Search Results - "Krishnan Bhaskaran"

What is the difference between missing completely at random and missing at random? by BHASKARAN, Krishnan, SMEETH, Liam

“…The terminology describing missingness mechanisms is confusing. In particular the meaning of 'missing at random' is often misunderstood, leading researchers…”
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Body-mass index and risk of 22 specific cancers: a population-based cohort study of 5·24 million UK adults by Bhaskaran, Krishnan, Dr, Douglas, Ian, PhD, Forbes, Harriet, MSc, dos-Santos-Silva, Isabel, Prof, Leon, David A, Prof, Smeeth, Liam, Prof

“…Summary Background High body-mass index (BMI) predisposes to several site-specific cancers, but a large-scale systematic and detailed characterisation of…”
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Associations Between Breast Cancer Survivorship and Adverse Mental Health Outcomes: A Systematic Review by Carreira, Helena, Williams, Rachael, Müller, Martin, Harewood, Rhea, Stanway, Susannah, Bhaskaran, Krishnan

“…We aimed to systematically review the evidence on adverse mental health outcomes in breast cancer survivors (≥1 year) compared with women with no history of…”
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Promises and pitfalls of electronic health record analysis by Farmer, Ruth, Mathur, Rohini, Bhaskaran, Krishnan, Eastwood, Sophie V., Chaturvedi, Nish, Smeeth, Liam

“…Routinely collected electronic health records (EHRs) are increasingly used for research. With their use comes the opportunity for large-scale, high-quality…”
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Long term adjuvant endocrine therapy and risk of cardiovascular disease in female breast cancer survivors: systematic review by Matthews, Anthony, Stanway, Susannah, Farmer, Ruth E, Strongman, Helen, Thomas, Sara, Lyon, Alexander R, Smeeth, Liam, Bhaskaran, Krishnan

“…AbstractObjectiveTo investigate the effect of endocrine therapies on a wide range of specific clinical cardiovascular disease outcomes in women with a history…”
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Medium and long-term risks of specific cardiovascular diseases in survivors of 20 adult cancers: a population-based cohort study using multiple linked UK electronic health records databases by Strongman, Helen, Gadd, Sarah, Matthews, Anthony, Mansfield, Kathryn E, Stanway, Susannah, Lyon, Alexander R, dos-Santos-Silva, Isabel, Smeeth, Liam, Bhaskaran, Krishnan

“…The past few decades have seen substantial improvements in cancer survival, but concerns exist about long-term cardiovascular disease risk in survivors…”
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Short-term effects of air pollution on a range of cardiovascular events in England and Wales: case-crossover analysis of the MINAP database, hospital admissions and mortality by Milojevic, Ai, Wilkinson, Paul, Armstrong, Ben, Bhaskaran, Krishnan, Smeeth, Liam, Hajat, Shakoor

“…To inform potential pathophysiological mechanisms of air pollution effects on cardiovascular disease (CVD), we investigated short-term associations between…”
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Associations between breast cancer survivorship and adverse mental health outcomes: A matched population-based cohort study in the United Kingdom by Carreira, Helena, Williams, Rachael, Funston, Garth, Stanway, Susannah, Bhaskaran, Krishnan

“…Breast cancer is the most common cancer diagnosed in women globally, and 5-year net survival probabilities in high-income countries are generally >80%. A…”
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Quality of life and mental health in breast cancer survivors compared with non-cancer controls: a study of patient-reported outcomes in the United Kingdom by Carreira, Helena, Williams, Rachael, Dempsey, Harley, Stanway, Susannah, Smeeth, Liam, Bhaskaran, Krishnan

“…Purpose There is limited high-quality evidence on quality of life, anxiety, and depressive symptoms in breast cancer survivors and women with no history of…”
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Ethnic differences in SARS-CoV-2 infection and COVID-19-related hospitalisation, intensive care unit admission, and death in 17 million adults in England: an observational cohort study using the OpenSAFELY platform by Mathur, Rohini, Rentsch, Christopher T, Morton, Caroline E, Hulme, William J, Schultze, Anna, MacKenna, Brian, Eggo, Rosalind M, Bhaskaran, Krishnan, Wong, Angel Y S, Williamson, Elizabeth J, Forbes, Harriet, Wing, Kevin, McDonald, Helen I, Bates, Chris, Bacon, Seb, Walker, Alex J, Evans, David, Inglesby, Peter, Mehrkar, Amir, Curtis, Helen J, DeVito, Nicholas J, Croker, Richard, Drysdale, Henry, Cockburn, Jonathan, Parry, John, Hester, Frank, Harper, Sam, Douglas, Ian J, Tomlinson, Laurie, Evans, Stephen J W, Grieve, Richard, Harrison, David, Rowan, Kathy, Khunti, Kamlesh, Chaturvedi, Nishi, Smeeth, Liam, Goldacre, Ben

“…COVID-19 has disproportionately affected minority ethnic populations in the UK. Our aim was to quantify ethnic differences in SARS-CoV-2 infection and COVID-19…”
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Long COVID burden and risk factors in 10 UK longitudinal studies and electronic health records by Thompson, Ellen J., Williams, Dylan M., Walker, Alex J., Mitchell, Ruth E., Niedzwiedz, Claire L., Yang, Tiffany C., Huggins, Charlotte F., Kwong, Alex S. F., Silverwood, Richard J., Di Gessa, Giorgio, Bowyer, Ruth C. E., Northstone, Kate, Hou, Bo, Green, Michael J., Dodgeon, Brian, Doores, Katie J., Duncan, Emma L., Williams, Frances M. K., Steptoe, Andrew, Porteous, David J., McEachan, Rosemary R. C., Tomlinson, Laurie, Goldacre, Ben, Patalay, Praveetha, Ploubidis, George B., Katikireddi, Srinivasa Vittal, Tilling, Kate, Rentsch, Christopher T., Timpson, Nicholas J., Chaturvedi, Nishi, Steves, Claire J.

“…The frequency of, and risk factors for, long COVID are unclear among community-based individuals with a history of COVID-19. To elucidate the burden and…”
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Body mass index and Hodgkin's lymphoma: UK population-based cohort study of 5.8 million individuals by Strongman, Helen, Brown, Adam, Smeeth, Liam, Bhaskaran, Krishnan

“…Previous epidemiological studies describe a positive association between body mass index (BMI) and Hodgkin’s lymphoma, mainly in obese vs. normal weight…”
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Immortal time bias for life-long conditions in retrospective observational studies using electronic health records by Tyrer, Freya, Bhaskaran, Krishnan, Rutherford, Mark J

“…Immortal time bias is common in observational studies but is typically described for pharmacoepidemiology studies where there is a delay between cohort entry…”
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Population trends in the 10-year incidence and prevalence of diabetic retinopathy in the UK: a cohort study in the Clinical Practice Research Datalink 2004–2014 by Mathur, Rohini, Bhaskaran, Krishnan, Edwards, Emma, Lee, Helen, Chaturvedi, Nishi, Smeeth, Liam, Douglas, Ian

“…ObjectivesTo describe trends in the incidence and prevalence of diabetic retinopathy (DR) in the UK by diabetes type, age, sex, ethnicity, deprivation, region…”
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Common Bacterial Infections and Risk of Dementia or Cognitive Decline: A Systematic Review by Muzambi, Rutendo, Bhaskaran, Krishnan, Brayne, Carol, Davidson, Jennifer A, Smeeth, Liam, Warren-Gash, Charlotte

“…Bacterial infections may be associated with dementia, but the temporality of any relationship remains unclear. To summarize existing literature on the…”
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A systematic review and meta-analysis of risk factors for postherpetic neuralgia by Forbes, Harriet J., Thomas, Sara L., Smeeth, Liam, Clayton, Tim, Farmer, Ruth, Bhaskaran, Krishnan, Langan, Sinéad M.

“…Patients with herpes zoster can develop persistent pain after rash healing, a complication known as postherpetic neuralgia. By preventing zoster through…”
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Eligibility and subsequent burden of cardiovascular disease of four strategies for blood pressure-lowering treatment: a retrospective cohort study by Herrett, Emily, Gadd, Sarah, Jackson, Rod, Bhaskaran, Krishnan, Williamson, Elizabeth, van Staa, Tjeerd, Sofat, Reecha, Timmis, Adam, Smeeth, Liam

“…Worldwide treatment recommendations for lowering blood pressure continue to be guided predominantly by blood pressure thresholds, despite strong evidence that…”
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Identification of mental health and quality of life outcomes in primary care databases in the UK: a systematic review by Carreira, Helena, Williams, Rachael, Strongman, Helen, Bhaskaran, Krishnan

“…ObjectivesTo summarise the definitions and combinations of codes used to identify outcomes of anxiety, depression, fatigue, cognitive dysfunction (including…”
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Bariatric Surgery in the United Kingdom: A Cohort Study of Weight Loss and Clinical Outcomes in Routine Clinical Care by Douglas, Ian J, Bhaskaran, Krishnan, Batterham, Rachel L, Smeeth, Liam

“…Bariatric surgery is becoming a more widespread treatment for obesity. Comprehensive evidence of the long-term effects of contemporary surgery on a broad range…”
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What are the implications of using individual and combined sources of routinely collected data to identify and characterise incident site-specific cancers? a concordance and validation study using linked English electronic health records data by Strongman, Helen, Williams, Rachael, Bhaskaran, Krishnan

“…ObjectivesTo describe the benefits and limitations of using individual and combinations of linked English electronic health data to identify incident…”
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