Estimating Survival Time on Restricted Diet from Weight Loss and Water Intake.
Abstract
A study was made of the relationship between mean weight loss and mean survival time of groups and between mean water intake and mean survival time of groups. Regression equations for survival time on weight loss were determined, as well as multiple regression equations for survival time on weight loss and water intake when the latter gave better estimates. In order to determine whether the estimates of mean survival time for the various diets were significantly different, a formula was derived for the standard error of the difference between two such estimates. An analysis of covariance between weight loss in four days and survival time was worked out for the groups receiving water ad lib, with no vitamin supplement. A study was made of the regression of survival time on weight loss and water intake for individual rats. For individuals receiving only 5 cc. of water per rat per day, the regression of survival time on weight loss alone was studied.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1953
- Accession Number
- ADA004858
Entities
People
- H. Leon Harter
- High B. Lewis