Kitty S. Chan

ORCID: 0000-0003-2639-4186
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About
Contact & Profiles
Research Areas
  • Healthcare Policy and Management
  • Health disparities and outcomes
  • Intensive Care Unit Cognitive Disorders
  • Primary Care and Health Outcomes
  • Health Systems, Economic Evaluations, Quality of Life
  • Geriatric Care and Nursing Homes
  • Cancer Genomics and Diagnostics
  • Frailty in Older Adults
  • HIV/AIDS Research and Interventions
  • Family and Patient Care in Intensive Care Units
  • Homelessness and Social Issues
  • Childhood Cancer Survivors' Quality of Life
  • Sarcoma Diagnosis and Treatment
  • Healthcare cost, quality, practices
  • Respiratory Support and Mechanisms
  • Child and Adolescent Psychosocial and Emotional Development
  • Emergency and Acute Care Studies
  • Patient Satisfaction in Healthcare
  • Electronic Health Records Systems
  • HIV, Drug Use, Sexual Risk
  • Nutrition and Health in Aging
  • Lung Cancer Treatments and Mutations
  • Musculoskeletal pain and rehabilitation
  • Clinical practice guidelines implementation
  • Health Policy Implementation Science

Kwai Chung Hospital
2024-2025

University College London
2021-2024

Cancer Research UK
2021-2024

London Cancer
2023

MedStar Health
2018-2023

University of Alberta
2022-2023

Werner-Wicker-Klinik
2023

Jones College
2023

Greyston
2023

Princess Margaret Cancer Centre
2023

Kevin W. Ng Jesse Boumelha Katey S.S. Enfield Jorge Almagro Hongui Cha and 95 more Oriol Pich Takahiro Karasaki David A. Moore Roberto Salgado Monica Sivakumar George R. Young Mı́riam Molina-Arcas Sophie de Carné Trécesson Panayiotis Anastasiou Annika Fendler Lewis Au Scott T.C. Shepherd Carlos Martínez‐Ruiz Clare Puttick James R. Black Thomas B.K. Watkins Hye Min Kim Seohee Shim Nikhil Faulkner Jan Attig Selvaraju Veeriah Neil Magno Sophia Ward Alexander M. Frankell Maise Al Bakir Emilia L. Lim Mark S. Hill Gareth A. Wilson Daniel E. Cook Nicolai J. Birkbak Axel Behrens Nadia Yousaf Sanjay Popat Allan Hackshaw Andrew Rowan Ariana Huebner Brittany Campbell Chris Bailey Claudia Lee Dhruva Biswas Emma Colliver Foteini Athanasopoulou Hao-Ran Zhai Jayant K. Rane Kristiana Grigoriadis Michelle Dietzen Michelle Leung Mihaela Angelova Olivia Lucas Othman Al‐Sawaf Rachel Rosenthal Jérôme Nicod Abigail Bunkum Antonia Toncheva Christopher Abbosh Corentin Richard Cristina Naceur‐Lombardelli Francisco Gimeno-Valiente Jie Min Lam Kerstin Thol Krupa Thakkar Mariana Werner Sunderland Martin Förster Nnennaya Kanu Paulina Prymas Robert B. Bentham Sadegh Saghafinia Sergio A. Quezada Sharon Vanloo Simone Zaccaria SM Lee Sonya Hessey Wing Kin Liu Dionysis Papadatos-Pastos James M. Wilson Sarah Benafif Tanya Ahmad Elaine Borg Mary Falzon Reena Khiroya Teresa Marafioti Abigail Sharp Camilla Pilotti Harjot Kaur Dhanda Kitty S. Chan Nicole Gower Rachel Leslie Sean Smith Andrew G. Nicholson Eric Lim Javier Herrero Carla Castignani Elizabeth Larose Cadieux Jonas Demeulemeester Peter Van Loo

Abstract B cells are frequently found in the margins of solid tumours as organized follicles ectopic lymphoid organs called tertiary structures (TLS) 1,2 . Although TLS have been to correlate with improved patient survival and response immune checkpoint blockade (ICB), underlying mechanisms this association remain elusive Here we investigate lung-resident cell responses patients from TRACERx 421 (Tracking Non-Small-Cell Lung Cancer Evolution Through Therapy) other lung cancer cohorts, a...

10.1038/s41586-023-05771-9 article EN cc-by Nature 2023-04-12
Yin Wu Dhruva Biswas Ieva Usaite Mihaela Angelova Stefan Boeing and 95 more Takahiro Karasaki Selvaraju Veeriah Justyna Czyzewska-Khan Cienne Morton Magdalene Joseph Sonya Hessey James L. Reading Andrew Georgiou Maise Al-Bakir Nicolai J. Birkbak Gillian Price Mohammed S. Khalil Keith M. Kerr Shirley Richardson Heather Cheyne Tracey Cruickshank Gareth A. Wilson Rachel Rosenthal Hugo J.W.L. Aerts Madeleine Hewish Girija Anand Sajid Khan Kelvin Lau Michael Sheaff Peter Schmid Louise Lim John Conibear Roland F. Schwarz Tom L. Kaufmann Matthew R. Huska Jacqui Shaw Joan Riley Lindsay Primrose Dean A. Fennell Allan Hackshaw Yenting Ngai Abigail Sharp Oliver Pressey Sean Smith Nicole Gower Harjot Kaur Dhanda Kitty S. Chan Sonal Chakraborty Kevin Litchfield Krupa Thakkar Jonathan Tugwood Alexandra Clipson Caroline Dive Dominic G. Rothwell Alastair Kerr Elaine Kilgour Fiona J. E. Morgan Malgorzata Kornaszewska Richard Attanoos Helen Davies Katie Baker Mathew Carter Colin R. Lindsay Fábio Gomes Fiona Blackhall Lynsey Priest Matthew Krebs Anshuman Chaturvedi Pedro Oliveira Zoltán Szállási Gary Royle Catarina Veiga Marcin Skrzypski Roberto Salgado Miklós Dióssy Alan Kirk Mo Asif John Butler Rocco Bilancia Nikos Kostoulas Mathew Thomas Mairead MacKenzie Maggie Wilcox Apostolos Nakas Sridhar Rathinam Rebecca Boyles Mohamad Tufail Amrita Bajaj Keng Ang Mohammed Fiyaz Chowdhry Michael Shackcloth Julius Asante-Siaw Angela Leek Nicola Totten Jack Davies Hodgkinson Peter Van Loo William Monteiro Hilary Marshal Kevin G. Blyth Craig Dick

Abstract Murine tissues harbor signature γδ T cell compartments with profound yet differential impacts on carcinogenesis. Conversely, human tissue-resident cells are less well defined. In the present study, we show that lung a resident Vδ1 population. Moreover, demonstrate memory and effector phenotypes were enriched in tumors compared nontumor tissues. Intratumoral possessed stem-like features skewed toward cytolysis helper type 1 function, akin to intratumoral natural killer CD8 +...

10.1038/s43018-022-00376-z article EN cc-by Nature Cancer 2022-05-30

Objective: We sought to assess the reliability and validity of PedsQL™ 4.0 SF15, a shortened version 23-item Generic Core Scales, which is pediatric health-related quality life (HRQoL) instrument, 3.0 SF22 Asthma Module, short-form Module. Methods: The SF15 Module were administered by telephone 125 adolescents (aged 12–18) 338 parents children with asthma 2–11). Healthy (n = 451) chronically ill 422) children, matched age, respondent status, ethnicity sample, provided data for selected...

10.1097/00005650-200503000-00008 article EN Medical Care 2005-02-21

Using data from the 2006 Medical Expenditure Panel Survey and 2000 Census, authors explored whether race/ethnic disparities in health care use were associated with residential segregation. They used five measures of use: office-based physician visits, outpatient department visits to nurses physician’s assistants, other professionals, having a usual source care. For each individual, controlled for age, gender, marital status, insurance income, educational attainment, employment region,...

10.1177/1077558711420263 article EN Medical Care Research and Review 2011-10-04

Objective To examine the association between residential segregation and geographic access to primary care physicians ( PCPs ) in metropolitan statistical areas MSAs ). Data Sources We combined zip code level data on from 2006 American Medical Association master file with demographic, socioeconomic, measures 2000 U.S. Census. Our sample consisted of 15,465 codes located completely or partially an MSA . Methods defined PCP shortage as those no a population ratio >3,500. Using logistic...

10.1111/j.1475-6773.2012.01417.x article EN Health Services Research 2012-04-23

Abstract Background The lack of common language among interprofessional inpatient clinical teams is an important barrier to achieving mobilization. In Johns Hopkins Hospital, the Activity Measure for Post-Acute Care (AM-PAC) Inpatient Mobility Short Form (IMSF), also called “6-Clicks,” and Highest Level (JH-HLM) are part routine practice. measurement characteristics these tools when used by both nurses physical therapists communication or assessment unknown. Objective purposes this study...

10.1093/ptj/pzx110 article EN Physical Therapy 2017-11-02

Objective Functional status decline commonly accompanies hospitalization making patients vulnerable to complications. Such can be mitigated through hospital-based early mobility programs. Success in implementing patient quality improvement processes requires evaluating providers’ knowledge, attitudes, and behaviors. Design A cross-sectional, self-administered survey two different hospital settings was completed by 120 nurses physical occupational therapists (rehabilitation therapists, 38;...

10.1097/phm.0000000000000185 article EN American Journal of Physical Medicine & Rehabilitation 2014-08-16

To evaluate the internal consistency, validity, responsiveness, and minimal important difference of Functional Status Score for ICU, a physical function measure designed ICU.Clinimetric analysis.Five international datasets from United States, Australia, Brazil.Eight hundred nineteen ICU patients.None.Clinimetric analyses were initially conducted separately each data source time point to examine generalizability findings, with pooled performed thereafter increase power analyses. The...

10.1097/ccm.0000000000001949 article EN Critical Care Medicine 2016-08-09
Xiaoxi Pan Khalid AbdulJabbar Jose Coelho‐Lima Anca-Ioana Grapa Hanyun Zhang and 95 more Alvin Ho‐Kwan Cheung Juvenal Baena Takahiro Karasaki Claire Wilson Marco Sereno Selvaraju Veeriah Sarah J. Aitken Allan Hackshaw Andrew G. Nicholson Mariam Jamal‐Hanjani John Le Quesne Sam M. Janes Anne-Marie Hacker Abigail Sharp Sean Smith Harjot Kaur Dhanda Kitty S. Chan Camilla Pilotti Rachel Leslie David Chuter Mairead MacKenzie Serena Chee Aiman Alzetani Eric Lim Paulo De Sousa Simon Jordan Alexandra Rice Hilgardt Raubenheimer Harshil Bhayani Lyn Ambrose Anand Devaraj Hema Chavan Sofina Begum Silviu Buderi Daniel Kaniu Mpho Malima Sarah Booth Nadia Fernandes Pratibha Shah Chiara Proli Madeleine Hewish Sarah Danson Michael Shackcloth Lily Robinson Peter Russell Kevin G. Blyth Andrew Kidd Alan Kirk Mo Asif Rocco Bilancia Nikos Kostoulas Mathew Thomas Craig Dick J.F. Lester Amrita Bajaj Apostolos Nakas Azmina Sodha-Ramdeen Mohamad Tufail Molly Scotland Rebecca Boyles Sridhar Rathinam Dean A. Fennell Claire Wilson Domenic Marrone Sean Dulloo Gurdeep Matharu Jacqui Shaw Joan Riley Lindsay Primrose Ekaterini Boleti Heather Cheyne Mohammed Khalil Shirley Richardson Tracey Cruickshank Gillian Price Keith M. Kerr Sarah Benafif Dionysis Papadatos-Pastos James M. Wilson Tanya Ahmad Jack French Kayleigh Gilbert Babu Naidu Akshay J. Patel Aya Osman Christer Lacson Gerald Langman Helen Shackleford Madava Djearaman Salma Kadiri Gary Middleton Angela Leek Jack Davies Hodgkinson Nicola Totten Ángeles Montero

Abstract The introduction of the International Association for Study Lung Cancer grading system has furthered interest in histopathological risk stratification lung adenocarcinoma. Complex morphology and high intratumoral heterogeneity present challenges to pathologists, prompting development artificial intelligence (AI) methods. Here we developed ANORAK (pyrAmid pooliNg crOss stReam Attention networK), encoding multiresolution inputs with an attention mechanism, delineate growth patterns...

10.1038/s43018-023-00694-w article EN cc-by Nature Cancer 2024-01-10

To examine the measurement equivalence of items on disability across three international surveys aging. Data for persons aged 65 and older were drawn from Health Retirement Survey (HRS, n = 10,905), English Longitudinal Study Aging (ELSA, 5,437), Health, Ageing in Europe (SHARE, 13,408). Differential item functioning (DIF) was assessed using response theory (IRT) methods activities daily living (ADL) instrumental (IADL) items. HRS SHARE exhibited equivalence, but 6 11 ELSA demonstrated...

10.1093/geronb/gbr133 article EN The Journals of Gerontology Series B 2011-12-12

Rapid muscle wasting occurs during acute respiratory failure, resulting in weakness and functional impairments. This study examines survivors' body composition the year after distress syndrome tests associations of patient characteristics, hospital exposures, strength physical functioning with whole percent lean mass.Prospective cohort 6- 12-month follow-up.National enrolling patients from five centers.Acute survivors (n = 120).None.Lean fat mass dual energy x-ray absorptiometry. On average,...

10.1097/ccm.0000000000003183 article EN Critical Care Medicine 2018-05-04

Using nationally representative data, we examined biological, medical system, and sociodemographic factors that are associated with health-related quality of life as measured by a multidimensional index accounts for wide range child health domains.Children aged > or = 6 years (N 69,031) were drawn from the 2003/2004 National Survey Children's Health. A random 25% sample was used to create 12-item 0 100, based on conceptual framework Child Health Illness Profile. Bivariate multivariable...

10.1542/peds.2007-0480 article EN PEDIATRICS 2007-12-04

Health care quality is frequently described with measures representing the overall performance of a health system. Despite growing attention to overuse resources, there little experience aggregate overuse.To identify set possible indicators that can be operationalized claims data and describe variation in these across hospital referral regions (HRRs).Using an environmental scan, we identified published descriptions overused procedures. We assessed each procedure's feasibility for measurement...

10.1097/mlr.0000000000000052 article EN Medical Care 2013-12-27

Background Middle-aged and older adults requiring skilled home healthcare (‘home health’) services following hospital discharge are at high risk of experiencing suboptimal outcomes. Information management (IM) needed to organise communicate care plans is critical ensure safety. Little known about IM during this transition. Objectives (1) Describe the current process (activity goals, subactivities, information required, sources/targets modes communication) from health providers’ perspectives...

10.1136/bmjqs-2018-008163 article EN BMJ Quality & Safety 2018-07-17
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