Table 1

Allocation of duplicate serum aliquots to assay batches

No. of samplesBatch 1 (August 1997)Batch 2 (December 1997)
Schedule 114Aliquot 1 (14)aAliquot 2 (14)
Schedule 211No measurement (0)Aliquots 1 and 2 (22)
Pooled sera controlsb2Aliquot 1 (2)Aliquot 2 (2)
Total no. of assays1638
  • a No. of measurements (i.e. assays) in parentheses.

  • b Measurements from these controls were not included in the estimation of correlation coefficients and variance components.