Joanna Didkowska

Joanna Didkowska
Centrum Onkologii-Instytut im. Marii Skłodowskiej-Curie | COI · Department of Epidemiology & Cancer Prevention

Professor

About

88
Publications
32,227
Reads
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8,098
Citations
Additional affiliations
December 2015 - present
Centrum Onkologii-Instytut im. Marii Skłodowskiej-Curie
Position
  • Head of Department
June 2010 - present
Maria Sklodowska Curie Memorial Cancer Centre
Position
  • Head of Department

Publications

Publications (88)
Article
Full-text available
The purpose of this paper is to offer the most important epidemiological indicators of malignant neoplasms in Poland for the year 2019. In 2019, the Polish National Cancer Registry received information on almost 171.2 thousand new cancer cases and 100.3 thousand cancer deaths. The most common male cancers were prostate (20.6%), lung (16.1%), colon...
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The aim of this study was to estimate the survival of Polish Burkitt lymphoma/leukemia (BL) patients diagnosed between 1999 and 2017, considering multiple covariates and periods, to reflect changes in BL treatment. We identified all BL patients registered in the Polish National Cancer Registry in 1999–2017. Observed survival (OS) was evaluated depl...
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Background The purpose of this study was to estimate the high incidence cancers survival in Poland between 2000 and 2018, with the following aim to monitor the national polish cancer control program 2020–2030 effectiveness. We calculated survival in cancer of lung, breast, prostate, colon, rectum, ovarian, cervical cancers, and skin melanoma. Meth...
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Background & Aims The proportion of colonoscopies with at least one adenoma (adenoma detection rate, ADR) is inversely associated with colorectal cancer (CRC) risk and death. The aim of this study was to examine such associations exist for colonoscopy quality measures other than the ADR. Methods We used data from the Polish Colorectal Cancer Scree...
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Since the outbreak of the COVID-19 pandemic, tobacco research has delivered new evidence on the harmfulness of smoking in the context of SARS-CoV-2 infection and the course of the COVID-19 disease. More and more research proves that smoking is an important risk factor contributing to increased risk of mortality among COVID-19 patients. The aim of t...
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Background: A significant proportion of upper gastrointestinal cancers (UGICs) remain undetected during esophagogastroduodenoscopy (EGD). We investigated the characteristics and risk factors of UGICs missed during endoscopy. Methods: In this nationwide registry-based study, we analyzed two large Polish datasets (National Health Fund and National...
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Available data suggest that up to 50% of cancer patients, who were smoking before diagnosis, continue to smoke during treatment, unaware of the damage caused due to continued tobacco use and the undervalued benefits of quitting smoking after a cancer diagnosis. Structured initiatives aimed at helping cancer patients give up smoking was undertaken a...
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Risk factors of cervical cancer (CC) development are well investigated, however, those influencing the risk of a potential false negative cytology preceding diagnosis of an invasive CC are not. We have aimed to explore these factors according to the data from Organised Cervical Cancer Screening Programme (OCCSP) in Poland. A total of 2.36 million o...
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Introduction. So far, cancer burden has mainly been connected with the age structure of a given population and changes in risk factor exposure combined with lifestyle. Nowadays, available data indicates that the SARS-CoV-2 virus may be a new strong agent impacting the number of cancer deaths in the future. Material and methods. In our study we anal...
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We have aimed to study reasons for reporting false-negative cytology results preceding diagnosis of interval cervical cancers (CC) in Poland. Data on all Pap smears collected in the organised screening in 2010-2015 were retrieved from the electronic database and linked with Polish National Cancer Registry (PNCR) data. False-negative results were d...
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Available epidemiological reports on follicular lymphoma (FL) often highlight a significant discrepancy between its high and low incidence rates in Western and Eastern Europe, respectively. The reasons behind that difference are not fully understood, but underreporting is typically presumed as one of the main factors. This study aimed to assess FL...
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Background: Current guidelines recommend a 10-year interval between screening colonoscopies, but evidence is limited. Objective: To assess the long-term risk for colorectal cancer (CRC) and death from CRC after a high- and low-quality single negative screening colonoscopy. Design: Observational study. Setting: Polish Colonoscopy Screening Pr...
Article
Background Some studies, mainly from high-income countries (HICs), report that women receive less care (investigations and treatments) for cardiovascular disease than do men and might have a higher risk of death. However, very few studies systematically report risk factors, use of primary or secondary prevention medications, incidence of cardiovasc...
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In Poland, cervical cancer incidence and mortality still remain considerably higher than in Western European countries or North America. Recent data indicate decreasing trends in women younger than 60 years and stable trends in older women. In this article, we identified obstacles in primary and secondary prevention of cervical cancer in Poland. We...
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Background & aims: Recommendation of surveillance colonoscopy should be based on risk of colorectal cancer and death after adenoma removal. We aimed to develop risk classification system based on colorectal cancer incidence and mortality following adenoma removal. Methods: We performed a multicenter population-based cohort study of 236,089 indiv...
Article
Introduction The aim of this study is to assess the changes in lung cancer mortality in Poland, being one of the highest in Europe, in relation to changes in smoking prevalence by the level of education. Methods Data come from the Central Statistical Office. Data on education are collected during the census surveys and covers years 1994-2012. The...
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Introduction Aim: To evaluate the research capacity and challenges in Poland. Material and Methods Analysis of tobacco control studies conducted in Poland in the years 1923-2017 includes: 1/ studies of tobacco market, 2/ descriptive epidemiological studies on smoking-attributable incidence and mortality, 3/ analytical epidemiological studies on th...
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Introduction. Survival rates are a tool that allows evaluation of healthcare quality and cancer treatment efficiency. The main aim of this article is to present tendencies in curability of Polish patients diagnosed between 1999-2010 and followed up until the end of 2015. Materials and methods. Survival analysis was performed using data from the Pol...
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In 2015, the second cycle of the CONCORD programme established global surveillance of cancer survival as a metric of the effectiveness of health systems and to inform global policy on cancer control. CONCORD-3 updates the worldwide surveillance of cancer survival to 2014. Methods CONCORD-3 includes individual records for 37·5 million patients diagn...
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Introduction: Lung cancer is the most common cancer in Poland and worldwide, and the leading cause of cancer-related deaths. Compared to the present day, the annual number of new cases of lung cancer will have increased by approximately 50%, by 2030. The overall ratio of mortality to incidence totals 0.87 and is among the highest. The five-year su...
Article
Background: In 2015, the second cycle of the CONCORD programme established global surveillance of cancer survival as a metric of the effectiveness of health systems and to inform global policy on cancer control. CONCORD-3 updates the worldwide surveillance of cancer survival to 2014. Methods: CONCORD-3 includes individual records for 37·5 millio...
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Introduction. Human papillomavirus (HPV) is responsible for almost all cervical cancers, for an important fraction of other anogenital cancers (anus, vulva, vagina and penis), but also for some head and neck cancer cases. Material and method. Data on cancer incidence for Poland in 2015 were taken from the database of Polish National Cancer Registry...
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Introduction. Since the 20th century tobacco smoking has had an enormous impact on morbidity and mortality in the adult population, and it remains the greatest single preventable health risk factor worldwide. Cancer is the second leading cause of death in Poland, with lung cancer as the primary cause of cancer-related death in Polish men and women....
Article
Aside from existing opportunistic screening, an organised screening programme (OSP) for cervical cancer (CC) was implemented in 2006/2007 in Poland. We applied joinpoint regression and age-period-cohort model to look for the impact of the OSP on CC incidence/mortality trends. Decline of age-standardised incidence rates (ASIRs) in the screening-age...
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Background Cancer is a major cause of death in children worldwide, and the recorded incidence tends to increase with time. Internationally comparable data on childhood cancer incidence in the past two decades are scarce. This study aimed to provide internationally comparable local data on the incidence of childhood cancer to promote research of cau...
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Background: Global inequalities in access to health care are reflected in differences in cancer survival. The CONCORD programme was designed to assess worldwide differences and trends in population-based cancer survival. In this population-based study, we aimed to estimate survival inequalities globally for several subtypes of childhood leukaemia....
Article
Background & aims: Quality of endoscopists' performance of colonoscopy is measured by adenoma detection rate (ADR). Although ADR is inversely associated with interval colorectal cancer and colorectal cancer death, the effects of increasing ADR have not been demonstrated. We investigated whether increasing ADRs from individual endoscopists associat...
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Breast cancer is the most common global malignancy found in women and likewise so in Poland; newly diagnosed cases being respectively 1.7 million and 17 thousand annually. For the last 30 years, population screening has been adopted in the developed world. In Poland, breast screening attendance is however around 45%, what is still lower than in hig...
Article
Przewlekła białaczka limfocytowa (CLL) jest nowotworem, który sprawia pewne trudności w opisie epidemiologicznym ze względu na statystyczne ujęcie nowotworów krwi w X Rewizji Międzynarodowej Klasyfikacji Chorób i Problemów Zdrowotnych. W Polsce w 2013 roku CLL stanowiła 1,3% wszystkich zachorowań na nowotwory w populacji mężczyzn i 1% u kobiet (odp...
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Barrett's Oesophagus (BO) is a complication of chronic gastro-oesophageal reflux disease (GORD) and is a major risk factor for oesophageal adenocarcinoma. Current guidelines are based on data showing a 0.5% annual malignancy progression rate. The Polish Barrett's Oesophagus Registry (POBOR) was established to characterize Polish patients with BO an...
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Over the last century, lung cancer from the rarest of diseases became the biggest cancer killer of men worldwide and in some parts of the world also of women (North America, East Asia, Northern Europe, Australia and New Zealand). In 2012 over 1.6 million of people died due to lung cancer. The cause-effect relationship between tobacco smoking and lu...
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Over the last century, lung cancer from the rarest of diseases became the biggest cancer killer of men worldwide and in some parts of the world also of women (North America, East Asia, Northern Europe, Australia and New Zealand). In 2012 over 1.6 million of people died due to lung cancer. The cause-effect relationship between tobacco smoking and lu...
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This paper presents the epidemiological picture of cancer in Poland its changes over time and a comparison with other countries of the European Union (EU). The mortality time trends for the main cancer sites in Poland are similar to those observed in other EU countries. However, the epidemiological transformation in cancer mortality in Poland is de...
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Worldwide data for cancer survival are scarce. We aimed to initiate worldwide surveillance of cancer survival by central analysis of population-based registry data, as a metric of the effectiveness of health systems, and to inform global policy on cancer control. Individual tumour records were submitted by 279 population-based cancer registries in...
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Wstep. Wyniki leczenia chorych na raka piersi zalezą w duzym stopniu od sprawnego przeprowadzenia procesu diagnostyczno-terapeutycznego. Szczegolnie istotny jest czas uplywający od początku choroby do rozpoczecia leczenia. Opoźnienie w podjeciu leczenia moze wynikac z przyczyn lezących po stronie pacjenta, lekarza lub systemu opieki zdrowotnej. Cel...
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The aging population and the increasing incidence of hematological malignancies is a challenge for the health care system in Poland. New medical technologies offer opportunities for patients above 65 years of age. Their use, however, requires careful research and confirm their usefulness in the context of current therapeutic guidelines. The require...
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Wstep. Czas uplywający od początku choroby do rozpoczecia terapii chorych na raka piersi ma wplyw na koncowyefekt leczenia. Opoźnienie w podjeciu leczenia moze miec przyczyne lezącą po stronie pacjenta, lekarza lub systemuopieki zdrowotnej. Czas od zauwazenia objawow sugerujących raka piersi do zgloszenia sie do lekarza jest określonyjako opoźnieni...
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Introduction. Cancer is an increasing health problem in Poland and the number of cases has been growing steadily during the last three decades. Cancer has now become the second most common cause of death (24% of deaths in 2010). In this report we present the latest estimates of morbidity and mortality from cancer in Poland in 2012 and also a wide r...
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Breast cancers are the most common cancers in the developed countries. In Poland, they are responsible for about one fourth of cancer cases (in 2010 over 15700 cases). It is estimated that within the next 15 years the number of new cases will exceed 21000 and the risk of this cancer, although still lower, will be comparable to observed in Europe (r...
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Aim of paper: Epidemiological analysis of malignant tumors developing within the female genital system in Polish population. Material and method: Data concerning incidence were obtained in the National Tumor Registry; data on mortality were obtained at the Head Statistical Bureau. Data on mortality in other European countries come from the WHO data...
Article
Introduction: The term "total prevalence" stands for the number of people living at a given time, who are diagnosed with cancer, regardless of the moment, when the diagnosis was made. Total prevalence may be determined basing on the data from the cancer registry subject to the fact that the registry has been maintaining data collection for a long e...
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the aim is to estimate the future lung cancer incidence in Poland and Finland based on forecasts on hypothetical changes in smoking habits. data on population, lung cancer and smoking prevalence come from known sources. The simulation model utilized for forecasting was based on smoothing the smoking habit - specific risk ratios estimated for males...
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Although rates of detection of adenomatous lesions (tumors or polyps) and cecal intubation are recommended for use as quality indicators for screening colonoscopy, these measurements have not been validated, and their importance remains uncertain. We used a multivariate Cox proportional-hazards regression model to evaluate the influence of quality...
Article
Introduction. The survival rates are a unique tool allowing for quality evaluation of widely defined health care and the effectiveness of cancer treatment. The presented survival rates are, in fact, the first Polish analysis of cancer survival rates for the entire Polish population. Materials and methods. The analyses of survival rates were conduct...
Article
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The health transformation that took place after the Second World War in Europe was significantly delayed in the Central and Eastern European countries compared to countries of Northern Europe and United Kingdom. However, as death rates from cardiovascular disease have begun to fall since the 1990s, cancer has emerged as the most common cause of dea...
Article
The health transformation that took place after the Second World War in Europe was significantly delayed in the Central and Eastern European (CEE) countries compared to countries of Northern Europe and Great Britain. However, as death rates from cardiovascular disease have begun to fall, cancer has emerged, since the 1990s, as the most common cause...