Table 1 State-based estimates of measles immunity amongst young adults in Victoria before (1999) and after (2002) the young adult measles immunisation program
Measles vaccine | Birth cohort | Age 1999 (years) | N | Percent immune (95% CI) | Age 2002 (years) | N | Percent immune (95% CI) | p-value 1999 vs 2002 |
|---|---|---|---|---|---|---|---|---|
Licensed 1968 | 1968–1973 | 26–31 | 120 | 89.2 (82.2–94.1) | 29–34 | 112 | 91.1 (84.2–95.6) | 0.79 |
Scheduled at age 12 months in 1975, until 1983 when measles-mumps vaccine was introduced | 1974–1982 | 17–25 | 191 | 80.6 (74.3–86.0) | 20–28 | 170 | 81.8 (75.1–87.3) | 0.67 |
Total | 1968–1982 | 17–31 | 311 | 83.9 (79.4–87.8) | 20–34 | 282 | 85.5 (80.8–89.4) | 0.65 |