. 2013 Mar 12;8(3):e59385. doi: 10.1371/journal.pone.0059385

Table 4. Linear regression analysis for each cell fraction.

	r ²
	dose vs. cell numbers		dose vs. expression
	X-rays	¹²C-ion beams	X-rays	¹²C-ion beams
CD34⁺CD38⁻CD45⁺	0.333^a	0.401^b	0.001	0.01
CD34⁺CD38^+/−CD45⁺	0.354^c	0.474^d	0.001	0.03
CD13⁺CD14^+/−CD15⁻	0.306^e	0.344^f	0.01	0.10
CD13⁺CD14^−/loCD15⁺	0.143	0.372^g	0.07	0.01
CD235a⁺	0.277^h	0.414ⁱ	0.18	0.001

CD34⁺ cells exposed to carbon-ion beams or X-rays at indicated doses were seeded in serum-free liquid cultures. Cell fraction showing significant differences for X-rays or carbon-ion beams on day 14 were used for linear regression analysis. ^aP = 3.20×10⁻², ^bP = 2.0×10⁻³, ^cP = 4.8×10⁻², ^dP = 1.0×10⁻⁴, ^eP = 9.0×10⁻³, ^fP = 5.0×10⁻³, ^gP = 4.0×10⁻³, ^hP = 1.2×10⁻², ⁱP = 2.0×10⁻³.