Table 2

Distribution of IgA levels among age groups

AgeTotalAbsent IgA (% of total)Low IgA (% of total)Normal IgA (% of total)
6–8 months1114 (3.6%)19 (17.1%)88 (79.3%)
9–11 months1720 (0.0%)41 (23.8%)131 (76.2%)
1–2 years10018 (0.8%)155 (15.5%)838 (83.7%)
3–5 years132212 (0.9%)82 (6.2%)1228 (92.9%)
6–8 years136114 (1.0%)76 (5.6%)1271 (93.4%)
9–11 years160012 (0.8%)168 (10.5%)1420 (88.8%)
12–17 years386236 (0.9%)332 (8.6%)3494 (90.5%)
Total942986 (0.9%)873 (9.3%)8470 (89.8%)
  • IgA, immunoglobulin A.