A Survey of Doctors' Awareness of Simultaneous Vaccination

Hojun Lee; Hyun Seok Sec; Seek Won Choi; Ji Sung Kim; Eun Eui Kim; Cheol Am Kim; Byeong Hee Son; Kyun Woo Lee

doi:10.14776/piv.2015.22.2.69

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Lee, Sec, Choi, Kim, Kim, Kim, Son, and Lee: A Survey of Doctors' Awareness of Simultaneous Vaccination

Original Article

Pediatr Infect Vaccine 2015;22(2):69-74.

Published online: 21 January 2015

DOI: https://doi.org/10.14776/piv.2015.22.2.69

A Survey of Doctors' Awareness of Simultaneous Vaccination

Hojun Lee, Hyun Seok Sec, Seek Won Choi, Ji Sung Kim, Eun Eui Kim, Cheol Am Kim, Byeong Hee Son, Kyun Woo Lee

Department of Pediatrics, Dae-Dong Hospital, Busan, Korea

Received 11 November 201426 January 2015 Accepted 6 March 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

In this study, doctors were surveyed with a questionnaire to determine whether they performed simultaneous vaccination and whether there were any concerns about safety or anxiety. The purpose of this study was to determine any problems associated with doctors readily performing simultaneous vaccination.

Methods

A trained surveyor visited 241 doctors from every institution registered with the National Immunization Program (NIP) located within six districts (gu) in the City of Busan (Dongnae—gu, Geumjeong—gu, Yeonje—gu, Suyeong—gu, Busanjin—gu, Haeundae—gu); a total of 155 (64%) valid responses were obtained.

Results

Of the 155 respondents, 144 (93%) were already performing simultaneous immunizations and 141 (91%) had a positive view of the practice. However, among the 144 doctors performing simultaneous immunizations, 67 (47%) were not confident about its safety; side effects were seen after simultaneous immunization by 86 doctors, 35 (41%) of whom believed that the frequency or possibility of side effects in simultaneous immunizations was higher than that in sequential immunizations.

Conclusions

The use of simultaneous immunization is expanding quickly. However, among the doctors performing simultaneous immunizations, a high percentage had concerns over its unproven safety and potential side effects, indicating the need for academic societies or government institutions to present evidence to address such concerns.

Keywords: Immunization, Vaccination, Simultaneous vaccination, Doctors' awareness

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Fig. 1.

Perceptions of the necessity for simultaneous vaccination.

Fig. 2.

Status of simultaneous vaccination implementation.

Fig. 3.

Reasons for implementing simultaneous vaccination (multiple responses allowed).

Fig. 4.

Perceptions of simultaneous vaccination safety.

Fig. 5.

Risk awareness in simultaneous vaccination.

Table 1.

Demographic Characteristics of the Survey Respondents

	Characteristics (n:155)
Clinical experience	<10 vears	24 (15.5)
	10-19 vears	57 (36.8)
	20-29 vears	42 (27.1)
	30-39 years	27 (17.4)
	>40 vears	5(3.2)
Medical specialty	Pediatrics	81 (52.3)
	Internal Medicine	25(16.1)
	Familv Medicine	22 (14.2)
	General Suroerv	7 (4.5)
	General Practitioner	6 (3.9)
	Obstetrics&Gvnec0loov	6 (3.9)
	Otorhinolarvnqoloqv	4 (2.6)
	Etc.	4(2.6)
Average number of patients vaccinated per month	<10 patients	31 (20.0)
	10-49 natipnm	59 (38.1
	50-99 oatients	31 (20.0)
	>100 nafipnm	34(21.9)

Data are No (%) of cases

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