Maternal background statistics, includes all live Singleton Danish Births by Bereavement Status from 1995–2006*
| Total cohort N=975580 | Exposed N= 24596 | Unexposed N=9509 | ||||
|---|---|---|---|---|---|---|
| N | (%) | N | (%) | N | (%) | |
| Maternal age | ||||||
| <18 | 11368 | 1.2 | 96 | 0.4 | 11272 | 1.2 |
| 19–34 | 816341 | 83.7 | 18760 | 76.3 | 797581 | 83.9 |
| 35–40 | 136300 | 14.0 | 5243 | 21.3 | 131057 | 13.8 |
| 41 + | 11571 | 1.2 | 497 | 2.0 | 11074 | 1.2 |
| Household income | ||||||
| 1st quartile | 13036 | 1.3 | 83 | 0.3 | 12953 | 1.4 |
| 2nd quartile | 320350 | 32.8 | 7319 | 29.8 | 313031 | 32.9 |
| 3rd quartile | 363200 | 37.2 | 10173 | 41.4 | 353027 | 37.1 |
| 4th quartile | 235639 | 24.2 | 6797 | 27.6 | 228842 | 24.1 |
| Maternal education | ||||||
| Primary | 246371 | 25.6 | 6087 | 24.8 | 240284 | 25.3 |
| Secondary | 304559 | 32.1 | 8552 | 34.8 | 296007 | 31.1 |
| High | 365813 | 40.3 | 9607 | 39.1 | 356206 | 37.5 |
| Cohabitation status | ||||||
| Cohabit | 384306 | 39.4 | 10246 | 41.7 | 374060 | 39.3 |
| Do not cohabit | 547929 | 56.2 | 14127 | 57.4 | 533802 | 56.1 |
| Child's sex | ||||||
| Male | 500174 | 51.3 | 12545 | 51.0 | 487629 | 51.3 |
| Female | 475391 | 48.7 | 12051 | 49.0 | 463340 | 48.7 |
| Maternal residence | ||||||
| Copenhagen | 251409 | 25.8 | 6039 | 24.6 | 245370 | 25.8 |
| Big cities* | 117304 | 12.0 | 2851 | 11.6 | 114453 | 12.0 |
| Other | 563522 | 57.8 | 15483 | 63.0 | 548039 | 57.6 |
| Birth weight (g) | ||||||
| <1500 | 65093 | 6.7 | 891 | 3.6 | 64202 | 6.8 |
| 1500–2500 | 39129 | 4.0 | 1201 | 4.9 | 37928 | 4.0 |
| >2500 | 871358 | 89.3 | 22504 | 91.5 | 848854 | 89.3 |
| Gestational age (weeks) | ||||||
| <34 | 64313 | 6.6 | 840 | 3.4 | 63473 | 6.7 |
| 34–36 | 43012 | 4.4 | 1290 | 5.2 | 41722 | 4.4 |
| >37 | 868255 | 89.0 | 22466 | 91.3 | 845789 | 88.9 |
*Maternal age, household income, maternal education, cohabitation status and maternal residence are from the time of birth. Missing values: household income=43 355 (4.4%), maternal education=58 837 (6%), sex=15, cohabitation status & residence=43 345 (4.4%).