Table 2. Treatments involvement in honeybee survival probability.

Variable	Wald’s statistic	p-value
Sequence of treatments	11.4	0.001
N. ceranae infection on day 0	42.1	0.000
N. ceranae infection on day 7	0.2	0.630
Fipronil exposure from day 0 to 7	24.1	0.000
Fipronil exposure from day 7 to 14	4.5	0.034

The given Wald’s statistic and p-value are results of the Cox’s Proportional Hazard Model (n = 1539). Significant differences (p≤0.05) are underlined. The higher the Wald's statistic, the higher the variable participates in affecting the survival.