. 2019 Jan 9;41(3):1658–1668. doi: 10.3892/or.2019.6960

Table I.

Radiosensitivity of FaDu and FaDu-RR cell lines.

Cell line	ED₅₀ ± SEM	DMF (ED₅₀)	ED₉₀ ± SEM	DMF (ED₉₀)
FaDu	1.60±0.11	1	4.16±0.13	1
FaDu-RR	2.57±0.09^a	1.60	5.35±0.13^a	1.29

Comparison between parental (FaDu) and radioresistant (FaDu-RR) cell lines in sensitivity to irradiation. The ED₅₀ and ED₉₀ values are represented as the arithmetic mean (AM) ± standard error of the mean (SEM) from at least 3 independent experiments, performed in triplicates. DMF, dose-modifying factor; ED₅₀, effective dose killing 50% of the cells; ED₉₀, effective dose killing 90% of the cells.

P<0.05, significantly different from the parental FaDu cells.