Helen Doll

The Prevalence of Mental Disorders among the Homeless in Western Countries: Systematic Review and Meta-Regression Analysis (2008)

Seena Fazel, Vivek Khosla, Helen Doll, John Geddes

BackgroundThere are well over a million homeless people in Western Europe and North America, but reliable estimates of the prevalence of major mental disorders among this population are lacking. We...

The Parkinson's Disease Questionnaire (PDQ-39): evidence for a method of imputing missing data (2006)

Jenkinson, Crispin, Heffernan, Catherine, Doll, Helen, Fitzpatrick, Ray

Background: the Parkinson’s Disease Questionnaire (PDQ-39) is the most widely used Parkinson’s specific measure of health status. It is increasingly used in treatment trials, sometimes as a...

Relationship between health status and postoperative return to work (1996)

Lawrence, Kate, Doll, Helen, McWhinnie, Douglas

Background Time back to work or normal activity is often regarded as an outcome measure of interest after surgery. It has recently been used as a way of quantifying the benefits of minimal access...

Health-Related QOL in Acute Exacerbations of Chronic Bronchitis and Chronic Obstructive Pulmonary Disease: A Review of the Literature

Helen Doll, Marc Miravitlles

There is a lack of emphasis on health-related QOL (HR-QOL) changes associated with acute exacerbation of chronic bronchitis (CB) or chronic obstructive pulmonary disease (COPD). The aim of this...

The Prevalence of Mental Disorders among the Homeless in Western Countries: Systematic Review and Meta-Regression Analysis

Fazel, Seena, Khosla, Vivek, Doll, Helen, Geddes, John

Seena Fazel and colleagues show, through a systematic review and meta-regression analysis, that homeless people in Western countries have a higher prevalence of alcohol and drug dependence and mental...