evaluated and included as independent variables. The charac- teristics used as independent variables consisted of the 13 vulnerability scales of the Index of Vulnerability, total vulnerability, three clusters of vulnerability scales, three structural indices of social support, and socioeconomic status. The matrix of intercorrelations of psychosocial variables is included as Table 52, Appendix G. Also, the disease variable co-morbidity was included in this part of the analysis and related findings are reported in this sec- tion. The dependent variable was the survival quotient, a value which reflected longer or shorter than expected survival. Descriptive study Descriptive statistics for the 13 scales of the Index of Vulnerability are presented in Table 19. The ratings on these scales for the 30 individuals in the sample reflected greatest variation among the individuals in terms of turmoil, frustration, and depression, and least differences in terms of hopelessness and denial. The scales with the highest mean values were powerlessness, anxiety, and exhaustion. Those with the lowest mean values were worthlessness and repudia- tion of key others. Values of total vulnerability, which was the sum of the 13 items, ranged from 16.5 to 38.5 with a mean of 27.07 and a standard deviation of 5.96.