower adherence to medication. The Greek patients' hypertension knowledge was sufficient; however, adherence to medication was significantly low. Healthcare managers could utilize our findings to design targeted interventions for improving adherence to medication for these patients.

Evidence-Based Practice Competency of Registered Nurses in the Greek National Health Service

Nurses' competency toward evidence-based practice (EBP) has been extensively investigated by several studies worldwide. However, factors affecting the competence of Greek nurses working in the NHS have not been fully investigated in terms of EBP. Thus, this study aimed to explore the impact of the individual qualifications of nurses on their competence toward EBP. Data from 473 registered nurses working in 10 hospitals in the Greek National Health Service (NHS) were collected between October and December 2020 using a convenience sampling method in a cross-section design. The Greek version of the 35-item (five-point Likert scale) Evidence-Based Practice Competency Questionnaire for Professional Registered Nurses (EBP-COQ Prof) was used to assess the competence level of nurses, focusing on attitudes, skills, and knowledge, as well as the utilization of EBP in clinical practice. One-way ANOVA and Pearson coefficient tests were applied to compare the possible differences among variables (two or more groups) as appropriate. A multi-factorial regression model was applied to explore participants' qualifications, including demographics (MSc degree, gender, English language knowledge, etc.) as independent variables, and to control for potential confounding effects toward EBP competency. The p-values < 0.05 were considered statistically significant. The mean age of the 473 participants (402 women and 71 men) was 44.7 ± 9.2 years old. The mean value of competence subscales was found as follows: attitudes 3.9 ± 0.6, knowledge 3.7 ± 0.6, skills 3.1 ± 0.8, and utilization 3.4 ± 0.7. A multivariate regression analysis revealed that associates of "Master's degree" (t = 3.039, p = 0.003), "Writing an academic article" (3.409, p = 0.001), "Working in a University clinic" (2.203, p = 0.028), and "Computer Skills" (2.404, p = 0.017) positively affected "Attitudes", "Knowledge", "Skills", and "Utilization", respectively. The research data suggest that nurses working in the Greek NHS were limited in competence regarding EBP in comparison with other European countries. Therefore, vocational, educational, and training programs tailored to EBP enhancement are crucially important. This study was not registered.

The effect of an exercise-based rehabilitation programme in functional recovery and prevention of secondary falls after a hip fracture in older adults: A systematic review

We performed a systematic review to evaluate whether an exercise-based intervention programme, for older people with a hip fracture, is effective in functional recovery and in preventing secondary fall-related injuries. This systematic review was conducted according to Cochrane review guidelines and based on the PRISMA statement. Six electronic databases (Medline, PubMed, Cochrane Library, CIHNAL, Embase, Google Scholar) from 2010 to 31 December 2021 were searched for randomised controlled trials (RCTs) of functional recovery or fall prevention exercises after a hip fracture surgery in older people (≥65 years). Thirty-four references were identified initially, however, only 8 studies (1617 patients) met the eligibility criteria. Despite the heterogeneity of the onset, duration and of the characteristics of exercise-based intervention, as well as the type of setting it was delivered in, there was evidence that an exercise-based rehabilitation programme improved physical function and gait ability. There was no evidence about preventing a secondary fall after a hip fracture. In conclusion, an exercise-based intervention programme can generally improve functional recovery after a hip fracture. It remains uncertain if it affects the prevention of a secondary fall over a 1-year follow-up period.

Development and Validation of the CVP Score: A Cross-Sectional Study in Greece

Although central venous pressure (CVP) is among the most frequent estimated hemodynamic parameters in the critically ill setting, extremely little is known on how intensive care unit (ICU) nurses use this index in their decision-making process. The purpose of the study was to develop a new questionnaire for accessing how ICU nurses use CVP measurements to address patients' hemodynamics investigating its validity and reliability. A cross-sectional study was conducted among 120 ICU nurses from four ICUs of Greece. Based on a comprehensive literature review and the evaluation by a panel of five experts, a new questionnaire, named "CVP Score", was created, having eight items. The construct validity and the reliability of the questionnaire were examined. Half of the study participants (51.7%) worked at a specialized ICU, and they had a mean [±Standard Deviation (SD)] ICU experience of 13(±7.1) years. The estimated construct validity of the newly developed tool was acceptable, while the internal consistency reliability as measured by Cronbach alpha was excellent (0.901). CVP Score had acceptable test-retest reliability (r = 0.996, p < 0.001) and split-half reliability (0.855). The CVP score is a valid and reliable instrument for measuring how critical care nurses use CVP measurements in their decision-making process.

Distance Learning in Nursing Education during the COVID-19 Pandemic: Psychosocial Impact for the Greek Nursing Students-A Qualitative Approach

(1) Background: The COVID-19 pandemic posed a major threat to global health and on the educational field. The purpose of this study is to identify and illustrate the psychosocial adaptation of nursing students to the sudden and exclusive application of distance learning during the COVID-19 pandemic; (2) Methods: A qualitative interview research has been designed. Two focus groups of seven members each and six individual interviews were conducted in a sample of undergraduate nursing students in Greece from 3 March 2021, to 9 April 2021.; (3) Results: A qualitative thematic analysis of the data identified six themes: 1. Challenges; 2. Concerns; 3. Social changes; 4. Negative Emotions; 5. Evaluation; and 6. Teaching strategies.; (4) Conclusions: During its implementation, it identified gaps and weaknesses in the entire academic community. The study of the psychosocial adaptation of the academic community is considered crucial, as it can highlight the individual difficulties in distance learning and contribute to the improvement of the methods of its the improvement of its methods.

Nutritional assessment and quality of life in patients with non-small cell lung cancer undergoing immunotherapy

BACKGROUND

Patients with metastatic non-small cell lung cancer (NSCLC) often experience severe eating disorders and other problems because of rapid disease progression and various therapies, which significantly affect their quality of life (QoL).

AIMS

This study aimed to assess the nutritional status and QoL of patients with NSCLC at the start of immunotherapy and 3 months later.

METHODS

This study used a prospective, observational, consecutive sampling approach and was carried out between July 2018 and August 2019. The convenience sample comprised 60 patients treated in the oncology ward and the day care department of a public hospital in Greece. Their nutritional status was assessed using the Mini Nutritional Assessment questionnaire and their QoL using the European Organization for Research and Treatment of Cancer QLQ-C30 questionnaire and its QLQ-LC13 module. They were evaluated at the start of immunotherapy (phase I) and 3 months later (phase II).

FINDINGS

Of the initial 60 patients, 25% had died and 23.3% declined to participate by phase II. Of the 31 patients (51.7%) who completed the study, 64.5% had been assessed as malnourished at phase I; at phase II, this had decreased to 32.3%, so nutritional status appeared to have significantly improved. There were also significant improvements between phases I and II in global health status/QoL, as well as in the physical, roles, emotional and social dimensions. Additionally, all nine symptoms of QLQ-C30 significantly decreased, while the QLQ-LC13 showed significant improvements in dyspnoea, alopecia and pain in parts of the body other than the chest, arm or shoulder.

CONCLUSION

Metastatic NSCLC patients' QoL and nutritional status significantly improved after 3 months' immunotherapy.

Evaluation of Drug Interactions in Hospitalized Patients with Respiratory Disorders in Greece

Background: Patients with respiratory disorders often have additional diseases and are usually treated with more than one medication to manage their respiratory conditions as well as additional comorbidities. Thus, they are frequently exposed to polypharmacy (≥5 drugs), which raises the risk for drug-drug interactions (DDIs) and adverse drug reactions (ADRs). In this work, we present the results regarding the prevalence of DDIs in hospitalized patients with respiratory disorders in Greece. Methods: A 6-month descriptive single-center retrospective observational study enrolled 102 patients with acute or chronic respiratory disorders. Clinical characteristics and medication regimens were recorded upon admission, hospitalization, and discharge. The prevalence of DDIs and their clinical significance was recorded and analyzed. Results: Unspecified acute lower respiratory tract infection (25%), exacerbations of chronic obstructive pulmonary disease (12%) and pneumonia (8%) were the most frequent reasons for admission. Cardiovascular disorders (46%), co-existing respiratory disorders (32%), and diabetes (25%) were the most prevalent comorbidities. Polypharmacy was noted in 61% of patients upon admission, 98% during hospitalization, and 63% upon discharge. Associated DDIs were estimated to be 55% upon admission, 96% throughout hospitalization, and 63% on discharge. Pharmacodynamic (PD) DDIs were the most prevalent cases (81%) and referred mostly to potential risk for QT-prolongation (31.4% of PD-DDIs) or modulation of coagulation process as expressed through the international normalized ratio (INR) (29.0% of DDIs). Pharmacokinetic (PK) DDIs (19% of DDIs) were due to inhibition of Cytochrome P450 mediated metabolism that could lead to elevated systemic drug concentrations. Clinically significant DDIs characterized as "serious-use alternative" related to 7% of cases while 59% of DDIs referred to combinations that could be characterized as "use with caution-monitor". Clinically significant DDIs mostly referred to medication regimens upon admission and discharge and were associated with outpatient prescriptions. Conclusions: Hospitalized patients with respiratory disorders often experience multimorbidity and polypharmacy that raise the risk of DDIs. Clinicians should be conscious especially if any occurring arrhythmias, INR modulations, and prolonged or increased drug action is associated with DDIs.

Drug-Drug Interactions among Patients Hospitalized with COVID-19 in Greece

The modulation of the pharmacological action of drugs due to drug-drug interactions (DDIs) is a critical issue in healthcare. The aim of this study was to evaluate the prevalence and the clinical significance of potential DDIs in patients admitted to the University Hospital of Heraklion in Greece with coronavirus disease 2019 (COVID-19). Cardiovascular disorders (58.4%) and diabetes (types I and II) (29.6%) were the most common comorbidities. A high occurrence of DDIs was observed, and clinically significant DDIs that may hamper response to treatment represented 40.3% of cases on admission, 21% during hospitalization, and 40.7% upon discharge. Polypharmacy and comorbidities were associated with a higher prevalence of DDIs in a statistically significant way (p < 0.05, 95% CI). Clinically significant DDIs and increased C-reactive protein values upon admission were associated with prolonged hospitalization. The results reveal that patients admitted due to COVID-19 in Greece often have an additional burden of DDIs that healthcare teams should approach and resolve.

Translation, Adaptation and Validation of the Pandemic Fatigue Scale (PFS) in the Greek Language

The growing fatigue of citizens due to the COVID-19 pandemic has already been addressed and its results are visible and threatens citizen compliance. The aim of this study was to translate and validate the Pandemic Fatigue Scale (PFS) in the Greek language. A cross-sectional study was conducted between October 2021 to March 2022. The translation and cultural adaptation process was developed according to the research protocols among the university student population in Cyprus and tested the psychometric properties of PFS. Three hundred thirty-four subjects participated in the study through a web survey, which included general information and the study process. The internal consistency for the total PFS showed good reliability (six items, a = 0.88). A weak statistically significant positive correlation was found between the PFS and the Greek versions of Generalised Anxiety Disorder Assessment—GAD-7 (r = 0.1.96; p < 0.001) and the PFS and Patient Health Questionnaire—PHQ-9 (r = 0.173; p = 0.002) demonstrating good concurrent validity. Recovering from the pandemic, it is necessary to build systems to detect and respond to future healthcare crises. The results suggest that the psychometric properties of the Greek PFS are satisfactory. The measure of pandemic fatigue allows for identifying fatigue groups for targeted interventions and testing how pandemic fatigue might be reduced in such situations.

Translation and Validation of the Greek Version of the Evidence-Based Practice Competency Questionnaire for Registered Nurses (EBP-COQ Prof©)

(1) Background: Evidence-based nursing is the benchmark of the nursing profession. It is widely recognized that evidence enhances knowledge, skills, and competencies in nursing education and thus the quality of patient care. Although several proposals have been introduced to reinforce nurses through education in evidence-based practice (EBP) for clinical practice, there is no validated EBP competence tool to determine how nurses approach evidence-based nursing in healthcare practices in Greece. Therefore, the aim of the present study was to translate and validate the Greek version of the Evidence-Based Practice Competency Questionnaire, Professional version (EBP-COQ Prof©). (2) Methods: A cross-sectional study was conducted in a sample of registered nurses working in the public sector. (3) Results: 414 clinical nurses were recruited in total with a response rate of 75.3% and a mean age of 43 years old. Most of the nursing personnel were females, 354 (85.5%), and there were 60 (14.5%) males. Confirmatory factor analysis (CFA) showed a confirmation of the developer's four-factor design. The estimated association between items on each scale showed a strong relationship. The competence questionnaire showed a high internal consistency between the components of attitude, knowledge, skills, and utilization. (4) Conclusions: The competence questionnaire shows a strong relationship between four the components, highlighting the four factors that should be promoted to improve the use of EBP nursing practices.

Self-Assessment of Health Professionals' Cultural Competence: Knowledge, Skills, and Mental Health Concepts for Optimal Health Care

Current research often refers to cultural competence to improve health care delivery. In addition, it focuses on the cultural uniqueness of each health service user for optimal personalized care. This study aimed to collect self-assessment data from health professionals regarding their cultural competence and to identify their development needs. A mixed methods design was adopted using the Cultural Competence Self-assessment Checklist of the Central Vancouver Island Multicultural Society. This was translated into Greek, validated, and then shared with health professionals in Cyprus. Subsequently, a semi-structured interview guide was designed and utilized. This was structured in exactly the same question categories as the questionnaire. Data collection took place between October 2021 and May 2022, and convenience sampling was used to recruit 499 health scientists in Cyprus. The sample comprised doctors, nurses, psychologists, midwives, social workers, and physiotherapists. Subsequently, 62 interviews were conducted with participants from the same specialties. The results showed that (compared to other health professionals) nurses and psychologists are more sensitive to issues of cultural competence. It would appear that the more socially oriented sciences had better-prepared healthcare staff to manage diversity in context. However, there is a gap between knowledge and skills when comparing doctors to nurses; they seem to be more skilled and willing to intervene actively in cases of racist behavior or problem-solving. In conclusion, participants identified the importance of their cultural competence; they also realized the importance of optimal planning of personalized health care. There is a significant need for continuous and specialized cultural competence training for all health professions.

Participatory Action Research for Tackling Distress and Burnout in Young Medical Researchers: Normative Beliefs before and during the Greek Financial Crisis

(1) Background: We aimed to explore Young medical researchers (YMR) normative beliefs and perceived causes of distress and burnout, prior and during the financial crisis in Greece, and to assess their views on Participatory Action Research (PAR) interventions towards tackling these disorders. (2) Methods: A Participatory Learning and Action (PLA) methodology was performed in two time periods (prior crisis: December 2008; during crisis: February-March 2017). In both time periods, three different groups (Group 1: females, Group 2: males, Group 3: mixed) of 5-7 participants and two sessions (≈1 h/session) per group took place in each site. Overall, 204 sessions with 1036 YMR were include in the study. (3) Results: Several socio-demographic characteristics of YMR altered during the crisis (lower income, higher smoking/alcohol consumption, etc.). The majority of YMR conceived distress and burnout as serious syndromes requiring professional support. Feeling very susceptible and the necessity for establishing PAR interventions were frequently reported during the crisis. Numerous (a) barriers and (b) cues to action were mentioned: (a) lack of time, money and support from friends/family/colleagues (b) being extensively informed about the intervention, participation of their collaborators, and raising awareness events. (4) Conclusions: The changing pattern of Greek YMR's beliefs and needs during the crisis stresses the necessity of interventions to tackle distress and burnout. Effectiveness of these interventions could be enhanced by the suggested cues to action that emerged from this study.

Decreased Hospital Visits and Increased Mortality Rate in Emergency Department during the COVID-19 Pandemic: Evidence from Albania

Objective:

To investigate the hospital visits and mortality rate during the COVID-19 in emergency department of Vlora regional hospital in Albania and to compare with the three previous years (2017–2019).

Methods:

Secondary data of patients that visited emergency department of Vlora Regional hospital Albania (largest hospital in the south of the country), since January 1, 2017 till December 31, 2020. This is a retrospective study. We used the hard copy of the patients’ health register records. The data extraction was conducted during March 2021 till June 2021. Eligible were all patients admitted and recorded in the registry of the emergency department. The causes of admission were categorized in 14 different disease categories. All registered patients admitted to the Vlora regional hospital were included in the study.

Results:

Study population included 44,917 patients during 2017–2020. Mean age of patients was 51.5 years, while 53.6% were females. The highest number of patients was in 2017 (n=12,407) and the lowest in 2020 (n=9,266). Increase of patients presented with cardiovascular, psychiatric and renal/urinary tract was observed in 2020 in comparison to 2019. Patients decreased over time with an average annual percent decrease of 7% (p-value=0.22). Joinpoint analysis revealed that mortality rate increased over time with an average annual percent increase of 34.3% (95% confidence interval=42.7% to 214.8%, p-value=0.27).

Conclusions:

The number of patients visiting emergency department decreased while mortality rate increased. Educating and raising awareness of patient to seek medical assistance should be a key objective of health policy makers and health personnel.

Predictors of nurses' intention to accept COVID-19 vaccination: A cross-sectional study in five European countries

AIMS AND OBJECTIVES

To investigate nurses' intention in accepting COVID-19 vaccination and the factors affecting their decision.

BACKGROUND

COVID-19 vaccination has started in most European countries with healthcare personnel being the first group receiving the vaccine shots. Their attitude towards vaccination is of paramount significant as their role in the frontline could help in the awareness of general population.

METHODS

A study was conducted in Albania, Cyprus, Greece, Spain and Kosovo with the use of an online questionnaire. The Fear of COVID-19 Scale was used. The STROBE checklist was followed for this cross-sectional study.

RESULTS

Study population consisted of 1135 nurses. Mean age of the participants was 38.3 years, while most of them were female gender (84.7%) and married (53.1%). Acceptance of a safe and effective COVID-19 vaccine was higher among Greek (79.2%) and Spanish (71.6%) nurses, followed by Cypriot (54%), Albanian (46.3%) and Kosovo (46.2%) nurses. Key factors for willingness to get vaccinated were male gender, living in a country with a high mortality rate in comparison with low mortality, being not infected with COVID-19, having high level of knowledge about COVID-19 vaccines and having been vaccinated for influenza in the last 2 years. Moreover, trusting the government and doctors regarding the information about the COVID-19 and having high level of fear about this virus were key factors for willingness to get vaccinated.

CONCLUSION

Vaccination of healthcare personnel is a crucial issue not only for their own safety but also for their patients'. Healthcare acceptance to get vaccinated can work as a role model for general population.

RELEVANCE TO CLINICAL PRACTICE

Gender, country, mortality rate, trust in government and health professionals and the level of fear were key factors that should be managed in clinical practice.

Epidermolysis Bullosa: A case study in Cyprus and the nursing care plan

PURPOSE

To present a case study with Epidermolysis bullosa (EB) in Cyprus and to determine the nursing care plan, explaining the nursing interventions and showing the importance of nursing care of patients with EB.

METHODS

Literature review on EB and semi-structured interviews commenced through a direct discussion with open-ended questions to the research subject as well as to a close relative describing his feelings, experiences, and concerns about the disease.

FINDINGS

Thematic analysis approach was used to identify and analyze patterns in the data. Then, data were synthesized using the standardized nursing terminology of NANDA-I and the Nursing Interventions Classification. The accuracy of the diagnoses and the appropriateness of the nursing interventions were supported by the positive health outcomes of the patient.

CONCLUSIONS

Nurses should apply evidence-based practice interventions for EB wound care, pain management, nutrition, psychological and social support to these patients.

IMPLICATIONS FOR NURSING PRACTICE

Although EB is classified in the category of rare diseases, the presentation of a case study in Cyprus and the nursing care plan contribute further bibliographically to the holistic and at the same time individualized nursing practice.

Assessment of COVID-19 Fear in Five European Countries before Mass Vaccination and Key Predictors among Nurses and Nursing Students

Background: Levels of fear have increased since the COVID-19 pandemic outbreak. The absence of a safe and effective vaccine for mass-vaccination deteriorates this situation, which has a significant impact on mental health. This study aimed to assess the feelings of fear among nurses and nursing students in five European countries. Methods: A multicenter cross-sectional study was conducted in five European countries (Greece, Albania, Cyprus, Spain, and Kosovo) before the start of mass vaccination in Europe. Data collection was conducted in December 2020–January 2021 using an online questionnaire for nursing students and professional nurses. Fear of COVID-19 Scale (FCV-19S) was used for measuring levels of fear. IBM SPSS version 21.0 was used for statistical analysis. Results: The study population included 1135 nurses and 1920 nursing students from Kosovo (n = 1085), Spain (n = 663), Greece (n = 534), Albania (n = 529), and Cyprus (n = 244). According to multivariable analysis, females (OR = 2.53, 95% CI = 1.89–3.15), married (OR = 0.86, 95% CI = 0.24–1.48), nurses (OR = 0.87, 95% CI = 0.28–1.45) and those with a chronic disease (OR = 0.86, 95% CI = 0.11–1.62) were more fearful of COVID-19. Conclusions: It is important to decrease fear in the population of nurses who are at the frontlines of the pandemic. The provision of appropriate education and training activities for nurses and students to manage their stress levels is of high importance. Future studies should focus on levels of fear after the administration of several safe and effective vaccines worldwide.

Drug Interactions for Patients with Respiratory Diseases Receiving COVID-19 Emerged Treatments

Pandemic of coronavirus disease (COVID-19) is still pressing the healthcare systems worldwide. Thus far, the lack of available COVID-19-targeted treatments has led scientists to look through drug repositioning practices and exploitation of available scientific evidence for potential efficient drugs that may block biological pathways of SARS-CoV-2. Till today, several molecules have emerged as promising pharmacological agents, and more than a few medication protocols are applied during hospitalization. On the other hand, given the criticality of the disease, it is important for healthcare providers, especially those in COVID-19 clinics (i.e., nursing personnel and treating physicians), to recognize potential drug interactions that may lead to adverse drug reactions that may negatively impact the therapeutic outcome. In this review, focusing on patients with respiratory diseases (i.e., asthma or chronic obstructive pulmonary disease) that are treated also for COVID-19, we discuss possible drug interactions, their underlying pharmacological mechanisms, and possible clinical signs that healthcare providers in COVID-19 clinics may need to acknowledge as adverse drug reactions due to drug-drug interactions.

Validation of the Evidence-Based Practice Competence Questionnaire for Nursing Students: A Cross-Sectional Study in Greece

(1) Background: evidence-based nursing has been widely adopted by healthcare facilitators, and it is predicated on the connection between research evidence and clinical practice. The knowledge and implementation of evidence-based practice (EBP) depend on a variety of long-established barriers and attitudes. The purpose of this study was to translate and validate the Greek version of the evidence-based practice competence questionnaire (EBP-COQ) and test it on a sample of Greek undergraduate nursing students. (2) Methods: a cross-sectional analysis was conducted on data obtained between November 2018 and January 2019. A convenience sample of 320 Greek undergraduate nursing students participated in a survey to examine the psychometric properties of the tool. The reliability and validity of the tool was examined. Cronbach’s coefficient alpha was used to determine the scale’s internal consistency reliability. (3) Results: the EBP-COQ was translated and validated. The estimated Cronbach’s alpha was higher than 0.70 for all scales. Of the participants, 22.5% were men and 77.5% were women, while 31% of them were in their final year of nursing education. A total of 61% of the students stated that they had not participated in an EBP seminar in the past. High Spearman’s correlation coefficients were found for “Knowledge in EBP” with “Personal attitude towards EBP” (rs = 0.329, p < 0.001). (4) Conclusions: the Greek version of the EBP-COQ is a valid instrument that can be used in the Greek population. It provides information about attitude, knowledge and skills in the EBP approach.

Factors influencing nursing students' intention to accept COVID-19 vaccination: A pooled analysis of seven European countries

BACKGROUND

Experiencing the third wave of COVID-19 pandemic, high vaccination coverage by a safe and effective vaccine globally would be a great achievement. Acceptance of vaccination by nursing students is an important issue as they play a decisive role as future professionals in educating patients, counselling, and guiding them to the right clinical decision.

OBJECTIVES

To explore the intention of nursing students to get vaccinated for SARS-CoV-2 infection and the factors acting either as motivators or as barriers towards vaccination.

DESIGN

A multicenter cross-sectional design.

PARTICIPANTS

In total 2249 undergraduate nursing students participated.

METHODS

The study was conducted in 7 universities in participating countries (Greece, Albania, Cyprus, Spain, Italy, Czech Republic, and Kosovo) through a web survey. Data was collected during December 2020-January 2021 in all countries.

RESULTS

Forty three point 8% of students agreed to accept a safe and effective COVID-19 vaccine, while the acceptance was higher among Italian students. The factors for intention to get vaccinated were male gender (p = 0.008), no working experience in healthcare facilities during the pandemic (p = 0.001), vaccination for influenza in 2019 and 2020 (p < 0.001), trust in doctors (p < 0.001), governments and experts (p = 0.012), high level of knowledge (p < 0.001) and fear of COVID-19 (p < 0.001).

CONCLUSIONS

Understanding of factors that influence students' decision to accept COVID-19 vaccination could increase the acceptance rate contributing to a management of the pandemic.

Is the mental health of young students and their family members affected during the quarantine period? Evidence from the COVID-19 pandemic in Albania

WHAT IS KNOWN ON THE SUBJECT?: Mental health is deteriorated during the quarantine period. Mental health status is affected by the quarantine even after the end of it and for an extended period. WHAT THE PAPER ADDS TO EXISTING KNOWLEDGE?: Depression levels among nursing/midwifery students during the quarantine period are high. Depression levels among students' family members during the quarantine period are high. Those who are not satisfied with COVID-19 prevention measures and those who believe that COVID-19 and quarantine can cause problems on health, have elevated levels of depression. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: Provision of mental health services during the quarantine period should be a priority for the healthcare system. Offering mental health first aid training and support can improve the mental health status of students and their family members. ABSTRACT: Introduction The use of quarantine method has a significant impact on mental health status. Aim This study aimed to assess the levels of depression among bachelor and master university students (nurses/midwives) and their family members' during the quarantine period of COVID-19 pandemic. Method A cross-sectional study was conducted in Vlora University, Albania. Patient Health Questionnaire (PHQ-9) was used. Institutional e-mails of all active students were used for their recruitment. Results In total, 863 students and 249 family members participated in the study. The mean PHQ-9 score was 6.220 (SD = 5.803) and 6.280 (SD = 5.857) for students and family members, respectively. Being unsatisfied with COVID-19 prevention measures, beliefs that COVID-19 infection and quarantine process can cause problems on their health status were the key factors for students to be screened positive for mental problems in multiple regression analysis. For parents, the last two factors were found to contribute significantly. Discussion Our findings indicate that quarantine measures have a significant impact on the levels of depression among both university students and their family members. Broader population studies are necessary to safeguard these results. Implications for Practice Provision of mental health services during the quarantine period is of paramount significance. Mental health first aid training and support could benefit both students and their parents significantly. Additionally, follow-up services after the end of quarantine are recommended.

Core Evidence-Based Practice Competencies and Learning Outcomes for European Nurses: Consensus Statements

Background

Consensus on evidence‐based practice (EBP) competencies and associated learning outcomes for registered nurses has not yet been achieved in the European context.

Aims

To establish a set of core EBP competencies for nurses and the most important EBP learning outcomes encompassing attitudes, knowledge, and skills dimensions for implementation into nursing education in European countries.

Methods

A multi‐phase modified Delphi survey was conducted: Phase 1, a literature review; Phase 2, a two‐round consensus of experts; and Phase 3, a Delphi survey. Experts from six European countries participated.

Results

In Phase 1, 88 records were selected and 835 statements extracted, which were grouped according to the seven steps of EBP. After removing 157 duplicates, the remaining competencies (n = 678) were evaluated in Phase 2. Then, a two‐round expert consensus was reached, with 24 competencies and 120 learning outcomes identified and divided into affective, cognitive, and skills domains. In Phase 3, based on a Delphi survey expert consensus, all evaluated statements were included in a final set of competencies and learning outcomes. Only two learning outcomes were recommended for allocation to a different domain, and four were reformulated as suggested, with no further changes to the others.

Linking Evidence to Action

The set of EBP competencies and learning outcomes can guide nurse educators, managers, and EBP stakeholders in the development of content that incorporates EBP knowledge, skills, and attitudes into educational programs. Prioritizing the EBP competencies and learning outcomes that are most necessary and adapting them to every context will provide healthcare organizations with guidelines for enhancing the continuing education of nurses. These results could facilitate the development of effective tools for assessing nursing students’ and nurses’ perception of competencies required for EBP processes.

Nursing students, mental health status during COVID-19 quarantine: evidence from three European countries

BACKGROUND

The SARS-CoV2 pandemic obligated most of the European countries to implement strict measures and lockdowns to minimize the spread of the virus. Universities closed and on-line classes started. However, COVID-19 epidemic has significant impact on mental health of population.

AIM

To assess depression level of nursing students (undergraduate and master) in Greece, Spain and Albania during COVID-19 pandemic as well as to identify possible determinants of depression level.

METHODS

A multicenter cross-sectional study was conducted between April and May 2020. An on-line questionnaire was used to collect the data. The Patient Health Questionnaire-9 was used to evaluate the depression levels of nursing students.

RESULTS

Seven hundred and eighty-seven nursing students participated in the study out of which 83.9% were of female gender, 92.9% single and 94.7% lived with others. One third of the nursing student population experienced mild depression, with higher depression levels noted for Spanish students (59.1%) followed by Albanian (34.5%) and Greek (21.8%) students. Multivariate linear regression analysis identified that Spanish students experienced more depression than Greek and Albanian (p < 0.001). Also, decreased age was associated with increased depression.

CONCLUSION

The impact of lockdown and quarantine on nursing students mental health is clear. Provision of university based mental health interventions should be a priority.

Teaching evidence-based practice (EBP) in nursing curricula in six European countries-A descriptive study

BACKGROUND

Teaching evidence-based practice (EBP) in nursing education varies among nurse educators and universities. Lack of nurses' knowledge and skills are among the barriers commonly associated with the limited use of EBP in practice.

OBJECTIVES

To describe the presence, characteristics and content of courses of EBP in nursing bachelor's, master's, and PhD programs in six European countries.

DESIGN

A descriptive study design was employed.

SETTINGS

The study was implemented as part of the EBP e-Toolkit Project as a strategic partnership of six European higher education institutions from six countries in the framework of the Erasmus+ Programme.

PARTICIPANTS

Census sampling (N = 225) was used. A total of 162 (72%) faculties responded from the following countries: Spain (79), Italy (44), the Czech Republic (15), Poland (12), Greece (7), and Slovenia (5).

METHODS

Three structured instruments were developed by using the consensus development panel. The research was conducted from December 2018 to March 2019. For names of subjects, a manual narrative Template Analysis was used with open descriptive coding.

RESULTS

Subjects in "EBP in Nursing or Health Care" are included in 45 (29.2%) bachelor's programs, mostly worth 180 European Credit Transfer System (ECTS) credits, 30 (28%) master's, and 6 (40%) PhD programs. In bachelor's programs, an average of 134 h are spent teaching EBP steps, followed by 127 h in master's programs and 52 h in PhD programs. EBP subjects have different focuses: clear topics in EBP, development of research knowledge, awareness of the need for evidence-based clinical work, and understanding the needs of the profession.

CONCLUSIONS

Teaching EBP is not yet sufficiently integrated into nursing curricula. For more efficient integration, guidelines on the standardization of teaching approaches and content have to be developed in all three cycles of higher education. Further research is needed on the implementation of teaching at master's and PhD levels of nursing curricula.

Educational Interventions for Teaching Evidence-Based Practice to Undergraduate Nursing Students: A Scoping Review

Background: Evidence-based practice (EBP) is the appropriate approach to guide healthcare personnel in their clinical practice. Despite the importance of EBP, undergraduate nursing students are not very much engaged and have a lack of knowledge and skills. Aim: The aim of this study was to gather, assess and synthesize evidence on educational interventions promoting evidence-based practice competencies in traditional undergraduate nursing students. Methods: This is a scoping review on sixteen English and non-English databases. A data extraction form was established including authors, year of publication, country, types of participant, specific objectives, study design, educational intervention, comparison if existed, and outcomes of significance. Results: The search strategy retrieved 8901 records in total. After screening for duplicates and eligibility, 20 articles were included in the qualitative synthesis. Improvement in EBP domains such as knowledge, skills, attitudes/behaviours, EBP beliefs, use, practice, level of evidence, critical thinking and future use of EBP were mentioned and assessed in different studies. Conclusions: EBP training can improve nursing students’ capacity in healthcare provision. Teaching EBP competencies along undergraduate nursing curricula should be a high priority at nursing programmes. The use of innovative approaches seems to be more effective than traditional ways. Education of EBP increases its future use and critical thinking and EBP programs improve self-efficacy and the level of evidence utilization.

Nursing Personnel in the Era of Personalized Healthcare in Clinical Practice

Personalized, stratified, or precision medicine (PM) introduces a new era in healthcare that tries to identify and predict optimum treatment outcomes for a patient or a cohort. It also introduces new scientific terminologies regarding therapeutic approaches and the need of their adoption from healthcare providers. Till today, evidence-based practice (EBP) was focusing on population averages and their variances among cohorts for clinical values that are essential for optimizing healthcare outcome. It can be stated that EBP and PM are complementary approaches for a modern healthcare system. Healthcare providers through EBP often see the forest (population averages) but miss the trees (individual patients), whereas utilization of PM may not see the forest for the trees. Nursing personnel (NP) play an important role in modern healthcare since they are consulting, educating, and providing care to patients whose needs often needs to be individualized (personalized nursing care, PNC). Based on the clinical issues earlier addressed from clinical pharmacology, EBP, and now encompassed in PM, this review tries to describe the challenges that NP have to face in order to meet the requisites of the new era in healthcare. It presents the demands that should be met for upgrading the provided education and expertise of NP toward an updated role in a modern healthcare system.

MicroRNAs as biomarkers of harmful environmental and occupational exposures: a systematic review

Environmental exposure is a growing public health burden associated with several negative health effects. An estimated 4.2 million deaths occur each year from ambient air pollution alone. Biomarkers that reflect specific exposures have the potential to measure the real integrated internal dose from all routes of complex environmental exposure. MicroRNAs (miRNAs), small non-coding RNAs that regulate gene expression, have been studied as biomarkers in various diseases and have also shown potential as environmental exposure biomarkers. Here, we review the available human epidemiological and experimental evidence of miRNA expression changes in response to specific environmental exposures including airborne particulate matter. In doing so, we establish that miRNA exposure biomarker development remains in its infancy and future studies will need to carefully consider biological and analytical 'design rules' in order to facilitate clinical translation.

Association between ovarian cancer and advanced endometriosis

We retrospectively analyzed clinicopathological data in two different countries over the past years on the association between ovarian endometriosis and ovarian carcinoma. Medical and pathological reports were evaluated from 1,000 patients with endometriosis from two different geographical areas. The prevalence and women characteristics of cases were analyzed. Endometriosis-associated ovarian cancer was present in 20 (2%) cases, among the study subjects. The observed prevalence was 12 (60%) for endometrioid carcinoma, 4 (20%) for clear cell ovarian carcinoma, 2 (10%) for serous and 2 (10%) for mucinous adenocarcinoma. A higher proportion of endometrioid carcinoma cases were noted in comparison with other types (P<0.001). We found only 3/20 (15%) postmenopausal cases. In all cases, we reported advanced stage of endometriosis (stage III or IV). Left-sided endometrioid carcinoma were notably more common than right-sided ones (P<0.001). In the majority of cases, malignant transformation of endometriosis was observed in endometrioid carcinoma or clear cell carcinoma of the ovary. Further research is required to establish the relationship between endometriosis and ovarian cancer.

Approaches to teach evidence-based practice among health professionals: an overview of the existing evidence

Health care professionals' adoption of evidence-based practice (EBP) remains limited, although most health care professionals are familiar with EBP and believe in its value. This systematic review aimed to bring together the best methods used to teach EBP to health professionals. The authors conducted a systematic search for the period 2005-2015 (an update of the search took place in October 2016) using PubMed interface (Medline). MeSH terms as well as free-text keywords were used. Studies were analyzed and evaluated by title and abstract. Those studies which fulfilled the inclusion criteria were assessed by full text. References of articles were also taken into consideration for identifying relevant studies not found through algorithm search. Twenty articles were found to be relevant. The majority of the studies were conducted among nurses (n=7) and physicians (n=6), and only a few among professionals from mixed disciplines (n=5). Two studies were conducted among chiropractors (n=1) and faculty members from a naturopathic and classical Chinese medicine institution (n=1). Researchers used a variety of different approaches, which varied with respect to duration and organization. We divided interventions into two categories. Single interventions included either a workshop, or a journal club, or a conference, or a lecture, or online learning tools, whereas multiple interventions included a combination of these approaches. An increase in EBP competencies and attitudes was reported in nine studies. Teaching methods for optimizing EBP among health professionals could become a robust standardized procedure of the medical educational curricula and lifelong learning of health care professionals.

The Influence of Meteorological Factors and Atmospheric Pollutants on the Risk of Preterm Birth

Atmospheric pollutants and meteorological conditions are suspected to be causes of preterm birth. We aimed to characterize their possible association with the risk of preterm birth (defined as birth occurring before 37 completed gestational weeks). We pooled individual data from 13 birth cohorts in 11 European countries (71,493 births from the period 1994-2011, European Study of Cohorts for Air Pollution Effects (ESCAPE)). City-specific meteorological data from routine monitors were averaged over time windows spanning from 1 week to the whole pregnancy. Atmospheric pollution measurements (nitrogen oxides and particulate matter) were combined with data from permanent monitors and land-use data into seasonally adjusted land-use regression models. Preterm birth risks associated with air pollution and meteorological factors were estimated using adjusted discrete-time Cox models. The frequency of preterm birth was 5.0%. Preterm birth risk tended to increase with first-trimester average atmospheric pressure (odds ratio per 5-mbar increase = 1.06, 95% confidence interval: 1.01, 1.11), which could not be distinguished from altitude. There was also some evidence of an increase in preterm birth risk with first-trimester average temperature in the -5°C to 15°C range, with a plateau afterwards (spline coding, P = 0.08). No evidence of adverse association with atmospheric pollutants was observed. Our study lends support for an increase in preterm birth risk with atmospheric pressure.

Exposure to active and passive smoking among Greek pregnant women

Background

Active smoking and exposure to passive smoke are responsible for numerous adverse pregnancy outcomes for women and their infants. The aim of this study was to explore the perceptions, attitudes, patterns of personal tobacco use and exposure to environmental smoke among a sample of pregnant women in Greece.

Method

A cross sectional survey was undertaken of 300 women identified from the perinatal care records of the Maternity Departments of two hospitals in Athens between February 2013 and May 2013. Data on active and passive maternal smoking status in the first, second, and third trimesters of pregnancy, fetal and neonatal tobacco related complications, exposure to environmental tobacco smoke during pregnancy, quit attempts, behaviors towards avoiding passive smoking and beliefs towards smoking cessation during pregnancy were collected using self-administered questionnaires on the 3rd postnatal day. Women also completed the Edinburgh Postnatal Depression Scale (EPDS).

Results

Of 300 women recruited to the study 48 % reported tobacco use during the first trimester of pregnancy. Amongst participants who were tobacco users, 83.3 % reported making an attempt to quit but less than half (45.1 %) were successful. Among women who continued to smoke during pregnancy the majority (55.8 %) reported that they felt unable to quit, and 9.3 % reported that they considered smoking cessation was not an important health issue for them. Participants who continued to smoke during pregnancy were more likely to report fetal (χ2 = 11.41; df = 5; p < 0.05) and newborn complications (χ2 = 6.41; df = 2; p < 0.05), including preterm birth and low birth weight. Participants who reported that their partners were smokers were more likely to smoke throughout their pregnancy (χ2 = 14.62; df = 1; p < 0.001). High rates of second-hand smoke exposure were reported among both smoking and non-smoking women. Pregnant smokers had significantly higher levels of postnatal depressive and anxiety symptomatology, as measured using the EPDS, than non-smokers.

Conclusion

Our data supports the importance of ensuring that pregnant women, their partners and close relatives are educated on the health risks of active and passive smoking and how these could have an adverse effect to their fetus and infants, as well as the pregnant women themselves.

The independent role of prenatal and postnatal exposure to active and passive smoking on the development of early wheeze in children

Maternal smoking during pregnancy increases childhood asthma risk, but health effects in children of nonsmoking mothers passively exposed to tobacco smoke during pregnancy are unclear. We examined the association of maternal passive smoking during pregnancy and wheeze in children aged ≤2 years.Individual data of 27 993 mother-child pairs from 15 European birth cohorts were combined in pooled analyses taking into consideration potential confounders.Children with maternal exposure to passive smoking during pregnancy and no other smoking exposure were more likely to develop wheeze up to the age of 2 years (OR 1.11, 95% CI 1.03-1.20) compared with unexposed children. Risk of wheeze was further increased by children's postnatal passive smoke exposure in addition to their mothers' passive exposure during pregnancy (OR 1.29, 95% CI 1.19-1.40) and highest in children with both sources of passive exposure and mothers who smoked actively during pregnancy (OR 1.73, 95% CI 1.59-1.88). Risk of wheeze associated with tobacco smoke exposure was higher in children with an allergic versus nonallergic family history.Maternal passive smoking exposure during pregnancy is an independent risk factor for wheeze in children up to the age of 2 years. Pregnant females should avoid active and passive exposure to tobacco smoke for the benefit of their children's health.

Educational strategies for teaching evidence-based practice to undergraduate health students: systematic review

PURPOSE

The aim of this systematic review was to find best teaching strategies for teaching evidence-based practice (EBP) to undergraduate health students that have been adopted over the last years in healthcare institutions worldwide.

METHODS

The authors carried out a systematic, comprehensive bibliographic search using Medline database for the years 2005 to March 2015 (updated in March 2016). Search terms used were chosen from the USNLM Institutes of Health list of MeSH (Medical Subject Headings) and free text key terms were used as well. Selected articles were measured based on the inclusion criteria of this study and initially compared in terms of titles or abstracts. Finally, articles relevant to the subject of this review were retrieved in full text. Critical appraisal was done to determine the effects of strategy of teaching evidence-based medicine (EBM).

RESULTS

Twenty articles were included in the review. The majority of the studies sampled medical students (n=13) and only few conducted among nursing (n=2), pharmacy (n=2), physiotherapy/therapy (n=1), dentistry (n=1), or mixed disciplines (n=1) students. Studies evaluated a variety of educational interventions of varying duration, frequency and format (lectures, tutorials, workshops, conferences, journal clubs, and online sessions), or combination of these to teach EBP. We categorized interventions into single interventions covering a workshop, conference, lecture, journal club, or e-learning and multifaceted interventions where a combination of strategies had been assessed. Seven studies reported an overall increase to all EBP domains indicating a higher EBP competence and two studies focused on the searching databases skill.

CONCLUSION

Followings were deduced from above analysis: multifaceted approach may be best suited when teaching EBM to health students; the use of technology to promote EBP through mobile devices, simulation, and the web is on the rise; and the duration of the interventions varying form some hours to even months was not related to the students' EBP competence.

Prenatal Second-Hand Smoke Exposure Measured with Urine Cotinine May Reduce Gross Motor Development at 18 Months of Age

OBJECTIVE

To evaluate the association of second-hand smoke exposure of pregnant mothers using urine cotinine with the neurodevelopment of their children at 18 months of age in the mother-child cohort in Crete (Rhea Study).

STUDY DESIGN

Selected participants were Greek mothers with singleton pregnancies, had never smoked, and had available urine cotinine measurements in pregnancy, and their children for whom a neurodevelopmental assessment was completed. We performed face-to-face interviews twice during pregnancy and postnatally, and assessed children's neurodevelopment at 18 months of age using the Bayley Scales of Infant and Toddler Development, Third Edition. We used linear regression and generalized additive models.

RESULTS

Of 599 mothers, 175 (29%) met the inclusion criteria. Maternal urine cotinine levels were low (mean: 10.3 ng/mL, SD: 11.7 ng/mL). Reported passive smoking from different sources was strongly associated with urine cotinine levels. A negative association was observed between cotinine levels in pregnancy and child's gross motor function (beta = -3.22 per 10 ng/mL, 95% CI -5.09 to -1.34) after adjusting for factors potentially associated with neurodevelopment; results were similar in both sexes. A negative association was also observed for cognitive and receptive communication scales but the effect was small and not statistically significant.

CONCLUSIONS

Maternal exposure during pregnancy to second-hand smoke measured through urine cotinine was associated with a decrease in gross motor function among 18-month-old children, even at low levels of exposure.

Voluntary Organizations and Community Groups as New Partners in Diabetes Self-management and Education: A Critical Interpretative Synthesis

PURPOSE

The purpose of this study is to critically review the literature on the role and work of voluntary organizations and community groups and volunteers in diabetes self-management programs. It seeks to explain how these organizations are located and could be integrated further within a broader system of support.

METHODS

A critical interpretative synthesis of the literature was undertaken as part of the conceptual development of a European research project. Evidence (2000-November 2014) was searched in databases, with the use of key terms, and limited to the languages of the participating countries. This was supplemented by an additional hand search and snowballing technique. A total of 21 articles were included in the review.

RESULTS

Evidence regarding the involvement of voluntary organizations in diabetes self-management programs mainly related to: the nature and remit of their work, responsibilities, and attributes; key strategies of programs accounting for success; motivations/barriers for engaging in volunteering participation; relationships between volunteers and users; and connections/tensions with formal services.

CONCLUSIONS

This review has uncovered a range of facets of voluntary organizations and community groups relevant for supporting diabetes self-management such as the context within which they act and the nature of relationships developed with community and health services. The principles of "assistance, support, sharing, and link" seem essential for this voluntary initiative in self-management to establish effective reciprocal collaboration with health professionals.

Exposure to indoor pollutants and Wheeze and asthma development during early childhood

Background: This review aimed to summarize existing epidemiological evidence of the association between quantitative estimates of indoor air pollution with early childhood respiratory disease. Methods: We carried out a systematic literature search of peer-reviewed epidemiological studies undertaken in “westernized” countries that have assessed exposure to indoor pollutants and asthma and wheeze from infancy up to the age of 5. Results: The search, between January 2004 and February 2014 yielded 1840 studies for consideration. Following application of eligibility criteria to titles and abstracts 22 independent studies were deemed relevant for further review. Two additional studies were next identified through examination of the references’ lists of these studies. Of these 24 selected studies, 16 adopted a prospective cohort design and 8 were case-control studies. Fourteen studies assessed exposure to bio-aerosols, 8 studies assessed exposure to specific air chemicals and two studies assessed exposure to bio-aerosols and air chemicals. Furthermore, 11 studies examined the association of exposure with asthma and 16 with wheeze. Findings indicate that existing studies have reported contradictory effects of indoor pollutants levels and occurrence of asthma/wheeze. Conclusion: Additional research to establish causality and evaluate interventions to prevent disease onset is needed.

Translation and validation of the Greek "Minnesota Living with Heart Failure" questionnaire

INTRODUCTION

The Minnesota Living with Heart Failure Questionnaire (MLHFQ) is an important measurement instrument for assessing the health-related quality of life (HRQOL) among heart failure patients. The purpose of this study was to translate and validate the MLHFQ in the Greek language.

METHODS

Three hundred forty-four consecutive adult patients from three General Hospitals, two in Athens and one in another part of the country, who were diagnosed with chronic heart failure, and 347 healthy controls were enrolled in the study from March 2009 to March 2010. The questionnaire instrument was translated from English, back-translated, and reviewed by a committee of experts. The psychometric measurements that were performed included reliability coefficients and Explanatory Factor Analysis (EFA), using a Varimax rotation and Principal Components Method. In a further step, confirmatory analysis (CFA)--known as structural equation modeling--of the principal components was conducted.

RESULTS

The internal consistency of the Greek MLHFQ version was found to be 0.97, using Cronbach's alpha coefficient. An exploratory factor analysis identified two domains that accounted for 72.5% of the variance of MLHFQ items; the area under the ROC curve was calculated at 0.942 and the logistic estimate for the threshold score of 24.50 provided the model with 95.1% sensitivity and 99.8% specificity. Additionally, the CFA demonstrated that the two-factor model offered a very good fit to our data.

CONCLUSIONS

Our data indicate that the Greek MLHFQ is a reliable and valid tool for assessing HRQOL among patients with heart failure. Health professionals can use it in their clinical practice to improve their evaluation of these patients.

Prenatal exposure to PCB-153, p,p'-DDE and birth outcomes in 9000 mother-child pairs: exposure-response relationship and effect modifiers

Low-level exposure to polychlorinated biphenyl-153 (PCB-153) and dichlorodiphenyldichloroethylene (p-p'-DDE) can impair fetal growth; however, the exposure-response relationship and effect modifiers of such association are not well established. This study is an extension of an earlier European meta-analysis. Our aim was to explore exposure-response relationship between PCB-153 and p-p'-DDE and birth outcomes; to evaluate whether any no exposure-effect level and susceptible subgroups exist; and to assess the role of maternal gestational weight gain (GWG). We used a pooled dataset of 9377 mother-child pairs enrolled in 14 study populations from 11 European birth cohorts. General additive models were used to evaluate the shape of the relationships between organochlorine compounds and birth outcomes. We observed an inverse linear exposure-response relationship between prenatal exposure to PCB-153 and birth weight [decline of 194g (95% CI -314, -74) per 1μg/L increase in PCB-153]. We showed effects on birth weight over the entire exposure range, including at low levels. This reduction seems to be stronger among children of mothers who were non-Caucasian or had smoked during pregnancy. The most susceptible subgroup was girls whose mothers smoked during pregnancy. After adjusting for absolute GWG or estimated fat mass, a reduction in birth weight was still observed. This study suggests that the association between low-level exposure to PCB-153 and birth weight exists and follows an inverse linear exposure-response relationship with effects even at low levels, and that maternal smoking and ethnicity modify this association.