Second primary cancers in patients with a pharyngeal index tumour: a register-based cohort study.

Background: While prior research on the SPC (second primary cancer) risk among pharyngeal carcinoma (PC) patients has been conducted in other regions, the European perspective is underrepresented. Our register-based cohort study aims to assess the subsite-specific risk of SPC among individuals initially diagnosed with a pharyngeal index tumour.

Methods: Standardized incidence ratios (SIR) of SPC were calculated relative to the general population for all patients diagnosed with a primary oropharyngeal, nasopharyngeal, and hypopharyngeal carcinoma (OPC, NPC, and HPC) in Finland during 1953-2021.

Leaving the parental home, cohabitation, and marriage after a hematologic malignancy in childhood-A register-based cohort study from the SALiCCS research program.

Introduction: Transitioning to adulthood often involves achieving independence from the parental home. We assessed whether the likelihood of leaving the parental home, cohabitation, and marriage was similar between patients who experienced a hematologic malignancy at a young age and their peers.

Methods: We identified 11,575 patients diagnosed with a hematologic malignancy under the age of 20 years between 1971 and 2011 in Denmark, Finland, and Sweden, 57,727 country-, age-, and sex-matched population comparisons and 11,803 sibling comparisons and obtained annual information on family and marital status by linking to the statistical institute databases.

Risk of Second Primary Cancer Among Patients with Cardio-Esophageal Cancer in Finland: A Nationwide Population-Based Study.

Purpose: The occurrence of a second primary cancer (SPC) after primary esophageal carcinoma (EC) or gastric cardia carcinoma(GCC) is well acknowledged. However, previous research on the risk of SPC among these patients has been predominantly conducted in Asian countries. Yet, notable population-dependent variation in histological types and risk profiles exists.

Relative risk of second malignant neoplasms highest among young adult cancer patients - a population-based registry study in Finland.

Background And Purpose: The objective of this study was to explore the incidence of second malignant neoplasms (SMNs) among adult cancer patients in Finland diagnosed with their first primary cancer (FPC) in 1992-2021.

Material And Methods: The study used data from the population-based Finnish Cancer Registry (FCR). Risk estimates were calculated using the standardised incidence ratio (SIR), the ratio of observed second cancers compared to the expected numbers assuming the same cancer incidence as the corresponding sex-age-calendar year -split of the general population.

TNM stage in the Nordic Cancer Registries 2004-2016: Registration and availability.

Background And Purpose: Stage at cancer diagnosis is an important predictor of cancer survival. TNM stage is constructed for anatomic solid cancer diagnoses from tumor size (T), nodal spread (N) and distant metastasis (M) and categorized in groups 0-I, II, II and IV. TNM stage is imperative in cancer diagnosis, management and control, and of high value in cancer surveillance, for example, monitoring of stage distributions.

Subsequent malignant neoplasms after primary hematological malignancy in adult patients.

Patients with primary hematological malignancy (HM) are at an elevated risk of subsequent malignant neoplasms (SMNs), which is a common concern after treatment of primary cancer. We identified 45,533 patients aged ≥20 years and diagnosed with primary HM in Finland from 1992 to 2019 from the Finnish Cancer Registry and estimated standardized incidence ratios (SIR) and excess absolute risks per 1000 person-years (EAR) for SMNs. A total of 6076 SMNs were found (4604 solid and 1472 hematological SMNs).

Have the recent advancements in cancer therapy and survival benefitted patients of all age groups across the Nordic countries? NORDCAN survival analyses 2002-2021.

Background: Since the early 2000s, overall and site-specific cancer survival have improved substantially in the Nordic countries. We evaluated whether the improvements have been similar across countries, major cancer types, and age groups.

Material And Methods: Using population-based data from the five Nordic cancer registries recorded in the NORDCAN database, we included a cohort of 1,525,854 men and 1,378,470 women diagnosed with cancer (except non-melanoma skin cancer) during 2002-2021, and followed for death until 2021.

Pairwise association of key lifestyle factors and risk of solid cancers - A prospective pooled multi-cohort register study.

Smoking, alcohol consumption, obesity, and physical inactivity are key lifestyle risk factors for cancer. Previously these have been mostly examined singly or combined as an index, assuming independent and equivalent effects to cancer risk. The aim of our study was to systematically examine the joint pairwise and interactive effects of these lifestyle factors on the risk of a first solid primary cancer in a multi-cohort prospective setting.

Every tenth malignant solid tumor attributed to overweight and alcohol consumption: A population-based cohort study.

Background: Recent studies have shown that some four in ten cancers are attributable to a few key risk factors. The aim of this study was to estimate cohort-based population attributable fractions (PAFs) in Finland for potentially modifiable cancer risk factors.

Methods: Data from eight health studies including 253,953 subjects with 29,802 incident malignant solid tumors were analysed using Bayesian multivariate regression model with multiplicative risk factor effects.

Educational attainment in survivors of childhood cancer in Denmark, Finland, and Sweden.

Background: Survivors of childhood cancer may face difficulties at school. We investigated whether childhood cancer affects attainment of upper secondary education, in a register-based cohort study from Denmark, Finland, and Sweden, where we limit bias from selection and participation.

Methods: From the national cancer registers, we identified all long-term survivors of childhood cancer diagnosed aged 0-14 years in 1971-2005 (n = 7629), compared them to matched population comparisons (n = 35,411) and siblings (n = 6114), using odds ratios (OR) and 95% confidence intervals (CI).

Significant risk of second primary cancer among laryngeal squamous cell carcinoma patients even after 20 years.

Background: Evidence on the risk of second primary cancer (SPC) following primary laryngeal squamous cell carcinoma (LSCC) is limited, especially in Europe.

Methods: Patients diagnosed with primary LSCC from 1953-2018 were retrieved from the Finnish Cancer Registry. A total of 6241 LSCC patients were identified adding to 49,393 person-years (PY) of follow-up until the end of 2019.

Income disparities between adult childhood cancer survivors and their peers-A register-based cohort study from the SALiCCS research programme.

Background: Childhood cancer survivors face various adverse consequences. This Nordic register-based cohort study aimed to assess whether survivors of childhood cancer are more likely to have low income than their peers.

Methods: We identified 17,392 childhood cancer survivors diagnosed at ages 0 to 19 between 1971 and 2009 with 83,221 age-, sex-, and country-matched population comparisons.

Transformation and survival in marginal zone lymphoma: a Finnish nationwide population-based study.

Marginal zone lymphoma (MZL) is an indolent B-cell malignancy with heterogeneous anatomical and clinical presentation. While MZLs are generally associated with long survival, some patients experience histological transformation to aggressive large B-cell lymphoma. Population-based long-term data on the transformation of MZL is limited.

Familial aggregation of early-onset cancers in early-onset breast cancer families.

The risk of early-onset (EO) breast cancer is known to be increased in relatives of EO breast cancer patients, but less is known about the familial risk of other EO cancers. We assessed familial risks of EO cancers (aged ≤40 years) other than breast cancer in 54 753 relatives of 5562 women with EO breast cancer (probands) by using a population-based cohort from Finland. Standardized incidence ratios (SIRs) and 95% confidence intervals (CI) were estimated by using gender-, age- and period-specific cancer incidences of the general population as reference.

Incidence of head and neck cancer among first-generation immigrants and their children in Finland.

Introduction: Limited data exist regarding head and neck cancer (HNC) burden among immigrants who may have distinct characteristics, and hence different incidence rates from the general population. Variations in behavioral habits, cultural lifestyle, or diet may cause variations across different subgroups.

Methods: The whole immigrant population of Finnish residents born abroad, and their children were retrieved for the years 1970-2017.

Use of health services one year before primary colorectal cancer.

Background: Colorectal cancer (CRC) patient pathways focus typically on periods after confirmed diagnosis and only limited data are available on pathways prior to cancer diagnosis. The aim of the study was to describe the use of health services (HS) one year before diagnosis among CRC patients in Finland. We also studied the role of sex, age, stage, and university hospital district in relation to the use of HS during the pre-diagnostic phase.

Lung cancer registries in Denmark, Finland, Norway and Sweden: a comparison and proposal for harmonization.

Background: Lung cancer is the leading cause of cancer-related death in all Nordic countries which, though similar in demographics and healthcare systems, have noticeable differences in lung cancer survival. Historically, Denmark and Finland have had higher lung cancer incidences and lower survival than Norway and Sweden. All four countries have national cancer registries.

Sexually transmitted diseases in cancer patients diagnosed under the age of 20 years - a national registry-based cohort study from Finland.

Background: Adolescents with chronic diseases are shown to be vulnerable for risky sexual behavior. Childhood cancer patients seem to engage in risky health behaviors as frequently as general population, but little is known about sexual issues in this group of patients.

Material And Methods: We characterized the risk for sexually transmitted diseases (STD) in a Finnish population-based cohort of over 6,000 childhood cancer patients diagnosed with cancer under the age of 20 years between 1971 and 2009, compared with over 30,000 age- and sex -matched population comparisons.

Quality of life and Its Determinants among Cervical Cancer Patients in South India.

Introduction: Cervical Cancer is the leading cause of morbidity and mortality in India. It affects the patient's, physical and psychological state which results in lower quality of life (QoL). Women with cervical cancer may require counselling and time to enable them to deal with the disease and its treatment.

Periodic trends in geographical variation of prostate cancer incidence and mortality in Finland between 1985 and 2019.

Background: Evaluation of regional variation of prostate cancer (PCa) incidence and PCa-specific mortality is essential in the assessment of equity in a national healthcare system. We evaluated PCa incidence and PCa-specific mortality between different municipalities and hospital districts in Finland over 1985-2019.

Material And Methods: Men diagnosed with PCa in Finland from 1985 through 2019 were retrieved from Finnish Cancer Registry.

What can We Learn From High-Performing Screening Programs to Increase Bowel Cancer Screening Participation in Australia?

Background: Colorectal cancer (CRC) is the second most diagnosed cancer in men and women and second most common cause of cancer death in Australia; Australia's CRC incidence and mortality are among the world's highest. The Australian National Bowel Cancer Screening Program began in 2006; however, only 33% of those approached for the first time by the Program between 2018 and 2019 returned the kit. Of the 5.

The impact of the COVID-19 pandemic on cancer diagnosis based on pathology notifications: A comparison across the Nordic countries during 2020.

The severity of the COVID-19 pandemic and subsequent mitigation strategies have varied across the Nordic countries. In a joint Nordic population-based effort, we compared patterns of new cancer cases and notifications between the Nordic countries during 2020. We used pathology notifications to cancer registries in Denmark, the Faroe Islands, Finland, Iceland, Norway and Sweden to determine monthly numbers of pathology notifications of malignant and in situ tumours from January to December 2020 compared to 2019 (2017-2019 for Iceland and the Faroe Islands).

Pairwise association of key lifestyle factors and risk of colorectal cancer: a prospective pooled multicohort study.

Background: Several lifestyle factors are associated with an increased risk of colorectal cancer (CRC). Although lifestyle factors co-occur, in most previous studies these factors have been studied focusing upon a single risk factor or assuming independent effects between risk factors.

Aim: To examine the pairwise effects and interactions of smoking, alcohol consumption, physical inactivity, and body mass index (BMI) with risk of subsequent colorectal cancer (CRC).

Transformation and outcome of nodular lymphocyte predominant Hodgkin lymphoma: a Finnish Nationwide population-based study.

Nodular lymphocyte predominant Hodgkin lymphoma (NLPHL) is a rare B-cell malignancy associated with excellent survival. However, some patients experience histological transformation into aggressive large B-cell lymphoma. Population-based data on transformation in patients with NLPHL is limited.

Employment status and occupational positions of childhood cancer survivors from Denmark, Finland and Sweden: A Nordic register-based cohort study from the SALiCCS research programme.

Background: A childhood cancer diagnosis and late effects of treatment may affect survivors' possibilities of employment or highly skilled occupations later in life. In this study, we compared the employment and occupational status of childhood cancer survivors with population comparisons and siblings.

Methods: In a cohort study based on Nordic registers, we identified 10 461 survivors of childhood cancer diagnosed before age 20 years in Denmark, Finland and Sweden since 1971.