A comparison of sexual behaviour and attitudes of healthy adolescents in a Danish high school in 1982, 1996, and 2001

Table 1 Demographic data for the three survey years.

	No. students	No. participants	Participation rate	Mean age	Median age
Girls
1982	398	279	70%	17.7	17
1996	330	247	79%	18.0	18
2001	266	193	73%	17.6	17
Boys
1982	228	118	52%	18.0	18
1996	169	94	56%	18.1	18
2001	143	77	54%	17.4	17

ISSN: 1478-7954