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1999 YRBS High School Survey

Oregon Youth Risk Behavior Survey (YRBS)
1999 High School

Weighted Column Percents | Counts

Q79 How old were you when you had sexual intercourse for the first time?

Weighted Column Percents

TOTAL Grade
9th 10th 11th 12th
TOTAL 100.0 100.0 100.0 100.0 100.0
I have never had sexual intercourse 63.9 77.3 66.5 58.0 49.8
11 years old or younger 2.0 3.2 2.2 1.3 1.0
12 years old 1.8 2.5 1.6 1.7 1.4
13 years old 3.7 4.5 3.8 3.5 3.0
14 years old 7.2 8.3 7.9 6.2 6.0
15 years old 9.4 4.0 12.8 11.6 9.9
16 years old 7.4 .2 5.2 13.3 12.9
17 years old or older 4.6 .0 .2 4.4 16.1
Female Total 100.0 100.0 100.0 100.0 100.0
I have never had sexual intercourse 63.4 79.1 65.2 56.3 48.0
11 years old or younger 1.2 2.0 1.5 .7 .5
12 years old 1.4 1.8 1.3 1.4 .9
13 years old 3.6 4.5 3.9 3.2 2.7
14 years old 7.7 8.4 8.1 6.9 7.2
15 years old 10.4 4.1 14.2 12.8 11.4
16 years old 7.9 .2 5.5 14.6 13.8
17 years old or older 4.3
.3 4.1 15.5
Male Total 100.0 100.0 100.0 100.0 100.0
I have never had sexual intercourse 64.4 75.4 67.8 59.9 51.5
11 years old or younger 2.8 4.5 2.8 1.9 1.6
12 years old 2.3 3.3 2.0 2.0 1.9
13 years old 3.9 4.6 3.7 3.8 3.2
14 years old 6.6 8.2 7.7 5.5 4.7
15 years old 8.4 3.9 11.3 10.3 8.4
16 years old 6.8 .2 4.8 12.0 11.9
17 years old or older 4.8 .0 .1 4.6 16.7


Q79 How old were you when you had sexual intercourse for the first time?

Counts

TOTAL Grade
9th 10th 11th 12th
TOTAL 22,913 7,002 6,070 6,380 3,461
I have never had sexual intercourse 14,387 5,195 3,897 3,652 1,643
11 years old or younger 458 219 126 78 35
12 years old 438 189 102 107 40
13 years old 887 333 238 212 104
14 years old 1,638 574 469 388 207
15 years old 2,100 280 750 708 362
16 years old 1,607 13 308 824 462
17 years old or older 800 1 13 259 527
Refused/Unknown 598 198 167 152 81
Female Total 11,597 3,632 3,016 3,218 1,731
I have never had sexual intercourse 7,269 2,766 1,912 1,800 791
11 years old or younger 143 73 40 22 8
12 years old 174 73 43 45 13
13 years old 435 166 121 101 47
14 years old 914 317 251 220 126
15 years old 1,195 150 428 397 220
16 years old 861 7 154 456 244
17 years old or older 380
7 123 250
Refused/Unknown 226 80 60 54 32
Male Total 11,316 3,370 3,054 3,162 1,730
I have never had sexual intercourse 7,118 2,429 1,985 1,852 852
11 years old or younger 315 146 86 56 27
12 years old 264 116 59 62 27
13 years old 452 167 117 111 57
14 years old 724 257 218 168 81
15 years old 905 130 322 311 142
16 years old 746 6 154 368 218
17 years old or older 420 1 6 136 277
Refused/Unknown 372 118 107 98 49