Another reason the denominator is important is that "parents" are (hopefully) completely a subset of "adults". And not all adults have living parents. So who is counted:
- All adults
- Adults with living parents
- Adults within an age range
- Adults without children
or what? This really belongs in the title. Without it, as you say, the statistic is meaningless.
Another reason the denominator is important is that "parents" are (hopefully) completely a subset of "adults". And not all adults have living parents. So who is counted:
or what? This really belongs in the title. Without it, as you say, the statistic is meaningless.