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Sökning: WFRF:(Hemminki Kari) > (2015-2019) > (2015) > Sundquist Kristina

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  • Hemminki, Kari, et al. (författare)
  • Risk of Cancer of Unknown Primary after Hospitalization for Autoimmune Diseases.
  • 2015
  • Ingår i: International Journal of Cancer. - : Wiley. - 0020-7136. ; 137:12, s. 2885-2895
  • Tidskriftsartikel (refereegranskat)abstract
    • Cancer of unknown primary (CUP) is a heterogeneous syndrome diagnosed at metastatic sites. The etiology is unknown but immune dysfunction may be a contributing factor. Patients with autoimmune diseases were identified from the Swedish Hospital Discharge Register and linked to the Swedish Cancer Registry. Standardized incidence ratios (SIRs) were calculated for subsequent CUP and compared with subjects without autoimmune diseases. A total of 789,681 patients were hospitalized for any of 32 autoimmune diseases during years 1964-2012; 2658 developed subsequent CUP, giving an overall SIR of 1.27. A total of 16 autoimmune diseases were associated with an increased risk for CUP; polymyositis/dermatomyositis showed the highest SIR of 3.51, followed by primary biliary cirrhosis (1.81) and Addison's disease (1.77). CUP risk is known to be reduced in long-time users of pain-relieving nonsteroidal anti-inflammatory drugs (NSAIDs), such as aspirin. For patients with ankylosing spondylitis and with some other autoimmune diseases, with assumed chronic medication by NSAIDSs, CUP risks decreased in long-term follow-up. The overall risk of CUP was increased among patients diagnosed with autoimmune diseases, which call for clinical attention and suggest a possible role of immune dysfunction in CUP. The associations with many autoimmune diseases were weak which may imply that autoimmunity may not synergize with CUP-related immune dysfunction. However, long-term NSAID medication probably helped to curtail risks in some autoimmune diseases and CUP risks were generally higher in autoimmune diseases for which NSAIDs are not used and for these CUP appears to be a serious side-effect. This article is protected by copyright. All rights reserved.
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  • Hemminki, Kari, et al. (författare)
  • Subsequent Type 2 Diabetes in Patients with Autoimmune Disease.
  • 2015
  • Ingår i: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 5
  • Tidskriftsartikel (refereegranskat)abstract
    • Immunological data show that type 2 diabetes (T2D) manifests autoimmune features. We wanted to test the association epidemiologically by assessing subsequent diagnosis of T2D following diagnosis of autoimmune disease (AId) and subsequent AId after T2D in the same individuals. Patients were identified from three Swedish health databases. A total of 32 different AId were included. Standardized incidence ratios (SIRs) were calculated for T2D diagnosis in patients with previously diagnosed AId and compared to those without a previous AId. Among a total of 757,368 AId patients, 15,103 were diagnosed with T2D, giving an overall SIR for T2D of 1.66. T2D risks were increased after 27 AIds; the highest SIRs were noted for chorea minor (8.00), lupoid hepatitis (5.75), and Addison disease (2.63). T2D was increased after 27 of 32 AIds but we were unable to control for factors such as obesity and smoking. However, the clearly increased risks for T2D in most types of AId patients, and in reverse order increased risks for AId after T2D, do not support an overall confounding by life-style factors. Mechanistic links shared by T2D, AId and life-style factors such as obesity, perhaps through chronic inflammation, may drive autoimmune activation of T2D and many AIds.
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  • Hemminki, Kari, et al. (författare)
  • Thalassemia and sickle cell anemia in Swedish immigrants : Genetic diseases have become global
  • 2015
  • Ingår i: SAGE Open Medicine. - : SAGE Publications. - 2050-3121. ; 3
  • Tidskriftsartikel (refereegranskat)abstract
    • AIMS: Some 15% of the Swedish population is born outside Sweden, originating from all continents of the world. Thalassemia and sickle cell anemia constitute the most common inherited recessive disorders globally and they are endemic in areas of Africa and Asia, origins of many immigrants to Sweden. We aimed at investigating the origins of the Swedish sickle cell and thalassemia patients.METHODS: Patients were identified using data from the Swedish Hospital Discharge Register since 1987 and from the Outpatient Register since 2001 up to year 2010.RESULTS: A total of 3064 persons were diagnosed with thalassemia. The incidence was highest, 62.9/100,000 for immigrants from Thailand, followed by Iraqis (47.1/100,000); the rate was 0.7/100,000 among those born in Sweden. The total number of sickle cell anemia patients was 584 and the highest rate of 13.0/100,000 was found for Sub-Saharan immigrants. For thalassemia, 363 of the patients were siblings, while for sickle cell anemia, 180 were siblings.CONCLUSIONS: The data showed that >90% of sickle cell and thalassemia patients were first- or second-generation immigrants to Sweden and the endemic regions for these were the origins of immigrants with the highest incidence. Global immigration provides global challenges to national health care systems.
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  • Kharazmi, Elham, et al. (författare)
  • Risk of familial classical Hodgkin lymphoma by relationship, histology, age, and sex: A joint study from five Nordic countries.
  • 2015
  • Ingår i: Blood. - : American Society of Hematology. - 1528-0020 .- 0006-4971. ; 126:17, s. 1990-1995
  • Tidskriftsartikel (refereegranskat)abstract
    • The rarity of familial Hodgkin lymphoma (HL) has hampered detailed analyses of familial clustering. We aimed to provide the familial risk of HL by relationship, histology, age at diagnosis and sex. A cohort of 57,475 first-degree relatives of 13,922 HL patients, diagnosed between 1955 and 2009, in five European countries was followed for HL incidence. Standardized incidence ratios (SIRs) were calculated using histology-, age-, sex-, period-, and country-specific incidence rates as the reference. The lifetime cumulative risks (CR) were also calculated. The overall CR of HL in first-degree relatives of a patient with HL was 0.6%, which represents a 3-fold (SIR=3.3, 95%CI=2.8-3.9) increased risk over the general population risk. The risk in siblings (6.0-fold; 4.8-7.4) was significantly higher than in parents/children (2.1-fold; 1.6-2.6). Very high lifetime risk of HL was found for those with multiple affected first-degree relatives (13-fold; 2.8-39) and for same-sex twins (57-fold; 21-125). We found high familial risks between some concordant histological subtypes of HL [lymphocyte-rich (81-fold, 30-177) and nodular sclerosis (4.6-fold, 2.9-7.0)] and also between some discordant subtypes. The familial risk in sisters (9.4-fold; 5.9-14) was higher than in brothers (4.5-fold; 2.9-6.7) or unlike-sex siblings (5.9-fold; 4.3-8.1). The lifetime risk of HL was higher when first-degree relatives were diagnosed at early ages (before age 30). This study provides tangible absolute risk estimates for relatives of HL patients, which can be used as a sex-, age-, and family history-based risk calculator for classical Hodgkin lymphoma by oncologists and genetic counselors.
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8.
  • Liu, Xiangdong, et al. (författare)
  • Cancer risk and mortality in asthma patients: A Swedish national cohort study.
  • 2015
  • Ingår i: Acta Oncologica. - 1651-226X. ; 54:8, s. 1120-1127
  • Tidskriftsartikel (refereegranskat)abstract
    • Background. Previous studies found an increased risk of cancer in hospitalized asthma patients, but it is not known whether patients from primary health care show a similar risk pattern. In addition, it is unclear whether the diagnosis of asthma can influence the prognosis of subsequent cancer. Methods. Asthma patients were identified from Swedish inpatient, outpatient, and primary health care registers, and were linked to the Swedish Cancer Registry to identify subsequent diagnoses of cancer. Standardized incidence ratios (SIRs) were used to examine the risk of cancer in asthma patients compared with subjects without asthma. In addition, we used Cox proportional hazards regression to estimate hazard ratios (HRs) for mortality in patients with both asthma and cancer. Results. A total of 10 649 cancers were diagnosed in patients with previous asthma, with a SIR of 1.19 (95% CI 1.17-1.21). A total of 15 cancer sites showed an increased incidence, whereas two cancer sites showed a decreased risk. Non-allergic asthma showed the highest risk of cancer (SIR = 1.25, 95% CI 1.18-1.32), followed by unspecified asthma (SIR = 1.22, 95% CI 1.19-1.25), status asthmaticus (SIR = 1.19, 95% CI 1.02-1.39), and allergic asthma (SIR = 1.14, 95% CI 1.06-1.22). The risk of cancer was similarly increased in asthma patients diagnosed in primary health care and those diagnosed in hospitals. Cancer patients with previous asthma had increased mortality, with a HR of 1.55 (95% CI 1.50-1.60). HRs ranged from 1.09 to 1.94 for different sites/types of cancer. Conclusions. Patients with asthma, irrespective of whether they were treated in primary health care or hospitals, had an increased risk of cancer. In addition, cancer patients with previous asthma had a worse prognosis compared with those without asthma, suggesting that these patients may require a multidisciplinary approach to manage the comorbidity.
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9.
  • Liu, Xiangdong, et al. (författare)
  • Cancer risk in patients with type 2 diabetes mellitus and their relatives.
  • 2015
  • Ingår i: International Journal of Cancer. - : Wiley. - 0020-7136. ; 137:4, s. 903-910
  • Tidskriftsartikel (refereegranskat)abstract
    • Epidemiological studies indicate that risks of certain cancers are increased in individuals hospitalized for type 2 diabetes mellitus (T2DM), which may not be representative of the entire population of T2DM patients as most of them are treated in primary health cares. To examine the subsequent cancer risk in individuals with T2DM from hospitals and primary health cares, and in their siblings and spouses, standardized incidence ratios (SIRs) were used to assess systematically risks of 35 cancer sites/types in individuals with T2DM using a nationwide Swedish database covering the period 1964 through 2010. Increased SIRs were recorded for 24 cancer sites/types in individuals with T2DM. The highest SIRs were for pancreatic cancer and liver cancer (2.98 and 2.43, respectively). A decreased SIR was noted for prostate cancer. Five cancers showed increased SIRs during the whole follow-up period: colon, liver, pancreatic, endometrial, and kidney cancers. T2DM patients in inpatient, outpatient and primary health care showed similar risk patterns. The overall SIRs for cancer in the siblings and spouses of individuals with T2DM were 0.97 and 1.01, respectively. The insulin users showed an overall increased risk of cancer. This study showed increased risks of 24 cancers in individuals with T2DM, but not in their siblings or spouses, suggesting that the profound metabolic disturbances of the underlying disease may explain the observed increases. Further studies examining the endogenous and exogenous factors underlying these associations are needed. This article is protected by copyright. All rights reserved.
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10.
  • Narod, S A, et al. (författare)
  • The risk of contralateral breast cancer in daughters of women with and without breast cancer.
  • 2015
  • Ingår i: Clinical Genetics. - : Wiley. - 0009-9163.
  • Tidskriftsartikel (refereegranskat)abstract
    • We aimed to estimate the 15-year and lifetime risks of contralateral breast cancer in breast cancer patients according to the age of diagnosis of the first cancer and the history of breast cancer in the mother. The risks of contralateral breast cancer were estimated for all 78,775 breast cancer patients in the Swedish Family-Cancer Database (age at diagnosis of first breast cancer <70 years). The risk of experiencing a contralateral breast cancer within 15 years of diagnosis was 8.4% [95% confidence interval (CI): 8.1-8.7%] for women with an unaffected mother, was 12% (95%CI: 11-13%) for a woman with a mother with unilateral breast cancer and was 13% (95%CI: 9.5-17%) for women with a mother with bilateral breast cancer. In early-onset diagnosed women (<50 years) with an unaffected mother, the risk of contralateral breast cancer until age 80 was 23% (95%CI: 20-26%) and for late-onset (50-69 years) diagnosed women it was 17% (95%CI: 14-21%). In a woman with a mother with an early-onset unilateral breast cancer, risk of contralateral breast cancer by age 80 was 35% (95%CI: 25-46%). Women with a mother with early-onset bilateral breast cancer had 31% (95%CI: 12-67%) lifetime risk of contralateral breast cancer. The risk of contralateral breast cancer is higher for daughters of breast cancer patients than for daughters of women without breast cancer. Maternal cancer history and age at onset of first breast cancer in women should be taken into account when counseling breast cancer patients about their risk of contralateral breast cancer.
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