Table 6. Seroprevalence of the rubella antibody in new female nurses.
| Variables | No. | Positive | Equivocal | Negative | p-valuea | |
|---|---|---|---|---|---|---|
| All | 3,711 | 3,093 (83.4) | 479 (12.9) | 139 (3.7) | ||
| Age (years) | 0.691 | |||||
| > 20, ≤ 25 | 2,987 | 2,495 (83.5) | 382 (12.8) | 110 (3.7) | ||
| > 25, ≤ 30 | 563 | 470 (83.5) | 70 (12.4) | 23 (4.1) | ||
| > 30, ≤ 35 | 144 | 115 (79.8) | 23 (16.0) | 6 (4.2) | ||
| > 35, ≤ 40 | 17 | 13 (76.5) | 4 (23.5) | 0 (0.0) | ||
| Birth year | < 0.001 | |||||
| 1995–1999 | 763 | 600 (78.6) | 118 (15.5) | 45 (5.9) | ||
| 1990–1994 | 1,889 | 1,602 (84.8) | 229 (12.1) | 58 (3.1) | ||
| 1985–1989 | 763 | 669 (87.7) | 80 (10.5) | 14 (1.8) | ||
| 1980–1984 | 296 | 222 (75.0) | 52 (17.6) | 22 (7.4) | ||
Values are presented as numbers (%).
aComparison performed using the χ2 test or linear-by-linear association.