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Familial upper aerodigestive tract cancers : incidence trends, familial clustering and subsequent cancers

Familial risks in upper aerodigestive tract cancer have been assessed mainly through case-control studies based on reported but not medically verified cancers in family members. The nationwide Swedish Family-Cancer Database was used to describe the incidence trends for all subsites of upper aerodigestive tract cancer and to calculate standardized incidence ratios (SIRs) and 95% confidence interval

Familial and second lung cancers : a nation-wide epidemiologic study from Sweden

The role of hereditary factors in tumor development has been less well understood for lung cancer than for many other human neoplastic diseases. The nation-wide Swedish Family-Cancer Database was used on 10.2 million individuals and 4524 lung cancers to calculate standardized incidence ratios (SIRs) and 95% confidence intervals (CIs) for histological subtypes of lung cancer in 0-66-year-old offspr

Familial and second primary pancreatic cancers : a nationwide epidemiologic study from Sweden

Familial risk of pancreatic cancer has been mainly assessed through case-control studies based on reported but not medically verified cancers in family members. We used the nationwide Swedish Family-Cancer Database on 10.2 million individuals and 21,000 pancreatic cancers to calculate standardized incidence ratios (SIRs) and 95% confidence intervals (CIs) for pancreatic cancer in 0- to 66-year-old

Cancer risks in Nordic immigrants and their offspring in Sweden

Numerous migrant studies on cancer have been carried out, but little data are available on cancer incidence upon inter-European migration. We used the nationwide Swedish Family-Cancer Database to analyse cancer risk among Nordic immigrants and their offspring in Sweden. The parental population had entered Sweden in their 20s and they had become parents in Sweden. Finns were the largest immigrant g

Familial risk of cancer by site and histopathology

Familial risks for histopathology-specific cancers have not been determined. We used the nationwide Swedish Family-Cancer Database on 10.2 million individuals and 1 million tumors to calculate standardized incidence ratios (SIRs) for familial cancers of specific histology and morphology among 0- to 66-year-old offspring. We used histology codes for both offspring and parents, but because of the li

Cancer risks in women who had children with different partners from the Swedish Family-Cancer Database

We used the nationwide Swedish Family-Cancer Database to analyse cancer risks in women who have had children with different men. Cancer cases were retrieved from the Swedish Cancer Registry for 1961-1998. A total of 3 million women and 316 497 cancer cases were covered. For women having children with more than one partner, an increased risk was shown for upper aerodigestive tract, anal, liver, pan

The nation-wide Swedish family-cancer database--updated structure and familial rates

The Swedish Family-Cancer Database was expanded to include all Swedes born in 1932 and later (offspring) with their parents, totaling 10.2 million individuals. Cancer cases were retrieved from the Swedish Cancer Registry from the years 1958 to 1998, including over 1 million primary cancers and in situ tumors. Some 10%, of offspring diagnosed with cancer lack any parental information. Incidence rat

Familial colorectal adenocarcinoma from the Swedish Family-Cancer Database

Familial risks for colorectal (CRC) adenocarcinoma were characterized from the Swedish Family-Cancer Database covering 9.6 million individuals, whose family relationships and cancers were obtained from registered sources, not sensitive to reporting or ascertainment bias. Cancer cases were retrieved from the Swedish Cancer Registry from years 1958-96. Standardized incidence ratios (SIRs) were calcu

Familial carcinoid tumors and subsequent cancers : a nation-wide epidemiologic study from Sweden

Carcinoids are rare neuroendocrine tumors, mainly located in the bowel, stomach and lung. Familial risks in carcinoid tumours are not well known apart from multiple endocrine neoplasia 1 (MEN1). We used the nation-wide Swedish Family-Cancer Database on 10.1 million individuals for assessment. Carcinoid tumors were retrieved from the Cancer Registry covering the years 1958-1998. The offspring gener

A population-based study of familial central nervous system hemangioblastomas

We used the nationwide Swedish Family-Cancer Database to analyze the risk for central nervous system hemangioblastoma (HB) in offspring (0-61 years) of parents with cancer. Eighty-three offspring were identified, and the age at onset showed a bimodal distribution. The early-onset component peaked at 25-29 years, was associated with von Hippel-Lindau (VHL) disease and presented with HBs, renal cell

Incidence trends and risk factors of carcinoid tumors : a nationwide epidemiologic study from Sweden

BACKGROUND: Carcinoids are rare indolent neuroendocrine tumors, mainly located in bowel, stomach, and lung. Their etiology is virtually unknown although a family history is a minor cause.METHODS: Site specific incidence trends and several risk factors of carcinoid tumors were studied based on the nationwide Swedish Family-Cancer Database of 10.2 million individuals and their more than 1 million tu

Second primary cancers after sporadic and familial colorectal cancer

Second cancers were studied among 68,104 cases of colorectal cancer (CRC) from the Swedish Family-Cancer Database. A total of 1,113 patients received a diagnosis of second CRC; 25 of them had a family history of CRC. Cases of second CRC with a family history were diagnosed up to 10 years before sporadic cases. The relative risk (RR) of all second CRCs was 2.21 compared with the first CRC. Familial

Gender-specific incidence trends in lung cancer by histological type in Sweden, 1958-1996

We used the Swedish Family-Cancer Database to examine the time trends of lung cancer in Sweden by histological type, with special reference to gender. A total of 45,297 lung cancer cases were analysed. The overall age-adjusted incidence rates of squamous cell carcinoma (SCC) in men peaked in the 1980s and then slightly decreased, while corresponding rates in women increased steadily. The incidence

Parental cancer as a risk factor for brain tumors (Sweden)

OBJECTIVE: We used the nationwide Swedish Family-Cancer Database to analyze the risk for adult (15-61 years) brain tumors in offspring through parental cancer probands. Additionally, cancer risks were assessed among siblings of brain tumor probands.METHODS: In offspring and parents, respectively, 5,425 and 20,938 cases of brain tumors were diagnosed between the years 1958 and 1996. Groups of offsp

A population-based study of familial soft tissue tumors

We used the nationwide Swedish Family-Cancer Database to analyze the risk for soft tissue tumors in offspring by parental cancers and in siblings of soft tissue tumor probands. Additionally, risk for second cancer following soft tissue tumor was investigated. In offspring, 1488 soft tissue tumors were diagnosed between years 1958 and 1996. Groups of offspring were compared by calculating standardi

Familial colorectal adenocarcinoma and hereditary nonpolyposis colorectal cancer : a nationwide epidemiological study from Sweden

Although estimates are available of the proportion of hereditary nonpolyposis colorectal cancer (HNPCC) among all colorectal cancer (CRC), its proportion among familial CRC is unclear. We estimated these proportions epidemiologically from the nationwide Swedish Family-Cancer Database on 9.6 million individuals. Colorectal adenocarcinomas were retrieved from the Cancer Registry covering years 1958-

Cancers in the first-degree relatives of children with brain tumours

We used the nationwide Swedish Family-Cancer Database with 2060 childhood brain tumours diagnosed in the period 1958-1996 to analyse the risk of this tumour by parental cancers and in siblings of childhood brain tumour probands. Groups of patients were compared by calculating standardized incidence ratios (SIRs) for brain tumours in offspring. 1.3% of brain tumour patients had a parent with nervou

Familial risks in invasive and in situ cervical cancer by histological type

The Swedish Family-Cancer Database was used to analyse familial relationships in mothers and daughters with invasive and in situ cervical cancers by histological type during the years 1958-1996, including a total of 21,727 and 191,081 cases, respectively. Familial standardized incidence ratios (SIRs) were calculated separately for mothers and daughters and for invasive and in situ squamous cell ca