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. 2020 Nov 12;15(11):e0241674. doi: 10.1371/journal.pone.0241674

Table 3. Multivariable analysis of factors associated with knowledge about HPV, its clinical repercussions and its vaccine among parents/guardians and adolescents interviewed during implementation of HPV vaccine.

Sao Paulo, Brazil, 2015.

Variables Adolescents P-value Parents/guardians P-value
RR (95% CI) RR (95% CI)
Sex
Male 1.00 1.00
Female 1.67 (1.10–2.60) 0.023 0.89 (0.46–1.70) 0.716
Age
From 10 to 14 1.00 -
From 15 to 19 1.39 (0.91–2.10) 0.126 -
From 20 to 39 - 1.00
From 40 to 59 - 1.11 (0.75–1.65) 0.603
Above 60 - 0.64 (0.23–1.80) 0.399
Profission
Employed 1.00 1.00
Unemployed 1.41 (0.69–2.88) 0.348 0.64 (0.22–1.83) 0.406
Education
Less than High School 1.00 1.00
High School Complete or higher 0.95 (0.48–1.91) 0.900 3.38 (1.71–6.69) <0.001
HPV Vaccination
Non-Vaccinated 1.00 1.00
Vaccinated 1.89 (1.25–2.85) 0.002 1.33 (0.48–3.64) 0.578

RR: Relative risk; 95% CI Confidence Interval; Poisson regression.

Childbirth omitted because of collinearity.