Publications by authors named "Lapotre-Ledoux B"

Background: The impact of geographical accessibility on cancer survival has been investigated in few studies, with most research focusing on access to reference care centers, using overall mortality and limited to specific cancer sites. This study aims to examine the association of access to primary care with mortality in excess of patients with the 10 most frequent cancers in France, while controlling for socioeconomic deprivation.

Methods: This study included a total of 151,984 cases diagnosed with the 10 most common cancer sites in 21 French cancer registries between 2013 and 2015.

View Article and Find Full Text PDF

Purpose: Three generic claims-based algorithms based on the Illness Classification of Diseases (10th revision- ICD-10) codes, French Long-Term Illness (LTI) data, and the Diagnosis Related Group program (DRG) were developed to identify retirees with cancer using data from the French national health insurance information system (Système national des données de santé or SNDS) which covers the entire French population. The present study aimed to calculate the algorithms' performances and to describe false positives and negatives in detail.

Methods: Between 2011 and 2016, data from 7544 participants of the French retired self-employed craftsperson cohort (ESPrI) were first matched to the SNDS data, and then toFrench population-based cancer registries data, used as the gold standard.

View Article and Find Full Text PDF

Objectives: To describe the evolution of the incidence of oral cavity cancers (OCC) among elderly patients in France between 1990 and 2018 and to compare it to the incidence of other cancers sharing the same main risk factors.

Material And Methods: The incidence of cancers in mainland France from 1990 to 2018 was estimated from incidence data observed in every cancer registry of the Francim network. Incidence was modeled by a 2-dimensional penalized spline of age and year of diagnosis, associated with a random effect corresponding to the registry.

View Article and Find Full Text PDF
Article Synopsis
  • Lung cancer is a leading cause of cancer death, and a study called DEP KP80 in the French department of Somme explored the effectiveness of low-dose CT scan screening in reducing mortality.
  • The study compared patients diagnosed with lung cancer who were screened versus those who weren't, finding that screened patients had a higher rate of early-stage cancers (77.8%) compared to unscreened patients (31%).
  • Results indicated that screening not only improved early diagnosis but also led to better survival rates, more surgical options, and quicker treatment initiation for screened patients.
View Article and Find Full Text PDF

Purpose: In an attempt to understand why cervical cancer (CC) survival is decreasing with diagnosis period among older women in France, this study aimed to estimate the effects of main prognostic factors on net survival in CC according to age.

Methods: French cancer registries databases were used to retrospectively analyze women diagnosed with CC in 2011-2012. Net survival was estimated with the Pohar-Perme method and prognostic factors (socio-demographic, clinical variables, stage at diagnosis, therapeutic management) were analyzed with Lambert and Royston's flexible parametric model.

View Article and Find Full Text PDF

Background: Morbidity and mortality associated with prostate cancer in a given geographic area might be related to the level of socioeconomic deprivation. The Somme area (a region of northern France) is considered economically disadvantaged, with major territorial disparities. The aim of this study was to assess the impact of the socioeconomic level on prostate cancer, using data from a population-based cancer registry.

View Article and Find Full Text PDF
Article Synopsis
  • A study was conducted to determine the best time frame for considering second primary cancers (SPCs) following a first cancer diagnosis, as current definitions vary widely without clear reasoning. //!
  • Researchers analyzed data from 696,775 patients diagnosed with a first cancer between 1989 and 2010, finding a median synchronicity period of about 120.5 days, which translates to approximately 4 months. //!
  • The study revealed variations in this synchronicity period based on factors like gender, age, and the type of first cancer, indicating that men tended to take longer to show SPC compared to women. //!
View Article and Find Full Text PDF

Purpose: To evaluate the evolution of living conditions (LC) in long-term survivors of localised prostate cancer 10 years after treatment compared with those of a same-age control group from the general population.

Methods: Two hundred and eighty-seven patients diagnosed with prostate cancer in 2001 were selected in 11 French cancer registries. They were matched with controls randomly selected for age and residency.

View Article and Find Full Text PDF

Background: Gastric mucosa-associated lymphoid tissue (MALT) lymphoma is a rare disease, and most available data on gastric MALT lymphoma (GML) come from clinical studies of selected patients treated in centres of excellence.

Aims: To analyse the clinical features, management and survival of GML patients in a population-based study in France METHODS: All new cases of GML diagnosed between 2002 and 2010 in 11 French areas covered by cancer registries were included. Pathology reports were verified and, if necessary, reviewed by an expert pathologist.

View Article and Find Full Text PDF

Background: Survival rates of lung cancer remains poor and the impact of comorbidities on the prognosis is discussed. The objective of this study was to assess if the Charlson Comorbidity Index (CCI) was associated with 8-year survival rates by histological type.

Methods: A cohort study was conducted using randomly selected cases from 10 French cancer registries.

View Article and Find Full Text PDF

Purpose: To analyze trends in second primary cancer (SPC) incidence by using a case-mix approach to standardize on first cancer site distribution.

Methods: Cases registered by 13 French cancer registries between 1989 and 2010 and followed-up until June 2013 were included. The person-year approach was used to compute standardized incidence ratios (SIRs) of metachronous SPC.

View Article and Find Full Text PDF

Background: Merkel cell carcinoma (MCC) is a rare primary cutaneous neuroendocrine carcinoma. Owing to its low incidence, epidemiological data are scarce and have never been analysed in France to identify the main epidemiological trends.

Methods: Data from MCC patients diagnosed between 1998 and 2010 were obtained from 11 French cancer registries in the FRANCIM network.

View Article and Find Full Text PDF

Objective: To present methodological issues that can arise with the assessment of the risk of a second primary cancer (SPC) occurring in the same site as a first cancer using registry data.

Material And Methods: Data from ten French cancer registries were used, including data for patients with a first prostate cancer (in males), breast cancer (in females), and colon, lung and kidney cancer (in both sexes) diagnosed between 1989 and 2004. Standardized incidence ratios (SIRs) of SPC were computed by excluding, or not, the risk of an SPC at the same site.

View Article and Find Full Text PDF

Head and neck cancers have a very poor prognosis and are common in France. They are subject to various recommendations for early detection and management, but there is no detailed data in the French general population to fuel the public health debate on it.A high-resolution population-based study about cancer management was conducted, using cancers registries in the north-west of France, on 1729 tumors diagnosed between 2008 and 2010.

View Article and Find Full Text PDF

Despite the frequency and lethality of oral cancers in France, there are no detailed general population data regarding the characteristics of these patients to fuel the public health authorities' reflections about early detection policies. Thus, the objective of this study was to determine, in the general population, the characteristics of both patients and tumours at the time of the diagnosis. A high-resolution, population-based study using 13 French registries was conducted on 1089 tumours diagnosed in 2010.

View Article and Find Full Text PDF

Background: To develop a prediction model to quantify the cumulative risk of Second Primary Cancer (SPC) among cancer patients given that they survive their disease.

Methods: A cohort of 293,435 patients based on data from twelve French cancer registries was analyzed. For five first cancer sites, SPC incidence rates were estimated using Poisson regression models.

View Article and Find Full Text PDF

Background: In the context of early detection of head and neck cancers (HNC), the aim of this study was to describe how people sought medical consultation during the year prior to diagnosis and the impact on the stage of the cancer.

Methods: Patients over 20 years old with a diagnosis of HNC in 2010 were included from four French cancer registries. The medical data were matched with data regarding uptake of healthcare issued from French National Health Insurance General Regime.

View Article and Find Full Text PDF

Human papillomaviruses (HPV) are involved in the development of anogenital and head and neck cancers. The purpose of this study was to assess the risk of developing a second primary cancer (SPC) after a first potentially-HPV-related cancer, and to analyze the sites where SPCs most frequently occurred in these patients. All patients with a first cancer diagnosed between 1989 and 2004, as recorded by 10 French cancer registries, were followed up until December 31, 2007.

View Article and Find Full Text PDF

Head and neck cancers (HNC) have a poor prognosis and a long treatment delay may have a negative impact on this. Some studies have investigated the determinants of this delay but not in the general population and rarely taking into account socio-economic factors. A high-resolution population-based study about cancer management was conducted, using registries in the north-west of France, on HNC diagnosed between 2008 and 2010.

View Article and Find Full Text PDF

Background: The association between lung cancer and occupational exposure to organic solvents is discussed. Since different solvents are often used simultaneously, it is difficult to assess the role of individual substances.

Objectives: The present study is focused on an in-depth investigation of the potential association between lung cancer risk and occupational exposure to a large group of organic solvents, taking into account the well-known risk factors for lung cancer, tobacco smoking and occupational exposure to asbestos.

View Article and Find Full Text PDF

Background: Population attributable risks (PARs) are useful tool to estimate the burden of risk factors in cancer incidence. Few studies estimated the PARs of oral cavity cancer to tobacco smoking alone, alcohol drinking alone and their joint consumption but none performed analysis stratified by subsite, gender or age. Among the suspected risk factors of oral cavity cancer, only PAR to a family history of head and neck cancer was reported in two studies.

View Article and Find Full Text PDF

Objectives: To determine whether the risk of second primary cancer (SPC) among patients with bladder cancer (BCa) has changed over past years.

Materials And Methods: Data from 10 French population-based cancer registries were used to establish a cohort of 10 047 patients diagnosed with a first invasive (≥T1) BCa between 1989 and 2004 and followed up until 2007. An SPC was defined as the first subsequent primary cancer occurring at least 2 months after a BCa diagnosis.

View Article and Find Full Text PDF

Objective: The aim of this epidemiological study was to describe the incidence, mortality and survival of ovarian cancer (OC) in France, according to age, period of diagnosis, and histological type.

Methods: Incidence and mortality were estimated from 1980 to 2012 based on data in French cancer registries and from the Centre for Epidemiology of Causes of Death (CépiDc-Inserm) up to 2009. Net survival was estimated from registry data using the Pohar-Perme method, on cases diagnosed between 1989 and 2010, with date of last follow-up set at 30 June 2013.

View Article and Find Full Text PDF

Introduction: Oral cavity cancer is frequent. Prognosis of this cancer is closely linked to the development. Although the oral cavity is a potentially accessible site for examination, up to 50% of oral cancers are not detected until the disease is well advanced.

View Article and Find Full Text PDF

Objectives: To assess the risk of lung cancer associated with exposure to mineral wools (MWs), while taking into account smoking, asbestos, and crystalline silica exposures.

Methods: The analyses were restricted to men (1350 cases and 1912 controls). Lifelong occupational history was collected.

View Article and Find Full Text PDF