Evaluating the Impact of Educational Videos on Vaccine Science Knowledge Among Virginia High School Students

Figures & data

Table 1. Student demographics.

	Control group	Experimental group	Total
n	76 (52.29%)	77 (47.71%)	153
Gender
Female	38 (50.00%)	42 (54.55%)	80 (52.29%)
Male	38 (50.00%)	35 (45.45%)	73 (47.71%)
Race
African American	19 (25.00%)	12 (15.59%)	31 (20.26%)
Asian	19 (25.00%)	39 (50.65%)	58 (37.91%)
Caucasian	20 (26.32%)	15 (19.48%)	35 (22.88%)
Hispanic	13 (17.11%)	11 (14.29%)	24 (15.69%)
Prefer not to say	5 (6.58%)	0 (0.00%)	5 (3.27%)
Reduced lunch eligibility
Yes	27 (35.53%)	23 (29.87%)	50 (32.68%)
No	49 (64.47%)	54 (70.13%)	103 (67.32%)

Table 2. Differences in vaccine knowledge amongst students.

		Control group (nonspecific science video)			Experimental Group (Vaccine curriculum)
Question	Answer	Correct Responses n (%)	Correct Responses n (%)	P value	Correct Reponses n (%)	Correct Responses n (%)	p value
1. Polio was eliminated from the U.S. in 1990	False	37(48.68%)	43(56.58%)	.3297	34 (44.16%)	44 (57.14%)	.107
2. There are two reasons to immunize: a. To protect the individual directly b. To protect those who cannot receive vaccines	True	69(90.79%)	71(93.42%)	.5475	71 (92.21%)	71 (92.21%)	1
3. Herd immunity occurs when enough people are made immune through vaccination to protect those who have not been immunized because they are not exposed to the germ.	True	56 (73.68%)	58 (76.3%)	.7079	52 (67.53%)	71 (92.21%)	.0001343**
4. All U.S. states have immunization requirements	True	46 (60.53%)	52 (68.42%)	.3092	39 (50.65%)	58 (75.32%)	.001519**
5. Vaccines are extensively tested for efficacy and safety before they are licensed.	True	74 (97.37%)	72 (94.74%)	.4048	75 (97.40%)	76 (98.70%)	.5599
6. Pertussis is called “whooping cough because of the sound victims make when trying to inhale.	True	61(80.26%)	62(81.58%)	.8365	64 (83.11%)	71 (92.21%)	.08631*
7. Pregnant women should not get vaccinated against pertussis in order to protect their newborn infants	False	45 (59.21%)	51 (67.11%)	.313	55 (71.43%)	66 (85.71%)	.03075**
8. Cancer of the cervix is caused by a virus called human papilloma virus.	True	59 (77.63%)	62 (81.58%)	.5459	62 (80.52%)	73 (94.81%)	.007032**
9. Males do not get cancer from human papilloma virus.	False	57 (75%)	57 (75%)	1	56(72.73%)	65 (84.42%)	.07715*
10. There is an effective vaccine to prevent meningococcal disease.	True	59 (77.63%)	63 (82.89%)	.415	57 (74.03%)	70 (90.91%)	.005869**
11. Two types of influenza (A and B) cause most disease in humans.	True	62 (81.58%)	61 (80.26%)	.8365	62 (80.52%)	72 (93.51%)	.0165**
12. Where do new strains of influenza often first appear each year?	Asia	30 (39.47%)	50 (65.79%)	.001158*	44 (57.14%)	67 (87.01%)	3.606 e-05**
13. Each year the U.S. loses over $90 billion due to Influenza.	False	15 (19.74%)	15 (19.74%)	1	20 (25.97%)	33 (42.86%)	.02746**
14. A pandemic is caused by a germ spreading all over the world.	True	62 (81.58%)	63 (82.90%)	.8319	67 (87.01%)	69 (89.61%)	.6159
15. More children get sick from influenza each year than do adults.	True	61 (80.26%)	67 (88.16%)	.182	67 (87.01%)	71 (92.21%)	.2908
16. Immunizing pregnant women against influenza prevents influenza in their newborns.	True	43 (56.58%)	50 (65.79%)	.244	29 (37.66%)	58 (75.32%)	2.433 e-06**
17. Measles has been eradicated worldwide.	False	50 (65.79%	51 (67.11%)	.8636	54 (70.13%)	64 (83.12%)	.05691*
18. There are effective vaccines to prevent COVID-19.	True	66 (86.84%)	71 (93.42%)	.1739	74 (96.10%)	75 (98.68%)	.3173

*Denotes approaching statistical significance (p < .1)

**Denotes statistical significance (p < .05)