Table 2.

Descriptive statistics of C _t values for the five potential reference genes from 36 samples obtained in the experiment (3 donors × 3 doses × 4 time points)

	Valid N	Mean C t	Median C t	Minimum C t	Maximum C t	Variance	Std. dev.
ITFG1 C t	36	29.94	29.92	28.72	31.72	0.51	0.71
DPM1 C t	36	29.17	29.09	27.87	31.25	0.59	0.77
HPRT1 C t	36	31.23	30.98	29.71	34.24	0.89	0.95
GAPDH C t	36	25.40	24.97	23.32	28.99	1.59	1.26
ACTB C t	36	23.49	23.45	21.66	26.76	1.84	1.35