Publications by authors named "Katrina Lavelle"

Purpose: Second primary cancer (SPC) risks after breast cancer (BC) in pathogenic variant (PV) carriers are uncertain. We estimated relative and absolute risks using a novel linkage of genetic testing data to population-scale National Disease Registration Service and Hospital Episode Statistics electronic health records.

Methods: We followed 25,811 females and 480 males diagnosed with BC and tested for germline PVs in NHS Clinical Genetics centers in England between 1995 and 2019 until SPC diagnosis, death, migration, contralateral breast/ovarian surgery plus 1 year, or the 31st of December 2020.

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Background: Second primary cancers (SPCs) after breast cancer (BC) present an increasing public health burden, with little existing research on socio-demographic, tumour, and treatment effects. We addressed this in the largest BC survivor cohort to date, using a novel linkage of National Disease Registration Service datasets.

Methods: The cohort included 581,403 female and 3562 male BC survivors diagnosed between 1995 and 2019.

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Background: Sebaceous carcinomas (SC) may be associated with the cancer predisposition syndrome Muir-Torre/Lynch syndrome (MTS/LS), identifiable by SC mismatch repair (MMR) screening; however, there is limited data on MMR status of SC.

Objective: To describe the epidemiology of SC, copresentation of other cancers, and population level frequency of MMR screening in SC.

Methods: A population-based retrospective cohort study of SC patients in the National Cancer Registration and Analysis Service in England.

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A complete understanding of how exposure to environmental substances promotes cancer formation is lacking. More than 70 years ago, tumorigenesis was proposed to occur in a two-step process: an initiating step that induces mutations in healthy cells, followed by a promoter step that triggers cancer development. Here we propose that environmental particulate matter measuring ≤2.

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Objective: Surgery is the mainstay of treatment for breast cancer. However, there is evidence that older women are not receiving this treatment. This study explores reasons why older women are not having surgery.

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Evidence suggests that physical activity improves quality of life and physical functioning among breast cancer patients and survivors. However, previous studies have tended to focus on younger patients, despite higher incidence and lower survival among older breast cancer survivors. In this study we explored physical activity preferences of older breast cancer survivors to inform the development of future targeted interventions.

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Background: Studies largely from the market research field suggest that the inclusion of a stamped addressed envelope, rather than a pre-paid business reply, increases the response rate to mail surveys. The evidence that this is also the case regarding patient mail surveys is limited.

Methods: The aim of this study is to investigate whether stamped addressed envelopes increase response rates to patient mail surveys compared to pre-paid business reply envelopes and compare the relative costs.

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