*This question was phrased by the source as follows: "Quel âge aviez-vous la première fois que vous avez eu des relations sexuelles ?" which translates as "How old were you the first time you had sexual intercourse?"
2,008 respondents were from Flanders, 1,856 from Wallonia, and 1,210 from the Brussels-Capital Region.
Citation formats
Share of people in Belgium who had sex before the age of 15 2018, by education
In 2018, the higher the education level, the lower the share of Belgians had sexual intercourse before the age of **. Whilst roughly ** percent of Belgians with primary education had sex before the age of **, about *** percent of Belgians with higher education had such early sexual relations.
According to this survey, the precocity of sexual relations in Belgium is influenced by the level of education. The risk of STDs and unplanned pregnancies are favored by risky sexual behaviors, which can be fostered by the precocity of sexual relations.
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Sciensano. (October 1, 2019). Share of population in Belgium who had their first sexual intercourse before the age of 15 in 2018, by level of education* [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 24, 2026, from /statistics/1086338/share-sexual-intercourse-before-age-fifteen-belgium/
Sciensano. "Share of population in Belgium who had their first sexual intercourse before the age of 15 in 2018, by level of education*." Chart. October 1, 2019. ÌÇÐÄÆƽâ°æ. Accessed July 24, 2026. /statistics/1086338/share-sexual-intercourse-before-age-fifteen-belgium/
Sciensano. (2019). Share of population in Belgium who had their first sexual intercourse before the age of 15 in 2018, by level of education*. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 24, 2026. /statistics/1086338/share-sexual-intercourse-before-age-fifteen-belgium/
Sciensano. "Share of Population in Belgium Who Had Their First Sexual Intercourse before The Age of 15 in 2018, by Level of Education*." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 1 Oct 2019, /statistics/1086338/share-sexual-intercourse-before-age-fifteen-belgium/
Sciensano, Share of population in Belgium who had their first sexual intercourse before the age of 15 in 2018, by level of education* ÌÇÐÄÆƽâ°æ, /statistics/1086338/share-sexual-intercourse-before-age-fifteen-belgium/ (last visited July 24, 2026)
Share of population in Belgium who had their first sexual intercourse before the age of 15 in 2018, by level of education* [Graph], Sciensano, October 1, 2019. [Online]. Available: /statistics/1086338/share-sexual-intercourse-before-age-fifteen-belgium/
