Volume 5, Number 5—October 1999
Dispatch
Diphtheria Antitoxin Levels in the Netherlands: a Population-Based Study
Hester E. de Melker
, G.A.M. Berbers, N.J.D. Nagelkerke, and M.A.E. Conyn-van Spaendonck
, G.A.M. Berbers, N.J.D. Nagelkerke, and M.A.E. Conyn-van Spaendonck
Table 5
Diphtheria immunity in a nationwide sample among persons 20 to 49 years of age, according to sex and military service, the Netherlands
| <0.01 IU/ml | 0.01-0.1 IU/ml | ≥0.1 IU/ml | Geometric mean titer | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Samplea | No. | (95% CIb) | (95% CI) | (95% CI) | (95% CI) | ||||
| M, SH | 425 | 2.9 | (1.2-4.6) | 14.9 | (11.1-18.7) | 82.2 | (78.0-86.5) | 0.30 | (0.25-0.36) |
| M, NSH | 710 | 7.8 | (5.2-10.3) | 33.1 | (28.0-38.1) | 59.2 | (54.0-64.4) | 0.12 | (0.10-0.14) |
| W, NSH | 1,456 | 9.1 | (7.0-11.2) | 32.5 | (29.0-36.0) | 58.4 | (54.5-62.3) | 0.12 | (0.10-0.13) |
aM, men; W, women; SH, service history; NSH, no service history
bCI, confidence interval.
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