Objective: To assess whether a video about infant immunization could i
nform parents as well as human counselling (oral presentation). Method
s: Core information for parents about infant immunization was identifi
ed and packaged in an instructional video and a scripted oral presenta
tion. Volunteer prenatal classes were randomly assigned a video or ora
l presentation. Participants completed pre- and post-test questionnair
es covering the same 16 items. Scores were compared for each question
and as a group means, using Fisher's exact test, 2-sided. Results: 227
subjects participated, including 102 men and 124 women. Groups were s
imilar in terms of gender mix, parenting experience and recent reading
about immunization. Pre-test knowledge scores were similarly low betw
een groups. Post-test scores were much higher but did not differ signi
ficantly between groups. Conclusions: In a prenatal classroom setting,
video and oral presentations were equally effective in conveying key
information about infant immunization.