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1999 YRBS High School Survey

Oregon Youth Risk Behavior Survey (YRBS)
1999 High School

Weighted Column Percents | Counts

Q77 What percentage of your classmates, your same age and gender, have had sexual intercourse? Would you guess:

Weighted Column Percents

TOTAL Grade
9th 10th 11th 12th
TOTAL 100.0 100.0 100.0 100.0 100.0
less than 20% 14.5 29.1 13.6 7.7 4.4
20%-29% 13.0 18.9 14.9 9.7 6.7
30%-39% 16.1 17.1 18.8 16.5 11.1
40%-49% 13.7 11.7 14.8 15.8 12.7
50%-59% 15.3 10.7 15.3 17.1 19.5
60%-69% 12.1 5.7 10.4 15.0 19.2
70%-79% 8.4 3.3 6.8 10.7 14.5
more than 80% 6.8 3.4 5.5 7.6 11.9
Female Total 100.0 100.0 100.0 100.0 100.0
less than 20% 11.4 24.9 9.5 4.8 2.8
20%-29% 12.0 19.6 13.0 7.5 5.3
30%-39% 15.4 17.8 18.8 14.6 8.7
40%-49% 13.8 12.8 14.2 16.2 12.0
50%-59% 16.4 11.8 17.8 18.8 18.3
60%-69% 13.2 6.4 11.8 16.5 20.2
70%-79% 10.1 3.8 8.9 12.6 17.3
more than 80% 7.8 2.9 6.0 8.9 15.4
Male Total 100.0 100.0 100.0 100.0 100.0
less than 20% 17.8 33.9 17.7 10.6 6.0
20%-29% 14.0 18.0 16.7 12.0 8.1
30%-39% 16.9 16.3 18.9 18.5 13.6
40%-49% 13.7 10.6 15.5 15.3 13.5
50%-59% 14.2 9.5 12.7 15.4 20.6
60%-69% 11.0 5.0 8.9 13.4 18.3
70%-79% 6.6 2.8 4.6 8.6 11.6
more than 80% 5.8 4.0 5.1 6.3 8.3


Q77 What percentage of your classmates, your same age and gender, have had sexual intercourse? Would you guess:

Counts

TOTAL Grade
9th 10th 11th 12th
TOTAL 22,913 7,002 6,070 6,380 3,461
less than 20% 3,543 2,021 871 500 151
20%-29% 3,024 1,275 895 623 231
30%-39% 3,636 1,120 1,101 1,044 371
40%-49% 3,053 782 877 974 420
50%-59% 3,369 717 902 1,096 654
60%-69% 2,633 426 619 938 650
70%-79% 1,765 239 393 633 500
more than 80% 1,427 252 306 450 419
Refused/Unknown 463 170 106 122 65
Female Total 11,597 3,632 3,016 3,218 1,731
less than 20% 1,429 908 313 161 47
20%-29% 1,395 671 397 244 83
30%-39% 1,772 606 534 477 155
40%-49% 1,578 440 432 514 192
50%-59% 1,865 425 530 600 310
60%-69% 1,470 248 362 525 335
70%-79% 1,094 149 252 383 310
more than 80% 816 111 161 268 276
Refused/Unknown 178 74 35 46 23
Male Total 11,316 3,370 3,054 3,162 1,730
less than 20% 2,114 1,113 558 339 104
20%-29% 1,629 604 498 379 148
30%-39% 1,864 514 567 567 216
40%-49% 1,475 342 445 460 228
50%-59% 1,504 292 372 496 344
60%-69% 1,163 178 257 413 315
70%-79% 671 90 141 250 190
more than 80% 611 141 145 182 143
Refused/Unknown 285 96 71 76 42