Table 2: The medians of the differentials between low dose and high dose for quantitative variables.

Median of Differential LD-HD	M1	M2	M3	M4
S1	-0.05 [-15; 11.8]	-0.25 [-1.7; 0.9]	-0.3 [-2.5; 0.6]	0 [-0.5; 1.6]
	0.989	0.057	0.107	0.475
S2	-0.05 [-5.5; 0.9]	-0.1 [-3; 1]	0.05 [-0.6; 0.7]	0 [-0.3; 0.4]
	0.106	0.096	0.974	0.551
S3	-0.1 [-5.3; 2.3]	0.1 [-1.7; 1]	-0.2 [-1.1; 0]	-0.1 [-0.6; 0.9]
	0.920	0.087	0.409	0.906
S4	-0.1 [-4.9; 1.2]	0 [-1.1; 1.5]	-0.05 [-1.1; 0.3]	0.1 [-3.5; 0.8]
	0.085	0.396	0.305	0.528
S5	0 [-5.1; 1.3]	-0.5 [-1.1; 1.3]	-0.15 [-0.9; 0.9]	-0.2 [-2 ; 0.4]
	0.510	0.456	0.430	0.077