Table 3. Comparison of serum T lymphocyte levels before and after chemotherapy between the 2 groups.

Indicators	Period	Infection group (n=36)	Normal group (n=120)	t value	P value
CD3+ (%)	Before chemotherapy	63.19±3.41	67.62±3.73	6.370	<0.001
	After chemotherapy	61.08±2.86	65.35±3.17	7.243	<0.001
CD3+CD4+ (%)	Before chemotherapy	31.26±4.48	35.49±5.61	4.142	<0.001
	After chemotherapy	24.19±2.67	29.62±3.49	8.603	<0.001
CD3+CD8+ (%)	Before chemotherapy	24.91±3.59	25.62±3.32	1.404	0.271
	After chemotherapy	24.31±3.74	24.36±4.13	0.065	0.065
CD4+/CD8+	Before chemotherapy	1.08±0.25	1.36±0.27	4.993	<0.001
	After chemotherapy	0.76±0.14	1.18±0.21	11.260	<0.001