Age at first sex | | | | | | | | | |
Had sex before age 15 | 15–19 | – | 5.5 | 5.2 | 4.5 | – | 8.8 | 6.6 | 4.6 |
years | | | 4.5 to 6.5* | 3.6 to 6.9 | 2.8 to 6.2 | | 7.5 to 10.0 | 4.7 to 8.5 | 2.5 to 6.8 |
| | | 2072† | 707 | 558 | | 2054 | 656 | 366 |
Had sex before age 20 | 20–24 | – | 6.2 | 5.9 | 5.7 | – | 5.6 | 6.3 | 5.8 |
years | | | 5.9 to 6.4 | 5.5 to 6.4 | 5.2 to 6.1 | | 5.3 to 5.9 | 5.9 to 6.7 | 5.4 to 6.2 |
| | | 1548 | 474 | 532 | | 1311 | 598 | 639 |
Non-regular sexual partners | | | | | | | | | |
More than one non-regular | 15–29 | – | – | 17.2 | 8.2 | – | – | 32.2 | 21.3 |
partner in past 12 months | | | | 14.6 to 19.8 | 7.1 to 9.3 | | | 29.5 to 36.0 | 19.1 to 23.5 |
| | | | 137 | 75 | | | 358 | 200 |
Condom use with non-regular partners | | | | | | | | | |
Condom use at last sex with | 15–29 | 62.4 | 45.1 | 79.2 | 83.3 | 73.6 | 63.4 | 81.5 | 85.9 |
a non-regular partner | | 52.5 to 72.3 | 41.7 to 48.6 | 72.4 to 86.0 | 74.5 to 92.1 | 66.9 to 80.3 | 61.2 to 65.7 | 77.5 to 85.5 | 81.0 to 90.8 |
| | 92 | 802 | 137 | 75 | 168 | 1776 | 358 | 200 |