Table 2. The statistics of the variation of Th1/Th2 and Tc1/Tc2 before and immediately after radiotherapy in 30 patients.

Lymphocyte subpopulations	After radiotherapy		Variation range (%)	Varieties >5%
	Up-regulation	Down-regulation
Th1	13/30 (average 8.49%)	17/30 (average 11.58%)	0.99–47.84	18/30
Th2	18/30 (average 3.14%)	12/30 (average 1.19%)	0.13–15.49	2/30
Tc1	12/30 (average 8.31%)	18/30 (average 30.49%)	0.5–64.82	25/30
Tc2	18/30 (average 1.87%)	12/30 (average 1.19%)	0.01–5.13	1/30