Hypotheses two and three were concerned with the
proportion of variability in survival that can be accounted
for by (a) psychosocial variables and (b) the combined
effects of psychosocial variables and co-morbidity. Both
hypotheses were tested for the sample of patients interviewed
through regression analyses using the log value of the
survival quotient as the dependent variable and the selected
psychosocial variables and co-morbidity as the independent
variables.
Disease variables and psychosocial status
The independent variables. The relationship between
three disease variables and selected psychosocial variables
was studied by correlating three disease variables, two
developed during the study, with the 13 vulnerability scales
and total vulnerability. These variables are listed in
Table 12.
Table 12
Disease Characteristics Used as Independent Variables
Variables
Co-morbidity
Duration of time since diagnosis
Closeness to death
Note. All independent variables listed were continuous.