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        <r:String xml:lang="sv">Fall-kontrollstudie av mjukdelssarkom</r:String>
        <r:String xml:lang="en">Case control study for soft tissue sarcoma</r:String>
      </r:Title>
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          <r:String xml:lang="sv">Lunds universitet</r:String>
          <r:String xml:lang="en">Lund University</r:String>
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          <r:String xml:lang="sv">Lunds universitet</r:String>
          <r:String xml:lang="en">Lund University</r:String>
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        <r:SimpleDate>2014-12-11</r:SimpleDate>
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    <r:Abstract>
      <r:Content xml:lang="sv">Etiologin för mjukdelssarkom är till största delen okänd. Till denna studie som startade 1988, och som fortfarande pågår, har det samlats in information från patienter med mjukdelssarkom med tillhörande kontroller. Alla patienter från 15 år som diagnostiserats med mjukdelssarkom (exklusive dem med tumörer i livmodern) i södra Sverige har identifierats från södra Sveriges regionala tumörregister. Fram till 2009 var det 1261 individer som kontaktades och blev tillfrågade om de kunde svara på ett frågeformulär. Frågeformuläret innehöll frågor som rör tidigare sjukdomar och medicinering, tidigare strålningsterapi, yrke, längd, vikt, fortplantning, använding av p-piller och annan exponering för hormonella substanser. Två kontroller per fall valdes slumpmässigt ut från populationsregistret med matchningskriterierna kön, ålder och hemort. Av de 1261 fall som identifierats svarade 967 (77%) på frågeformuläret. Efter exkludering av några individer pga. av missklassificering återstod 855 fall samt 2021 kontroller. På grund av brist på tillgängliga kontroller för 221 fall gav detta 634 matchade grupper. Bland dessa ingår det endast en kontroll för 17 (2.7%) av fallen. Följaktligen består fall-kontrollserien av 634 fall och 1251 kontroller. Detta är troligtvis den största fall-kontrollstudien för mjukdelssarkom och storleken tillåter studier av subgrupper.

Syfte:

Att studera riskfaktorer för mjukdelssarkom

Insamlingen är pågående. År 2009 innefattade studien 634 fall.</r:Content>
      <r:Content xml:lang="en">The etiology of soft tissue sarcomas is largely unknown. For this study, which started in 1988 and still is in progress, information has been collected from individuals with soft tissue sarcomas and also from healthy controls. All patients, 15 years of age and older, diagnosed with soft tissue sarcoma (excluding those with tumors of the uterus) in southern Sweden have been identified from Southern Swedish regional tumor registry. Until 2009 there were 1261 individuals who were contacted and asked if they could answer a questionnaire. The questionnaire contained questions relating to past illnesses and medication, previous radiation therapy, occupation, height, weight, reproduction, use of oral contraceptives and other exposure to hormonal substances. Two controls per case were randomly selected from the population registry with matching criterias gender, age and place of residence. Of the 1261 identified cases, 967 (77%) responded to the questionnaire. After exclusion of some individuals due to misclassification 855 cases and 2021 controls remained. Due to the lack of available controls for 221 cases this resulted in 634 matched groups. Among these 17 (2.7%) included only one control. Consequently, the case-control series contained 634 cases and 1251 controls. This study is probably the largest soft tissue sarcoma case control study ever designed allowing risk factor studies of more seldom subtypes.

Purpose:

To study risk factors for soft tissue sarcoma

Data collection is ongoing. In 2009, the study consisted of 634 cases.</r:Content>
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