From: Inadequate prenatal care and its association with adverse pregnancy outcomes: A comparison of indices
Index
Maternal Age (years)
Parity
<20
20–34
35 +
1st birth
2nd-3rd birth
≥4th birth
APNCU Index
   % inadequate/no care
21.1
7.5
4.3
6.2
24.3
R-GINDEX
21.6
8.2
4.8
8.4
26.4