Table I.

Effects of ¹²⁵I seed irradiation on esophageal fibroblast proliferation.

Group	OD490	IR (%)
0 MBq	0.964±0.052	0
11.1 MBq	0.706±0.019a	26.81±1.96
22.2 MBq	0.632±0.031a	34.52±3.21
33.3 MBq	0.527±0.025a	45.33±2.59

IR was calculated according to the formula described above. Values are presented as the mean ± standard deviation.

^aP<0.05 vs. 0 MBq.

IR, inhibition rate; OD₄₉₀, optical density at 490 nm.