Bjarte Aagnes

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Limited data are available on the carcinogenicity of smokeless tobacco products in organs other than the mouth. Snus is a smokeless tobacco product widely used in Norway. We studied 10,136 Norwegian men enrolled since 1966 in a prospective cohort study, 31.7% of whom were exposed to snus. The relative risk of pancreatic cancer for snus use was 1.67 (95%(More)
OBJECTIVE Pancreatic cancer is the second most frequent gastrointestinal cancer in the Western world. Few reports on concomitant trends in pancreatic cancer incidence, diagnosis, mortality and survival exist at the national level. This study provides a baseline overview of the temporal patterns in these four indicators over the past four decades in Norway.(More)
Statistical cure is reached when a group of patients has the same mortality as cancer-free individuals. Cure models predict the cured proportion and the median survival of fatal cases. Cure models have seldom been applied and tested systematically across all major cancer sites. Incidence and follow-up data on 23 cancer sites recorded at the Cancer Registry(More)
Several studies report varying incidence rates of cancer in subsites of the colorectum, as an increasing proportion appears to develop in the proximal colon. Varying incidence trends together with biological differences between the colorectal segments raise questions of whether lifestyle factors impact on the risk of cancer differently at colorectal(More)
BACKGROUND Epidemiological studies show an increasing trend in the incidence of neuroendocrine neoplasms (NENs). A significant number of NENs occur in less common primary sites, but they are often excluded from the population-based studies. We studied the incidence trends of all NENs in Norway according to different primary sites. MATERIALS AND METHODS(More)
OBJECTIVE The aim of this communication was to report the overall incidence of cancer in a cohort of male Norwegian offshore oil workers. METHODS The Offshore Cohort was comprised of >25,000 men who were employed at installations in the North Sea in the period 1965-1999, and who responded to a questionnaire that included work history offshore, other(More)
BACKGROUND Evidence from clinical, population-based and molecular studies has shown that human papillomavirus (HPV) infection can be a causal risk factor for a subset of head and neck squamous cell carcinomas (HNSCC). It is proposed that HPV-associated oropharyngeal cancer is a new disease entity that requires treatment and prevention strategies distinct(More)
Objective. A shift in the total incidence from left- to right-sided colon cancer has been reported and raises the question as to whether lifestyle risk factors are responsible for the changing subsite distribution of colon cancer. The present study provides a review of the subsite-specific risk estimates for the dietary components presently regarded as(More)
Urothelial carcinoma of the urinary bladder (UCB) is the 4th most common cancer type in men in developed countries, and tumor recurrence or progression occurs in more than half of the patients. Previous studies report contradictory trends in incidence and survival over the past decades. This article describes the trends of UCB incidence and survival from(More)
BACKGROUND Providing accurate predictions of long-term net survival for recently diagnosed cancer patients is challenging due to the lack of follow-up. The aim of this study was to empirically compare predictions of net survival obtained from a flexible parametric excess hazard model to predictions obtained using the period and hybrid approaches. METHODS(More)