Parental intention to vaccinate adolescents with HPV vaccine in selected communities in Ibadan, Southwest Nigeria: an application of Integrated Behavioral Model

Figures & data

Figure 1. Map of the study communities.

Table 1. Sociodemographic characteristics of the parents of adolescents in selected communities in Ibadan.

Variable	Frequency	%
Age(years)
≤35	186	27.8
36 - 45	268	40.1
46 - 55	146	21.9
56 - 65	47	7.0
≥66	21	3.1
Sex
Male	230	33.9
Female	448	66.1
Religion
Christianity	309	45.6
Islam	369	54.4
Ethnicity
Yoruba	645	95.1
Igbo	26	3.8
Hausa	3	0.4
Others	4	0.6
Socioeconomic class
High	5	0.7
Middle	346	51.0
Low	327	48.3
Number of adolescents had
>1	447	65.9
1	231	34.1

Table 2. Association of parental intention to immunize adolescents with HPV vaccine and each component of the Integrated Behavioural Model among parents of adolescents in selected communities in Ibadan.

Component	Correlation (ρ)
Overall attitude	0.66
Experiential attitude	0.74
Instrumental attitude	0.33
Perceived norm	0.39
Injunctive norm	0.39
Descriptive norm	0.32
Personal agency	0.45
Self-efficacy	0.46
Perceived control	0.32

Table 3. Association between parental intention to vaccinate adolescents with HPV vaccine and selected parental sociodemographic characteristics of parents of adolescents in selected communities in Ibadan.

	Intention to vaccinate adolescent with HPV vaccine
Sociodemographic characteristics	Yes (%)	No (%)	p value
Age (years)
≥35	178(95.7)	8(4.3)	<.01*
36 - 45	266(99.3)	2(0.7)
46 - 55	141(96.6)	5(3.4)
56 - 65	45(95.7)	2(4.3)
≥66	16(76.2)	5(23.8)
Sex
Male	222(96.5)	8(3.5)	.81
Female	434(96.9)	14(3.1)
Religion
Christianity	298(96.4)	11(3.6)	.68
Islam	356(97.0)	11(3.0)
Socioeconomic class
High	5(100.0)	0(0.0)	.87
Middle	333(96.5)	12(3.5)
Low	317(96.8)	10(3.2)
Number of adolescents in the family
>1	432(96.6)	15(3.4)	.51
1	224(97.0)	7(3.0)

*Likelihood ratio reported.

Table 4. Association between the components of the Integrated Behavioural Model and parental intention to vaccinate adolescents with HPV vaccine among parents of adolescents in selected communities in Ibadan.

	Intention to vaccinate adolescents with HPV vaccine
Components of Integrated Behavioural Model	Yes (%)	No (%)	p value
Overall attitude
Good	332(49.0)	3(0.4)	<.01*
Poor	324(47.8)	19(2.8)
Experiential attitude
Good	522(77.0)	4(0.6)	<.01*
Poor	134(19.8)	18(2.7)
Instrumental attitude
Good	320(47.2)	5(0.7)	.02
Poor	336(49.6)	17(2.5)
Perceived norm
Good perception	412(60.8)	3(0.4)	<.01*
Poor perception	244(36.0)	19(2.8)
Injunctive norm
Good	403(59.4)	3(0.4)	<.01*
Poor	253(37.3)	19(2.8)
Descriptive norm
Good	393(58.0)	3(0.4)	<.01*
Poor	263(38.8)	19(0.4)
Personal agency
Good	375(55.3)	1(0.1)	<.01*
Poor	281(41.4)	21(3.1)
Perceived control
Good	357(52.7)	4(0.6)	<.01*
Poor	299(44.1)	18(2.7)
Self-efficacy
Good	400(59.0)	2(0.3)	<.01*
Poor	256(37.8)	20(2.9)

*Likelihood ratio reported.

Table 5. Predictors of parental intention to vaccinate adolescents with HPV vaccine using components of Integrated Behavioural Model among parents of adolescents in selected communities in Ibadan.

Model		Unstandardised coefficient		p value	95% CI
		B	Standard error
1	Constant	0.67	0.07	<.01	0.53, 0.82
	Mean experiential attitude	1.01	0.04	<.01	0.94, 1.08
2	Constant	0.46	0.08	<.01	0.31, 0.61
	Mean experiential attitude	0.91	0.04	<.01	0.83, 0.98
	Mean personal agency	0.25	0.04	<.01	0.18, 0.31
3	Constant	0.40	0.08	<.01	0.25, 0.55
	Mean experiential attitude	0.88	0.04	<.01	0.80, 0.95
	Mean personal agency	0.22	0.04	<.01	0.15, 0.29
	Mean injunctive norm	0.08	0.03	<.01	0.02, 0.13