Table 2. Seroprevalence of the measles antibody in new female nurses.
| Variables | No. | Positive | Equivocal | Negative | p-valuea | |
|---|---|---|---|---|---|---|
| All | 587 | 551 (93.9) | 21 (3.6) | 15 (2.5) | ||
| Age (years) | < 0.001 | |||||
| > 20, ≤ 25 | 177 | 158 (89.3) | 8 (4.5) | 11 (6.2) | ||
| > 25, ≤ 30 | 235 | 222 (94.5) | 9 (3.8) | 4 (1.7) | ||
| > 30, ≤ 35 | 101 | 99 (98.0) | 2 (2.0) | 0 (0.0) | ||
| > 35, ≤ 40 | 74 | 72 (97.3) | 2 (2.7) | 0 (0.0) | ||
| Birth year | 0.009 | |||||
| 1995–1999 | 78 | 73 (90.1) | 3 (3.7) | 5 (6.2) | ||
| 1990–1994 | 267 | 249 (93.2) | 9 (3.4) | 9 (3.4) | ||
| 1985–1989 | 145 | 138 (95.2) | 6 (4.1) | 1 (0.7) | ||
| 1980–1984 | 94 | 91 (96.8) | 3 (3.2) | 0 (0.0) | ||
Values are presented as numbers (%).
aComparison performed using the χ2 test or linear-by-linear association.