Now showing items 11-20 of 33
Bias reduction for risk ratio and vaccine effect estimators
(John Wiley & Sons, Ltd., 2001-06-15)
We examine the structural bias for established estimators of vaccine effects on susceptibility and for newer estimates of vaccine effects on infectiousness. We then propose and analyse new bias corrections for vaccine ...
Balanced centralized and distributed database design in a clinical research environment
(John Wiley & Sons, Ltd., 2000-06-15)
Clinical research databases can meet both research and clinical needs, but this ideal is seldom achieved. Priorities often differ for those who collect and ultimately use the data and those who develop data systems. ...
Psychosocial aspects of changes in cigarette-smoking behavior
(Elsevier, 1985-09)
This paper examines the relationships between patients' perceptions of susceptibility to illness, self-efficacy, anxiety, social support and subsequent changes in cigarette-smoking behavior through a prospective study ...
On weighting the rates in non-response weights
(John Wiley & Sons, Ltd., 2003-05-15)
A basic estimation strategy in sample surveys is to weight units inversely proportional to the probability of selection and response. Response weights in this method are usually estimated by the inverse of the sample-weighted ...
Variance estimation for clustered recurrent event data with a small number of clusters
(John Wiley & Sons, Ltd., 2005-10-15)
Often in biomedical studies, the event of interest is recurrent and within-subject events cannot usually be assumed independent. In semi-parametric estimation of the proportional rates model, a working independence assumption ...
Patient and physician perceptions of their relationship and patient satisfaction: A study of chronic disease management
(Elsevier, 1993-01)
This study investigated patient and physician perceptions of their relationship and examined how their perceptions related to patient satisfaction. Data are based on 134 patient physician interactions. Study participants ...
Managing better: Children, parents, and asthma
(Elsevier, 1986-03)
To evaluate a health education program to improve family management of asthma, 310 children with asthma and their 290 parents were randomly assigned to a program or control group. Program families participated in health ...
Group sequential monitoring of years of life saved with paired censored survival data
(John Wiley & Sons, Ltd., 2002-01-30)
This research develops non-parametric methodology for sequential monitoring of paired time-to-event data when comparing years of life saved, or years where any unpleasant outcome is delayed, is of interest. The recommended ...
A comparison of the diabetes-related attitudes of health care professionals and patients
(Elsevier, 1993-06)
The following study compares the diabetesrelated attitudes of sampled health care professionals and patients with diabetes. Attitudes were measured with a revised version of the Diabetes Attitude Scale (DAS) which includes ...