Results of Multivariate Poisson Regression Modeling of Medicaid Enrollment Gap Incidence on Caregiver and Child Characteristics, among the COHL Study Follow-up Cohort in North Carolina, during the Study Period (A) and Using all Available Medicaid History (B) between January 2004 and December 2010.

Note. NVS = Newest Vital Sign; COHL = Carolina Oral Health Literacy; IRR = Incidence Rate Ratio; CI = Confidence Interval. The sample size was n = 1208.
aVariable selection was based on a backward hierarchical procedure starting from a full model and a P<.2 criterion; caregivers’ race, age and general health were included a priori in the models; time at risk for a gap was considered time (months) of Medicaid enrollment.
bDefined as NVS score: 0–1.
cDefined as NVS score: 2–6.
Results of Multivariate Poisson Regression Modeling of Medicaid Enrollment Gap Incidence on Caregiver and Child Characteristics, among the COHL Study Follow-up Cohort in North Carolina, during the Study Period (A) and Using all Available Medicaid History (B) between January 2004 and December 2010.