Table 4.

Odds Ratios (OR) and 99% Confidence Interval (CI) of 7-Vaccine Series Non-Completion by Age 19 Months in the Derivation and Validation Cohorts

	Derivation Cohort (N = 6053) OR (99% CI)		Validation Cohort (N = 3027) OR (99% CI)
Risk levela	Unadjusted	Adjusted	Unadjusted	Adjusted
Low	Ref	Ref	Ref	Ref
Medium	1.8 (1.5, 2.0)	1.9 (1.6, 2.2)	1.9 (1.5, 2.3)	1.9 (1.5, 2.4)
High	5.3 (4.0, 6.9)	5.6 (4.2, 7.4)	5.5 (3.8, 8.1)	5.5 (3.7, 8.2)

^aLow (0-2 risk score), medium (3-4 risk score), and high (5-7 risk score).