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- Amelio, Justyna M., et al.
(författare)
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Population-based study of giant cell tumor of bone in Sweden (1983-2011)
- 2016
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Ingår i: Cancer Epidemiology. - : Elsevier BV. - 1877-7821 .- 1877-783X. ; 42, s. 82-89
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Tidskriftsartikel (refereegranskat)abstract
- Introduction: Giant-cell tumor of bone (GCTB) is a locally aggressive histologically benign neoplasm with a less common malignant counterpart. Longitudinal data sources on GCTB are sparse, limited to single institution case series or surgical outcomes studies. The Swedish Cancer Registry is one of the few national population-based databases recording GCTB, representing a unique source to study GCTB epidemiology. We estimated incidence rate (IR) and overall mortality rates based on registry data. Materials and methods: We identified patients with a GCTB diagnosis in the Swedish Cancer Registry from 1983 to 2011: benign (ICD-7 196.0-196.9; PAD 741) and malignant (PAD 746). Results were stratified by age at diagnosis, gender, and anatomical lesion location. Results: The cohort included 337 GCTB cases (IR of 1.3 per million persons per year). The majority (n = 310) had primary benign GCTB (IR of 1.2 per million per year). Median age at diagnosis was 34 years (range 10-88) with 54% (n = 183) females. Malignant to benign ratio for women was 0.095 (16/167) and for men 0.077 (11/143). Incidence was highest in the 20-39 years age group (IR of 2.1 per million per year). The most common lesion sites were distal femur and proximal tibia. Mortality at 20 years from diagnosis was 14% (n = 48) and was slightly higher for axial (17%; n = 6) and pelvic (17%; n = 4) lesions. Recurrence occurred in 39% of primary benign cases and 75% of primary malignant cases. Conclusions: In our modern population-based series primary malignant cases were uncommon (8%), peak incidence 20-39 years with slight predominance in women. Recurrence rates remain significant with overall 39% occurring in benign GCTB, and 75% in malignant form. The linkage between databases allowed the first population based estimates of the proportion of patients who received surgery at initial GCTB diagnosis, and those who also received subsequent surgeries.
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- Andersson, Eva M., 1968, et al.
(författare)
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Incidence of cutaneous squamous cell carcinoma in coastal and inland areas of Western Sweden.
- 2011
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Ingår i: Cancer epidemiology. - : Elsevier BV. - 1877-783X .- 1877-7821. ; 35:6
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Tidskriftsartikel (refereegranskat)abstract
- The incidence of squamous cell carcinoma (SCC) has increased in recent decades, both in Sweden and worldwide. The aim of this study was to investigate the development of SCC over time (1970-2007) in the western part of Sweden (WS), with emphasis on the incidence trends on the coast and in the inland areas.
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- Andersson, Therese M. -L., et al.
(författare)
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Estimating the cure proportion of malignant melanoma, an alternative approach to assess long term survival : A population-based study
- 2014
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Ingår i: Cancer Epidemiology. - : Elsevier BV. - 1877-7821 .- 1877-783X. ; 38:1, s. 93-99
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: A large proportion of patients with cutaneous malignant melanoma (CMM) do not experience excess mortality due to their disease. This group of patients is referred to as the cure proportion. Few studies have examined the possibility of cure for CMM. The aim of this study was to estimate the cure proportion of patients with CMM in a Swedish population. Methods: We undertook a population-based study of 5850 CMM patients in two Swedish health care regions during 1996-2005. We used flexible parametric cure models to estimate cure proportions and median survival times (MSTs) of uncured by stage, sex, age and anatomical site. Results: Disease stage at diagnosis was the most important factor for the probability of cure, with a cure proportion of approximately 1.0 for stage IA. While the probability of cure decreased with older age, the influence of age was smaller on the MST of uncured. Differences in prognosis between males and females were mainly attributed to differences in cure as opposed to differences in MST of uncured. Conclusions: This population-based study showed approximately 100% cure among stage IA disease. Almost 50% of patients had stage IA disease and the high cure proportion for this large patient group is reassuring.
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