- Distribution of serological status for mumps IgG antibodies by age (N=429).
| Serological status | <20 years | 21-30 years | >31 years | P-value | |||
|---|---|---|---|---|---|---|---|
| n (%) | 95% CI | n (%) | 95% CI | n (%) | 95% CI | ||
| Positive | 36 (87.8) | 84.7-90.8 | 134 (78.4) | 74.5 - 82.3 | 169 (77.9) | 74.0 - 81.8 | 0.247 |
| Equivocal | 3 (7.3) | 4.8-9.8 | 17 (9.9) | 7.1 - 12.7 | 14 (6.5) | 4.2 - 8.8 | |
| Negative | 2 (4.9) | 2.9-6.9 | 20 (11.7) | 8.7 - 14.7 | 34 (15.7) | 12.3 - 19.1 | |