To rule out any effect of injection on mortality, in a prior experiment, we kept naive, ringer-injected, and LPS-injected callow workers in plastic cages in an incubator and found no differences between groups in the survival over the time observed (data not shown).
A log-rank test was used to compare survival between groups in Kaplan-Meier survival plots.
No significant differences were noted between groups in progression-free survival (P=0.33) or overall survival (P=0.50), although there were trends toward higher 1-year and 2-year survival rates in the DC.
For the univariate analysis, survival curves were obtained with the Kaplan-Meier method, and the differences between the groups in survival were determined by the log-rank test.
Differences between risk groups in survival analysis were also significant for both 17-gene (P = 0.023) and eight-gene (P = 0.004, Figure 5C) models.
This study showed a heartening lack of difference between ethnic groups in survival from breast cancer over the course of time since screening started, although the deprivation gap was still very much apparent despite screening attendance.
During the first year of study, there was little difference between groups in quality-adjusted survival.
They found no significant difference between the two groups in survival or in the rate of achieving a good neurological outcome.
Stiell and coworkers [ 15] observed no difference between adrenaline and vasopressin groups in survival rates at 1 hour and 30 days.
