User profiles for LE Griffith

Lauren E Griffith

McMaster University
Verified email at mcmaster.ca
Cited by 39936

Vitamin D, cognition, and dementia: a systematic review and meta-analysis

C Balion, LE Griffith, L Strifler, M Henderson… - Neurology, 2012 - AAN Enterprises
Griffith receives research support from the Canadian Institutes of Health Research, Agency
for Healthcare Research and Quality, and Ontario Ministry of Long-Term Care. L. Strifler has …

Interpreting treatment effects in randomised trials

GH Guyatt, EF Juniper, SD Walter, LE Griffith… - Bmj, 1998 - bmj.com
The need to measure the impact of treatments on health related quality of life has led to a
rapid increase in the variety of instruments available and in their use as measures of outcome …

Mortality predictions in the intensive care unit: comparing physicians with scoring systems

…, DJ Cook, HJ Schünemann, LE Griffith… - Critical care …, 2006 - journals.lww.com
Objective: Risk-prediction models offer potential advantages over physician predictions of
outcomes in the intensive care unit (ICU). Our systematic review compared the accuracy of …

Determining a minimal important change in a disease-specific quality of life questionnaire

EF Juniper, GH Guyatt, A Willan, LE Griffith - Journal of clinical …, 1994 - Elsevier
This study was carried out to determine whether the minimal important difference, in evaluative
quality of life instruments which use a 7-point scale, is similar across individual domains …

The results of direct and indirect treatment comparisons in meta-analysis of randomized controlled trials

HC Bucher, GH Guyatt, LE Griffith, SD Walter - Journal of clinical …, 1997 - Elsevier
When little or no data directly comparing two treatments are available, investigators often
rely on indirect comparisons from studies testing the treatments against a control or placebo. …

Measuring quality of life in children with asthma

…, GH Guyatt, DH Feeny, PJ Ferrie, LE Griffith… - Quality of life …, 1996 - Springer
The Paediatric Asthma Quality of Life Questionnaire contains 23 items that children with
asthma have identified as troublesome in their daily lives. The aim was to evaluate the …

Incidence of and risk factors for ventilator-associated pneumonia in critically ill patients

DJ Cook, SD Walter, RJ Cook, LE Griffith… - Annals of internal …, 1998 - acpjournals.org
Background: Understanding the risk factors for ventilator-associated pneumonia can help to
assess prognosis and devise and test preventive strategies. Objective: To examine the …

Measuring quality of life in asthma

…, GH Guyatt, PJ Ferrie, LE Griffith - American Review of …, 1993 - atsjournals.org
Study Design In an 8-wk unblinded single cohort study, patients with adequately controlled
asthma symptoms continued on their established treatment regimens. Patients whose …

Stress ulcer prophylaxis in critically III patients: resolving discordant meta-analyses

…, BK Reeve, GH Guyatt, DK Heyland, LE Griffith… - Jama, 1996 - jamanetwork.com
Purpose. —To resolve discrepancies in previous systematic overviews and provide estimates
of the effect of stress ulcer prophylaxis on gastrointestinal bleeding, pneumonia, and …

Measuring quality of life in the parents of children with asthma

…, GH Guyatt, DH Feeny, PJ Ferrie, LE Griffith… - Quality of life …, 1996 - Springer
Parents and primary caregivers of children with asthma are limited in normal daily activities
and experience anxieties and fears due to the child's illness. We have developed the …