Table 3. Association of CD8⁺ and CD4⁺ T cell responses with smoking history, treatment status, and tumor stage in multivariate linear regression analysis.

Responding T cell subset	HPV antigen	Smoking history	Treatment status	Tumor stage
CD8+	E1	NS	0.0106	NS
	E2	NS	0.0797	NS
	E5	0.0897	NS	NS
	E6	NS	0.0164	0.044
	E7	NS	NS	NS
	L1	NS	0.053	NS
CD4+	E1	NS	NS	NS
	E2	NS	0.007	NS
	E4	NS	NS	NS
	E7	NS	0.0043	NS

NS, P > 0.1.