Table 2 Characteristics of external quality assessment results submitted by each distribution

Panels shipped

55

53

56

Participants submitting results^a

41 (75%)

37 (70%)

45 (80%)

Number of laboratories which processed

 Lyophilized blood

40 (98%)

35 (95%)

43 (96%)

 Dried blood spots

32 (78%)

30 (81%)

36 (80%)

Number of samples submitted:

 Lyophilized blood

200

174

214

 Dried blood spots

159

150

180

Total

359

324

394