Table 1. Numbers (%) of healthcare workers positive for anti-measles IgG antibodies by age group.
| Age, years (birth year) | 20 – 24a (1994 – 1998) | 25 – 29a (1989 – 1993) | 30 – 34 (1984 – 1988) | 35 – 39 (1979 – 1983) | 40 – 44 (1974 – 1978) | 45 – 49 (1969 – 1973) | 50 – 54 (1964 – 1968) | 55 – 59 (1959 – 1963) | ≥60 (≤1958) | Total |
|---|---|---|---|---|---|---|---|---|---|---|
| Hospital A | 154 (95.7) | 299 (94.6) | 230 (97.9) | 183 (95.3) | 163 (98.2) | 190 (99.5) | 77 (100) | 47 (100) | 12 (100) | 1,355 (97.0) |
| Hospital B | 179 (71.9) | 353 (86.5) | 175 (96.2) | 131 (92.9) | 145 (96.0) | 124 (96.9) | 104 (100) | 51 (100) | 19 (100) | 1,281 (89.4) |
| Total | 333 (81.2) | 652 (90.1) | 405 (97.1) | 314 (94.3) | 308 (97.2) | 314 (98.4) | 181 (100) | 98 (100) | 31 (100) | 2,636 (93.1) |
aP <0.001 between hospital A and B.
IgG, immunoglobulin G.