Smoking and genital human papilloma virus infection in women attending cervical cancer screening in Greece

Table 1 Association between smoking and high-risk human papilloma virus status, stratified according to age n (%)

Age (yr)	Smoking	HPV(+)	HPV(-)	Total	P	OR
25-34	Yes	95 (43.2)	125 (56.8)	220	< 0.001	2.3 (1.6-3.4)
	No	63 (24.8)	191 (75.2)	254
	Total	158	316	474
35-44	Yes	21 (12.1)	152 (87.9)	173	NS	1.1 (0.6-2.0)
	No	24 (11.6)	183 (88.4)	207
	Total	45	335	380
45-55	Yes	20 (9.7)	186 (90.3)	206	NS	1.5 (0.8-3.1)
	No	15 (6.5)	216 (93.5)	231
	Total	35	402	437
Total	Yes	136 (22.7)	463 (77.3)	599	< 0.001	1.7 (1.3-2.3)
	No	102 (14.7)	590 (85.3)	692
	Total	238	1053	1291

P-value of χ² test and corresponding OR (95%CI). NS: Not significant; HPV: Human papilloma virus.