Table 1.
Number of first births, person-years of exposures, and partnership status transitions among the childless population, ages 15 to 44 among women and men, 2000–2018
| All | Women | Men | |
|---|---|---|---|
| Characteristic | (n = 2 125 172) | (n = 993 024) | (n = 1 132 148) |
| First births, number | 740 537 | 379 051 | 361 486 |
| Person-years of follow-up | 19 468 815 | 8 806 785 | 10 662 030 |
| Partnership transitions, number | |||
| Single to single | 12 419 504 | 5 232 453 | 7 187 051 |
| Single to cohabitating | 1 206 555 | 604 671 | 601 884 |
| Single to married | 102 370 | 51 424 | 50 946 |
| Single to first birth & single | 47 249 | 31 398 | 15 851 |
| Single to first birth & union | 86 883 | 40 965 | 45 918 |
| Cohabitating to single | 536 569 | 268 414 | 268 155 |
| Cohabitating to cohabitating | 3 018 824 | 1 532 222 | 1 486 602 |
| Cohabitating to married | 269 197 | 136 150 | 133 047 |
| Cohabitating to first birth | 334 546 | 168 932 | 165 614 |
| Married to single | 47 898 | 24 330 | 23 568 |
| Married to cohabitating | 8 417 | 4 670 | 3 747 |
| Married to married | 1 118 944 | 573 400 | 545 544 |
| Married to first birth | 271 859 | 137 756 | 134 103 |