Table 1 Characteristics of children with immunoglobulin values examined in various cohorts and cross-sectional samples
Characteristics | Dynamic cohort, 1993-98 n = 617% | Cross-sectional analysis 1997-98 n = 424% | Longitudinal cohort 1997–98 and 2009-10 | Cross-sectional analysis 2008-10 n = 650% | |||
|---|---|---|---|---|---|---|---|
|  | 1997-98 n = 25% | 2008-10 n = 25% |  | ||||
Girls (total) | 51.5 | 50.9 | 52 | 52 | 48.6 | ||
  8 years & younger | 40.6 | 0.5 |  |  | 9.5 | ||
  8-11 years | 42.8 | 44.4 |  |  | 17.1 | ||
  12-17 years | 16.7 | 55.1 |  |  | 61.1 | ||
  >17 years | 0 | 0 |  |  | 12.3 | ||
Boys (total) | 48.5 | 49.1 | 48 | 48 | 51.4 | ||
  8 years & younger | 44.1 | 1.0 |  |  | 7.8 | ||
  8-11 years | 37.1 | 51.4 |  |  | 18.9 | ||
  12-17 years | 18.7 | 47.6 |  |  | 63.8 | ||
  >17 years | 0 | 0 |  |  | 9.6 | ||
Age: median (5%, 95%) | 8 (3, 14) | 12 (8, 16) | 11 (8, 14) | 22 (19, 26) | 14 (5, 22) | ||
Residential 137Cs exposure (kBq/m2) | Mean, (kBq/m2) | % | Â | Â | Â | Mean, (kBq/m2) | % |
  <116 | 90.8 | 17.5 | 19.1 | 16.0 | 32.0 | 80.0 | 22.5 |
  116 - 164 | 128.4 | 18.0 | 16.5 | 20.0 | 16.0 | 131.2 | 10.6 |
  165 - 265 | 196.7 | 20.1 | 19.1 | 20.0 | 52.0 | 247.3 | 66.8 |
  266 - 349 | 308.9 | 6.7 | 5.7 | 8.0 | 0 | NA | 0.2 |
  ≥350 | 354.9 | 37.8 | 39.6 | 36.0 | 0 | NA | 0 |
Residential 137Cs exposure, median (5%, 95%), kBq/m2 | 210 (79, 364) | 224 (79, 364) | 224 (112, 364) | 171 (60, 253) | 253 (60, 264) | ||