Anna Zimny-Zajac

Dr. Anna Zimny-Zajac

orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

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

Representative Publications

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ASAgnieszka Aleksandra Szychowska
Agnieszka Aleksandra Szychowska
AZAnna Zimny-Zajac
Anna Zimny-Zajac
EDElzbieta Dziankowska-Zaborszczyk
Elzbieta Dziankowska-Zaborszczyk
TGTomasz Grodzicki
Tomasz Grodzicki
WWojciech Drygas
Wojciech Drygas
TZTomasz Zdrojewski
Tomasz Zdrojewski
National Test for Poles’ Health is an online study conducted on a large group of Polish Internet users. For the purpose of this study, 64,732 subjects (48.8% female) over 65 years old were included. Subjects provided answers on the level of physical activity (PA) they engage in, prevalence of non-communicable diseases (obesity, hypertension, diabetes, heart diseases, chronic obstructive pulmonary disease (COPD), depression, cancer) and subjective physical and psychological health. Additionally, their Body Mass Index (BMI) and prevalence of multimorbidity was assessed. We found that older people who engage in at least 2 h of physical activity/week had significantly lower prevalence of hypertension, obesity and heart diseases than those who engaged in 1–1.5 h/week or less than 1 h/week. Multimorbidity was present in 33.2% of subjects from the most active group and 52.6% of the least active ones. Subjective physical and psychological health was rated as “very good” by 26.6% and 41.2%, respectively, by subjects from the most active group. Only 9.1% of the least active subjects rated their physical health as “very good” and only 27.4% rated their psychological health as such. Regular physical activity may be a helpful tool in combating the reduced well-being of older people affected by the isolation caused by the COVID-19 pandemic. Unfortunately, over 65% of respondents claimed to engage in less than 1 h of PA a week or less.

19 March 2023 in Vaccines
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Journal Article
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JGJustyna Gołębiowska
Justyna Gołębiowska
AZAnna Zimny-Zajac
Anna Zimny-Zajac
MDMateusz Drozdz
Mateusz Drozdz
SMSebastian Makuch
Sebastian Makuch
KDKrzysztof Dudek
Krzysztof Dudek
SASiddarth Agrawal
Siddarth Agrawal
Due to the rapid development of COVID-19 vaccines, the world has faced a huge challenge with their general acceptance, including Poland. For this reason, we attempted to determine the sociodemographic factors influencing the decision of positive or negative attitudes toward COVID-19 vaccination. The analysis included 200,000 Polish participants—80,831 women (40.4%) and 119,169 men (59.6%). The results revealed that the most common reasons for vaccine refusal and hesitancy were the fear of post-vaccination complications and their safety (11,913/31,338, 38.0%; 9966/31,338, 31.8%). Negative attitudes were observed more often among male respondents with primary or secondary education (OR = 2.01, CI95% [1.86–2.17] and OR = 1.52, CI95% [1.41–1.63], respectively). On the other hand, older age ≥ 65 (OR = 3.69; 95%CI [3.44–3.96]), higher education level (OR = 2.14; 95%CI [2.07–2.22]), living in big cities with a range of 200,000–499,999 inhabitants and more than 500,000 inhabitants (OR = 1.57, CI95% [1.50–1.64] and OR = 1.90, CI95% [1.83–1.98], respectively), good physical conditions (OR = 2.05; CI95% [1.82–2.31]), and at last normal mental health conditions (OR = 1.67, CI95% [1.51–1.85]) were significantly associated with COVID-19 vaccine acceptance. Our study indicates which population group should be further supplied with data and information by health education, the government, and healthcare professionals to alleviate the negative attitude toward COVID-19 vaccines.

12 September 2023 in Nutrients
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Journal Article
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JGJustyna Gołębiowska
Justyna Gołębiowska
AZAnna Zimny-Zajac
Anna Zimny-Zajac
SMSebastian Makuch
Sebastian Makuch
MDMateusz Drozdz
Mateusz Drozdz
KDKrzysztof Dudek
Krzysztof Dudek
SASiddarth Agrawal
Siddarth Agrawal
Proper nutrition may help in preventing deaths or at least alleviating the symptoms of many chronic diseases. While the COVID-19 disease was still taking its toll, the world had to adjust to new life conditions, which could change nutritional habits. In this observational, cross-sectional study, we aimed to identify the potential correlations between sociodemographic factors and diet and the presence of common chronic diseases among Polish inhabitants. Furthermore, we tried to determine whether the COVID-19 pandemic led to changes in nutritional habits. Therefore, based on the online study (the National Test for Poles’ Health (NTPH), we collected data from 376,102 and 200,000 respondents in two different time frames (before the COVID-19 pandemic: 2019–2020 and during the COVID-19 pandemic: 2021–2022, respectively). Despite the rapid global rise of the COVID-19 pandemic, among our study group, hypertension was still the most commonly occurring disease in both time frames (32.33% in 2019–2020 and 34.95% in 2021–2022, p < 0.001). Furthermore, more chronic diseases were reported during the COVID-19 pandemic than in 2019–2020. Regarding sociodemographic factors, male respondents were more likely to develop hypertension and diabetes (OR = 1.35 CI 95% (1.28–1.43), p < 0.001; and OR = 1.20 CI 95% (1.11–1.30), p < 0.001). Vegetarian diet decreases the likelihood of hypertension, neurological disease, and diabetes (OR = 0.69, CI 95% (0.60–0.81), p < 0.001; OR = 0.72, CI 95% (0.59–0.88), p = 0.001; and OR = 0.73, CI 95% (0.55–0.96), p = 0.026). In line with this, consuming meat meals increases the risk of hypertension (OR = 1.09, CI 95% (1.02–1.17), p = 0.009). Interestingly, a reduced-sodium diet has an association with decreased morbidity of COVID-19 disease (OR = 0.72, CI 95% (0.63–0.82), p < 0.001). This result brings new light to more research to be done to allow efficient prevention of this disease. In conclusion, our study shows the beneficial role of a balanced diet in reducing the incidence rate of common chronic diseases. Our findings may be educational for those who would like to change their nutritional habits and/or for public health professionals to suggest the implementation of proper diets to their patients.

11 September 2025 in Nutrients
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Journal Article
Open access
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Grażyna ZweiflerGrażyna Zweifler
Grażyna Zweifler
AZAnna Zimny-Zajac
Anna Zimny-Zajac
BMBabicki Mateusz
Babicki Mateusz
KKKarolina Kłoda
Karolina Kłoda
GMGrzegorz Mazur
Grzegorz Mazur
SASiddarth Agrawal
Siddarth Agrawal
Background: Dietary habits are key determinants of physical and mental health, yet large-scale, contemporary data on these behaviors and their health correlates are crucial for effective public health policy. This study leverages a uniquely large dataset to quantify the eating behaviors of Polish adults and examines how these behaviors relate to socio-demographic characteristics, health status, and subjective well-being. Methods: We analyzed data from 1,196,102 adult respondents who participated in the National Poles’ Health Test, a recurring online survey, between 2019 and 2024. The study used self-reported data on dietary habits, socio-demographic variables, chronic conditions, and self-assessed physical and mental health. Descriptive statistics and comparative analyses, such as the chi-square test, Student’s t-test, or ANOVA, were used. Results: Our findings reveal stark socio-demographic disparities in nutrition. Younger respondents and lower educational attainment were strongly correlated with more frequent consumption of fast food and sugar-sweetened beverages. Crucially, these unhealthy eating patterns were significantly associated with poorer self-rated physical and, notably, mental health (among people who consumed fast food every day, as many as 16.6% rated their mental health as bad, and 6.7% as very bad). In contrast, higher vegetable and fruit consumption correlated with markedly better health outcomes and greater subjective well-being. Conclusions: This large-scale study provides evidence of the profound link between diet and both physical and mental well-being in Poland. The results underscore the urgent need for targeted public health strategies aimed at improving dietary behaviors, particularly among younger and less-educated populations. The strong associations between diet, health status, and well-being highlight the importance of integrating nutritional education into both general healthcare and mental health services.

Verified
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AKAnna Kubrak
Anna Kubrak
AZAnna Zimny-Zajac
Anna Zimny-Zajac
SMSebastian Makuch
Sebastian Makuch
BJBeata Jankowska-Polanska
Beata Jankowska-Polanska
WTWojciech Tański
Wojciech Tański
SASiddarth Agrawal
Siddarth Agrawal
Background/Objectives: Cutaneous manifestations can signal underlying systemic inflammation, potentially exacerbated by chronic stress and diminished well-being. While links between psychosocial factors and skin health are recognized, comprehensive data across diverse populations remain limited. This study aimed to quantify associations between self-reported stress management capabilities, sociodemographic factors (gender, age, education, urbanization, professional status), lifestyle factors indicative of well-being, and the prevalence of six common dermatological manifestations (pruritus, burning sensations, redness, rash, desquamation, sunburn) within a large Polish cohort. Methods: This cross-sectional study analyzed data from 27,000 adult participants (22,043 women, 4887 men) collected during the National Healthy Skin Test (2023) via an online questionnaire. Participants reported the frequency of dermatological symptoms, stress management practices related to skin health, and relevant lifestyle factors (indicators of well-being). Logistic regression analyses identified significant predictors for each skin manifestation. Results: Effective stress coping ability was significantly associated with a lower prevalence of all six investigated dermatological manifestations (p < 0.001 for all). Significant gender differences emerged: women reported more frequent redness and burning sensations (p < 0.001), while men reported more frequent rash, sunburn, and desquamation (p < 0.001). Younger age (18–24 years) was associated with increased rash, desquamation, and redness compared to older adults (>65 years), who reported fewer burning sensations and less pruritus. Higher education and residence in large urban centers (≥500,000 inhabitants) were associated with increased reports of specific symptoms like sunburn and redness. Conclusions: This large-scale study demonstrates a significant association between psychosocial factors, particularly self-reported stress management, and the prevalence of six common, self-reported dermatological manifestations across various sociodemographic groups in Poland. The findings underscore the potential importance of considering a biopsychosocial approach in relation to these common skin symptoms. Further research is warranted, but these results suggest that for such common, self-reported skin issues, integrating stress reduction strategies and considering sociodemographic contexts and well-being may be valuable considerations for potentially enhancing personalized patient care and warrant further clinical investigation.

28 November 2025 in Nutrients
Verified
Journal Article
Open access
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ASAdrianna Szalonka
Adrianna Szalonka
AZAnna Zimny-Zajac
Anna Zimny-Zajac
SASiddarth Agrawal
Siddarth Agrawal
GMGrzegorz Mazur
Grzegorz Mazur
ABAleksandra Butrym
Aleksandra Butrym
Background: We examined the prevalence and correlates of energy drink (ED) consumption in Polish adults using an archival, nationally sourced dataset. Methods: Cross-sectional analysis of 120,000 adults from the archival 2024 National Health Test of Poles (computer-assisted web interview). ED consumption was assessed by frequency and dichotomized for regression (ever vs. never). Multivariable logistic regression estimated adjusted odds ratios (aOR) with 95% confidence intervals; an age cut-off was derived using ROC/Youden. Owing to the cross-sectional design, all estimates are interpreted as associations rather than causal effects. Results: In this national sample, 16.9% of adults reported ever consuming energy drinks, while regular (weekly or more frequent) consumption was rare (2.8%). After multivariable adjustment, the strongest independent correlates of ever consuming an energy drink were an age ≤53 years (aOR 3.80, 95% CI 3.61–4.01), male sex (aOR 3.17, 95% CI 3.03–3.32), frequent fast-food consumption (aOR 2.63, 95% CI 2.51–2.76), and being a current smoker (aOR 2.49, 95% CI 2.23–2.77). In contrast to the initial hypothesis, consumption was not found to be independently associated with education level. A strong, dose-dependent relationship was observed between consumption frequency and an increased prevalence of sleep disturbances, depression, and somatic complaints like headaches and chest pain. Conclusions: Energy drink consumption in Poland is concentrated within a high-risk demographic of young to middle-aged men and is deeply embedded within a cluster of adverse health behaviors. These findings underscore the need for comprehensive public health interventions that address the entire lifestyle pattern, rather than focusing solely on energy drink use.