TABLE 4—

Main Reasons Why Unvaccinated US Women Aged 18–26 Years, Who Were Not Interested in Receiving the Human Papillomavirus Vaccine or Who Were Undecided, Chose to Forgo Vaccination: Pooled National Health Interview Survey, 2008 and 2010

	2008 (n = 782)		2010 (n = 988)
Main Reasona	No. of Women	% (95% CI)	No. of Women	% (95% CI)	P
Don’t need it	269	35.9 (31.1, 40.8)	396	40.7 (37.0, 44.5)	.131
Don’t know enough about the vaccine	154	17.1 (13.7, 20.5)	135	11.8 (9.4, 14.1)	.007
Worried about safety	80	12.6 (9.4, 15.8)	106	12.3 (9.4, 15.2)	.887
Not sexually active	66	10.3 (6.8, 13.7)	71	8.1 (5.6, 10.5)	.289
Doctor did not recommend	45	5.4 (3.7, 7.0)	77	7.4 (5.2, 9.7)	.089
Too expensive	16	1.8b (0.6, 2.9)	27	2.5 (1.2, 3.8)	.412
Too old	32	3.6 (2.1, 5.1)	28	2.3 (1.3, 3.2)	.143
Already have HPV	23	2.7 (1.4, 4.0)	25	2.7 (1.5, 3.9)	.958
Otherc	59	6.5 (4.5, 8.5)	105	10.8 (8.5, 13.2)	.007
Don’t know or refused to answer	38	4.1 (2.2, 6.0)	18	1.4 (0.6, 2.3)	.001

Note. CI = confidence interval; HPV = human papillomavirus. Survey design adjusted estimate and corresponding 95% CI. Adjusted for complex survey design. Weighted with WTFA_SA/2.

^aAll response categories were mutually exclusive.

^bDoes not meet National Health Interview Survey standard for reliability or precision.

^cIncludes “Other,” “Don’t know where to get the vaccine,” and “Spouse/family member is against it.”