| Value | Category | Cases | |
|---|---|---|---|
| 0 | Biological mother or no mother present | 172319 |
95.6%
|
| 1 | Mother has no children borne or surviving | 1738 |
1%
|
| 2 | Child reports mother is deceased | 2389 |
1.3%
|
| 3 | Explicitly identified step relationship | 0 |
0%
|
| 4 | Mother reports no children in the home | 1278 |
0.7%
|
| 5 | Age difference implausible | 574 |
0.3%
|
| 6 | Child exceeds known fertility of mother | 1910 |
1.1%
|