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ERICA: sexual initiation and contraception in Brazilian adolescents
#MMPMID26910547
Borges AL
; Fujimori E
; Kuschnir MC
; Chofakian CB
; de Moraes AJ
; Azevedo GD
; dos Santos KF
; de Vasconcellos MT
Rev Saude Publica
2016[Feb]; 50 Suppl 1
(Suppl 1
): 15s
PMID26910547
show ga
OBJECTIVE To estimate the prevalence of sexual initiation and contraceptive use
at the last sexual intercourse of Brazilian adolescents, according to
sociodemographic features. METHODS The data were obtained from the Study of
Cardiovascular Risks in Adolescents (ERICA), a national school-based
cross-sectional study. We included 74,589 adolescents from 32 geographic strata
(27 capitals and five sets of municipalities with more than 100,000 inhabitants
of each of the five macro-regions of the Country). Information on sexual
initiation and contraceptive use at the last sexual intercourse (male condom and
oral contraceptive pill) has been used. We have estimated prevalence and
confidence intervals (95%CI) considering sample weights according to sex, age,
type of school, residence status, macro-region and capitals. RESULTS We observed
that 28.1% (95%CI 27.0-29.2) of the adolescents had already initiated sexual
life, with higher prevalence among those aged 17 years (56.4%, 95%CI 53.9-58.9),
males (33.5%, 95%CI 31.8-35.2), studying at public schools (29.9%, 95%CI
28.5-31.4), and from the Northern region (33.9%, 95%CI 32.3-35.4), mainly from
Macapa, Manaus, and Rio Branco. Among those who had started their sexual life,
82.3% (95%CI 81.1-83.4) reported the use of contraceptive methods at the last
intercourse, and the prevalence of use was higher among adolescents aged 17 years
(85.3%, 95%CI 82.7-87.6), females (85.2%, 95%CI 83.8-86.5) and those living in
the Southern region (85.9%, 95%CI 82.9-88.5). Male condom was used by 68.8%
(95%CI 66.9-70.7), with no difference by type of school or macro-regions; the
contraceptive pill was used by 13.4% (CI95% 12.2-14.6), and more frequently used
among women (24.7%, 95%CI 22.5-27,0) and 17-year-old adolescents (20.8%, 95%CI
18.2-23.6) from urban settings(13.7%, 95%CI 12.5-14.9) and from the Southern
region (22.6%, 95%CI 19.0-26.8), and less often in the Northern region.
CONCLUSIONS ERICA's data analysis on sexuality and contraception shows
heterogeneities in the prevalence of sexual initiation and use of contraceptive
methods among Brazilian adolescents, depending on their age, where they live, and
the type of school they study at. Younger adolescents and those living in the
Northern region seem to be more vulnerable to the consequences of unprotected
sexual intercourses.
|Adolescent
[MESH]
|Adolescent Behavior/physiology
[MESH]
|Brazil
[MESH]
|Condoms/statistics & numerical data
[MESH]
|Contraception
[MESH]
|Contraception Behavior
[MESH]
|Cross-Sectional Studies
[MESH]
|Female
[MESH]
|Humans
[MESH]
|Male
[MESH]
|Residence Characteristics
[MESH]
|Sexual Behavior/*statistics & numerical data
[MESH]
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