Sex	Parents' highest level of studies	Preferred source of sexual information	Total
Both sexes	Total	Total	100.00
Both sexes	Total	Old parents or relatives	52.94
Both sexes	Total	Siblings or friends	12.60
Both sexes	Total	Partner	5.04
Both sexes	Total	Professionals	25.99
Both sexes	Total	Various support	3.43
Both sexes	Lower than secondary education	Total	100.00
Both sexes	Lower than secondary education	Old parents or relatives	54.18
Both sexes	Lower than secondary education	Siblings or friends	12.10
Both sexes	Lower than secondary education	Partner	5.26
Both sexes	Lower than secondary education	Professionals	25.45
Both sexes	Lower than secondary education	Various support	3.00
Both sexes	Secondary education	Total	100.00
Both sexes	Secondary education	Old parents or relatives	49.20
Both sexes	Secondary education	Siblings or friends	13.17
Both sexes	Secondary education	Partner	5.08
Both sexes	Secondary education	Professionals	27.35
Both sexes	Secondary education	Various support	5.20
Both sexes	University	Total	100.00
Both sexes	University	Old parents or relatives	49.21
Both sexes	University	Siblings or friends	15.25
Both sexes	University	Partner	3.53
Both sexes	University	Professionals	27.91
Both sexes	University	Various support	4.10
Males	Total	Total	100.00
Males	Total	Old parents or relatives	47.27
Males	Total	Siblings or friends	16.06
Males	Total	Partner	5.62
Males	Total	Professionals	27.40
Males	Total	Various support	3.66
Males	Lower than secondary education	Total	100.00
Males	Lower than secondary education	Old parents or relatives	47.72
Males	Lower than secondary education	Siblings or friends	15.70
Males	Lower than secondary education	Partner	5.74
Males	Lower than secondary education	Professionals	27.36
Males	Lower than secondary education	Various support	3.47
Males	Secondary education	Total	100.00
Males	Secondary education	Old parents or relatives	47.24
Males	Secondary education	Siblings or friends	14.67
Males	Secondary education	Partner	5.65
Males	Secondary education	Professionals	28.18
Males	Secondary education	Various support	4.25
Males	University	Total	100.00
Males	University	Old parents or relatives	44.41
Males	University	Siblings or friends	19.85
Males	University	Partner	4.80
Males	University	Professionals	26.75
Males	University	Various support	4.19
Females	Total	Total	100.00
Females	Total	Old parents or relatives	58.67
Females	Total	Siblings or friends	9.10
Females	Total	Partner	4.46
Females	Total	Professionals	24.57
Females	Total	Various support	3.20
Females	Lower than secondary education	Total	100.00
Females	Lower than secondary education	Old parents or relatives	60.71
Females	Lower than secondary education	Siblings or friends	8.46
Females	Lower than secondary education	Partner	4.77
Females	Lower than secondary education	Professionals	23.53
Females	Lower than secondary education	Various support	2.54
Females	Secondary education	Total	100.00
Females	Secondary education	Old parents or relatives	50.98
Females	Secondary education	Siblings or friends	11.79
Females	Secondary education	Partner	4.57
Females	Secondary education	Professionals	26.60
Females	Secondary education	Various support	6.06
Females	University	Total	100.00
Females	University	Old parents or relatives	54.69
Females	University	Siblings or friends	9.99
Females	University	Partner	2.08
Females	University	Professionals	29.23
Females	University	Various support	4.00