Research Article
Immunization Milestones: A More Comprehensive Picture of Age-Appropriate Vaccination
Table 3
Population Size and Exclusions.
| OHP children in ALERT: | 20,411 |
| Exclusions (in order applied) | |
| Not born in Oregon | 1,004 | 180 days of enrollment by age 2 | 1,123 | 365 days of enrollment by age 2 | 583 | Not enrolled within 30 days of birth | 345 | Not enrolled after 1 year of age | 2,884 | Not enrolled through 15–18-month period | 1,009 | No immunizations reported post birth | 264 |
| Total exclusions | 7,212 |
| Total study population | 13,199 |
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OHP is the Oregon Health Plan ALERT is the ALERT Immunization Information System.
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