Gayan Surendrajith Perera

All papers authored by Gayan Surendrajith Perera

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2023 Oleg O. Glebov

, Christoph Mueller

, Robert Stewart

, Dag Aarsland

, Gayan Perera

Antidepressant drug prescription and incidence of COVID-19 in mental health outpatients: a retrospective cohort study

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This paper was not found in any repository, but could be made available legally by the author.

2022 Lauren Simkin, Paul Yung, Flora Greig, Gayan Perera

, Konstantinos Tsamakis, Emmanouil Rizos, Robert Stewart

, Latha Velayudhan

, Christoph Mueller

The impact of the first UK COVID‐19 lockdown on presentations with psychosis to mental health services for older adults: An electronic health records study in South London

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This paper was not found in any repository; the policy of its publisher is unknown or unclear.

Benson Kung

, Maurice Chiang

, Gayan Perera

, Megan Pritchard

, Robert Stewart

Unsupervised Machine Learning to Identify Depressive Subtypes

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Christoph Mueller

, Gayan Perera

, Matthew Broadbent, Robert Stewart, Latha Velayudhan

A retrospective analysis of patient flow in mental health services for older adults in South London during the COVID-19 pandemic

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2021 Delia Bishara

, Gayan Perera

, Daniel Harwood, David Taylor

, Justin Sauer, Nicola Funnell, Robert Stewart, Christoph Mueller

Centrally Acting Anticholinergic Drugs Used for Urinary Conditions Associated with Worse Outcomes in Dementia

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Flora Greig, Gayan Perera

, Konstantinos Tsamakis, Robert Stewart

, Latha Velayudhan

, Christoph Mueller

Loneliness in older adult mental health services during the COVID‐19 pandemic and before: Associations with disability, functioning and pharmacotherapy

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Andrew Sommerlad

, Nomi Werbeloff, Gayan Perera

, Tanya Smith, Harry Costello, Christoph Mueller

, Andrey Kormilitzin, Matthew Broadbent, Alejo Nevado‐Holgado, Simon Lovestone, Robert Stewart

, Gill Livingston

Effect of trazodone on cognitive decline in people with dementia: Cohort study using UK routinely collected data

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Eugenia Romano, Ruimin Ma, Gayan Perera

, Robert Stewart, Konstantinos Tsamakis, Marco Solmi, Davy Vancampfort, Joseph Firth, Brendon Stubbs, Christoph Mueller

Risk of hospitalised falls and hip fractures in working age adults receiving mental health care

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Marvey Ghani, Sajini Kuruppu, Megan Pritchard, Matthew Harris, Ruwan Weerakkody, Robert Stewart, Gayan Perera

Vascular surgery receipt and outcomes for people with serious mental illnesses: Retrospective cohort study using a large mental healthcare database in South London

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Delia Bishara, Gayan Perera

, Daniel Harwood, David Taylor

, Justin Sauer, Nicola Funnell, Siobhan Gee

, Robert Stewart

, Christoph Mueller

Centrally-acting anticholinergic drugs– associations with mortality, hospitalisation and cognitive decline following dementia diagnosis in people receiving antidepressant and antipsychotic drugs

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Elyse Couch, Christoph Mueller, Gayan Perera

, Vanessa Lawrence, Matthew Prina

The association between an early diagnosis of dementia and secondary health service use

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Mayur Parmar, Ruimin Ma, Sumudu Attygalle, Christoph Mueller, Brendon Stubbs, Robert Stewart, Gayan Perera

Associations between loneliness and acute hospitalisation outcomes among patients receiving mental healthcare in South London: a retrospective cohort study

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Katrina A. S. Davis

, Delia Bishara

, Mariam Molokhia

, Christoph Mueller

, Gayan Perera

, Robert J. Stewart

Aspirin in people with dementia, long-term benefits, and harms: a systematic review

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Sajini Kuruppu, Marvey Ghani, Megan Pritchard

, Matthew Harris

, Ruwan Weerakkody, Robert Stewart

, Gayan Perera

A prospective investigation of depression and adverse outcomes in patients undergoing vascular surgical interventions: A retrospective cohort study using a large mental health database in South London

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Ahmed M. Al-Harrasi, Ehtesham Iqbal, Konstantinos Tsamakis, Judista Lasek, Romayne Gadelrab, Pinar Soysal, Enno Kohlhoff, Dimitrios Tsiptsios

, Emmanouil Rizos, Gayan Perera

, Dag Aarsland

, Robert Stewart, Christoph Mueller

Motor signs in Alzheimer's disease and vascular dementia: Detection through natural language processing, co-morbid features and relationship to adverse outcomes

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2020 Elyse Couch, Christoph Mueller, Gayan Perera

, Vanessa Lawrence, Matthew Prina

The Association Between a Previous Diagnosis of Mild Cognitive Impairment as a Proxy for an Early Diagnosis of Dementia and Mortality: A Study of Secondary Care Electronic Health Records

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Andrew Sommerlad, Nomi Werbeloff, Gayan Surendrajith Perera

, Tanya Smith, Harry Costello, Christoph Mueller, Andrey Kormilitzin, Matthew Broadbent, Alejo J. Nevado‐Holgado, Simon Lovestone, Robert James Stewart, Gill Livingston, Gill Livingstone

Effect of trazodone on cognitive function in people with dementia: Cohort study using UK routinely collected data

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Gayan Perera

, P. R. Rijnbeek, Myriam Alexander, David Ansell, Paul Avillach, Talita Duarte-Salles

, Mark Forrest Gordon, Francesco Lapi, Miguel Angel Mayer, Alessandro Pasqua, Lars Pedersen, Johan van Der Lei, Pieter Jelle Visser, Robert Stewart

Vascular and metabolic risk factor differences prior to dementia diagnosis: a multidatabase case–control study using European electronic health records

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Gayan Perera

, Christoph Mueller

, Robert Stewart

Factors associated with slow progression of cognitive impairment following first dementia diagnosis

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Konstantinos Tsamakis

, Romayne Gadelrab, Mimi Wilson

, Anne M. Bonnici-Mallia, Labib Hussain, Gayan Perera

, Emmanouil Rizos, Jayati Das-Munshi

, Robert Stewart

, Christoph Mueller

Dementia in People from Ethnic Minority Backgrounds: Disability, Functioning, and Pharmacotherapy at the Time of Diagnosis

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All papers authored by Gayan Surendrajith Perera