Table 2.

Surviving fractions of MECs from plasma treatments under three different operational conditions of the APPJ device and the approximate X-ray doses that would cause the comparable fractions of clonogenic cell death.

Operational conditions* of APPJ device		Clonogenic surviving fraction (SF)	Fraction of clonogenic cell death (1–SF)	X-ray dose for comparable fraction of clonogenic cell death (1–SF)
1	(5 kVp, 2 LPM, 2 min)	0.206 ± 0.029**	0.794	4.5 Gy
2	(7 kVp, 2 LPM, 1 min)	0.151 ± 0.013	0.849	5.3 Gy
3	(7 kVp, 2 LPM, 2 min)	0.048 ± 0.009	0.952	7.7 Gy

^*(applied voltage, helium gas flow rate, duration of treatment).

^**standard error.