Older mothers and non-Hispanic black mothers have higher rates
of maternal morbidity, but this reflects, to some extent, their higher
cesarean rates. However, these groups generally have higher morbidity,
even when other relevant factors are considered (9). Although
rates could not be computed for some groups due to insufficient cases,
the elevated morbidity for cesarean compared with vaginal deliveries
was generally found in all age groups and for all racial and ethnic
groups.