Table 1 shows that older patients had
significantly lower HbA1c levels and
higher insulin use than younger patients
and that there were differences in HbA1c
and insulin use by racial/ethnic group.
Caucasian and mixed/undefined patients
had lower HbA1c levels than African-
American or Hispanic/other patients; Af-
rican-American patients had lower levels
of insulin use than all other patients.
Among patients taking both an OHA and
insulin, use of an OHA (84.89 16%)
was significantly higher than insulin use,
even with inflation due to insulin wastage
(P 0.0001). Insulin use was not signif-
icantly different among groups taking in-
sulin alone or insulin with at least one
OHA