Clarification of “Impact of a physician recommendation and parental immunization attitudes on receipt or intention to receive adolescent vaccines”

Keywords:

• adolescents
• vaccines
• attitudes
• parents
• physicians

It has come to our attention that further clarification of some results from our study “Impact of a physician recommendation and parental immunization attitudes on receipt or intention to receive adolescent vaccines” is needed. In particular, this addendum presents an expanded format and explanation of Table 5 “Association of physician recommendation for any adolescent vaccine and receipt of or intent to receive recommended vaccine.” Compared with parents who did not get a physician's recommendation, parents who did receive a physician's recommendation for any of the four vaccines were significantly more likely to report that their adolescent had received the Tdap vaccine (P < 0.001), MCV4 vaccine (P < 0.001), and HPV vaccine (P = 0.03) (Table 5A). Among parents who had not vaccinated their adolescent, physician recommendation was also significantly associated with intention to vaccinate with Tdap vaccine (P = 0.05), MCV4 vaccine (P = 0.005), and HPV vaccine (P = 0.05) compared with those parents who had not received a physician recommendation (Table 5A). Physician recommendation for any of the four adolescent vaccines was not associated with receipt of influenza vaccine (P = 0.71) or intention to vaccinate against influenza (P = 0.95) (Table 5A).

Table 5A. Association of physician recommendation for any adolescent vaccine and receipt of or intent to receive recommended vaccine

	Receipt of vaccine			Intent to receive vaccine
	Physician recommendation N (%)^+	No physician recommendation N (%)^+	p-value	Physician recommendation N (%)^2+	No physician recommendation N (%)^2+	p-value
Influenza vaccine	82 (70.1)	5 (4.3)	0.71	43 (58.9)	6 (8.2)	0.95
Tdap vaccine	96 (82.0)	1 (0.9)	<0.001*	10 (50.0)	3 (15)	0.05*
MCV4 vaccine	79 (67.5)	1 (0.9)	<0.001*	22 (59.5)	3 (8.1)	0.005*
HPV vaccine	47 (40.2)	0 (0)	0.03*	43 (64.2)	4 (6.0)	0.05*

Note: Table addendum to Table 5* Significant at α ≤ 0.05; ⁺ Out of all participants; ²⁺ Out of those who did not receive the vaccine.

In summary, physician recommendation for any of the four adolescent vaccines was significantly associated with receipt of Tdap, MCV4, and HPV vaccines. In addition, physician recommendation was also significantly associated with intention to receive the Tdap, MCV4, and HPV vaccines. With this addendum, we seek to clarify our earlier table. We apologize for any confusion that may have occurred.