Skip to main content

Table 2 Seroprevalence of diphtheria antibody, overall and by age group

From: Seroprevalence of diphtheria toxoid IgG antibodies in the Malaysian population

Age group 4-category classification 2-category classification
No protection (< 0.01 IU/mL) Uncertain protection (0.01–0.099 IU/mL) Immunization protection present (0.1–0.99 IU/mL) Long-term immunization protection (> = 1.0 IU/mL) Susceptible (< 0.1 IU/mL) Protected (> = 0.1 IU/mL)
n
% (95% CI)
n
% (95% CI)
n
% (95% CI)
n
% (95% CI)
n
% (95% CI)
n
% (95% CI)
Children (2–17 years) 8 379 504 125 387 629
0.8 (0.4,1.6) 37.3 (34.4,40.3) 49.6 (46.5,52.7) 12.3 (10.4,14.5) 38.1 (35.2,41.1) 61.9 (58.9,64.8)
Adults (18–60 years) 70 1436 744 51 1506 795
3.0 (2.4,3.8) 62.4 (60.4,64.4) 32.3 (30.5,34.3) 2.2 (1.7,2.9) 65.4 (63.5,67.4) 34.6 (32.6,36.5)
Overall 78 1815 1248 176 1893 1424
2.4 (1.92.9 54.7 (53.0,56.4) 37.6 (36.0,39.3) 5.3 (4.6,6.1) 57.1 (55.4,58.7) 42.9 (41.3,44.6)