Aim 2: Assess the incidence of, and risk factors for, serious acute complications of
diabetes including severe hypoglycemia and diabetic ketoacidosis (DKA).
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Research Question 2.1: Does the incidence of serious acute complications differ
according to biochemical dimensions of diabetes type (autoimmunity, insulin
sensitivity score, residual insulin secretion), glycemic control or diabetes treatment
regimen?
Research Question 2.2: Does the incidence of serious acute complications differ
according to race/ethnicity or other socio-cultural factors (e.g., family structure,
household income, or parental education)?
Aim 3: Determine the degree to which barriers to care, quality of care, and the process
of transition from pediatric to adult health care impact disease factors, including
dimensions of diabetes type, and diabetes-related outcomes (acute and chronic
complications, quality of life, diabetes-related mortality).
Research Question 3.1: Do specific barriers to care and quality of care assessed early
in the course of their diabetes effect a) the evolution of key dimensions of diabetes
type; b) metabolic status (e.g., A1c, lipid profile, weight status); c) markers of acute
and chronic complications of diabetes; or d) quality of life?
Research Question 3.2: Do specific barriers to care and quality of care explain
differences in health outcomes experienced by minority youth, compared to their non-
Hispanic white counterparts with the same type of diabetes (T1D or T2D)? Health
outcomes will include dimensions of diabetes type, metabolic status, markers of acute
and chronic complications, quality of life, and mortality.
Research Question 3.3: What are the specific barriers to care that emerge as youth
with diabetes move into early adulthood (e.g., loss of or change in insurance; change
in health care provider)? Do these barriers affect metabolic status and co-
morbidities? Are these barriers more common among persons of minority
race/ethnicity compared to NHW individuals, independent of other socio-cultural
factors (e.g., family structure, household income, or parental education)?
Aim 4: Maintain and supplement the SEARCH repository for biological specimens, and
promote access to SEARCH for conduct of scientifically and logistically
appropriate ancillary studies.
4.1.2.
Research Strategy
The SEARCH Cohort Study is a highly interdisciplinary effort, inclusive of experts in
diabetes-related physiology and epidemiology, clinical researchers, and health services
researchers. Together, we have developed a conceptual framework to ensure realization
of our overarching vision to improve the health and well-being of individuals diagnosed
with diabetes in youth. Our framework is shown Figure 3, in which socio-cultural
factors, biological risk factors and mediators including health care access and quality
together drive diabetes-related health outcomes. The core content of the present
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application was assembled collaboratively by the SEARCH team, and represents the
scientific accomplishments and vision for the SEARCH Cohort Study, by consensus of
all current SEARCH centers and central units.
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