Publications
Explore 688 academic publications
Collinearity: a review of methods to deal with it and a simulation study evaluating their performance
Collinearity refers to the non independence of predictor variables, usually in a regression‐type analysis. It is a common feature of any descriptive ecological data set and can ...
‘Small Changes' to Diet and Physical Activity Behaviors for Weight Management
Obesity is associated with numerous short- and long-term health consequences. Low levels of physical activity and poor dietary habits are consistent with an increased risk of ob...
Comorbidity Measures for Use with Administrative Data
The comorbidities had independent effects on outcomes and probably should not be simplified as an index because they affect outcomes differently among different patient groups. ...
Communication Theory of Secrecy Systems*
THE problems of cryptography and secrecy systems furnish an interesting application of communication theory. <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="htt...