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Table 2 The survival time of each group (days)

From: The in vivo study on the radiobiologic effect of prolonged delivery time to tumor control in C57BL mice implanted with Lewis lung cancer

Radiation schedule survival time (days) ± SE p value
Control 13.8 ± 2.4 <0.001
18 Gy as a single dose 28.8 ± 2.3  
9 Gy× 2 fractions at 60 min intervals 23.5 ± 3.7 0.011
2.57 Gy×7 at 10 min intervals 23.5 ± 3.7 0.004
9 Gy× 2 fractions at 30 min intervals 25.0 ± 2.9 0.026
2.57 Gy×7 at 5 min intervals 24.8 ± 2.8 0.027
  1. The survival time of each group was compared with the group irradiated with 18 Gy single fraction. Each date represents mean ± SE. We also compared the last four groups by chi-square test, the F value is 0.428 and p value is 0.735. (data not shown in this table)