Research Article

IgA-Type Enterovirus Antibodies Are Increased among Adults and Children with Recently Diagnosed Type 1 Diabetes

Table 3

Prevalence of IgA, IgG, and IgM antibodies to enteroviruses (EV) in the study population by the different age groups.

Age groupsControlT1D valueAll
% (95% CI)% (95% CI)% (95% CI)

IgA EV antibodies
0–18.9 y5/3613.9 (5.2–30.3)16/3644.4 (28.3–61.7)0.009821/7229.2 (19.3–41.2)
19–35.9 y2/267.7 (1.3–26.6)13/2650.0 (32.1–67.9)0.005515/5228.8 (17.5–43.3)
IgG EV antibodies
0–18.9 y18/3650.0 (34.5–65.5)15/3641.7 (26.0–59.1)NS33/7245.8 (34.1–57.9)
19–35.9 y11/2642.3 (24.0–62.8)15/2657.7 (37.2–76.0)NS26/5250.0 (36.9–63.1)
IgM EV antibodies
0–18.9 y1/362.8 (0.1–16.2)2/365.6 (9.7–20.0)NS3/724.2 (1.1–12.5)
19–35.9 y0/261/263.8 (0.2–21.6)NS1/521.9 (0.1–11.6)

Data are presented as the number of EV antibody-positive persons and percentage with the 95% confidence interval (CI) in a row. Cochran-Mantel-Haenszel test, matched for gender, age, and HLA-DR/DQ genotype risk groups for type 1 diabetes (T1D). values ≤ 0.05 are in bold. NS: not significant.