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Table 2 Number of participants submitting adequately filled spots and blood spots allowing at least one punch for analysis

From: Feasibility of self-sampled dried blood spot and saliva samples sent by mail in a population-based study

Number of blood spots

Number of participants with adequately filled blood spots

Number of participants with blood spots allowing at least one punch1

10

2,418

2,655

≥9

2,521

2,729

≥8

2,613

2,796

≥7

2,692

2,850

≥6

2,750

2,896

≥5

2,834

2,964

≥4

2,871

2,988

≥3

2,906

3,011

≥2

2,938

3,026

≥1

2,960

3,032

  1. 1a punch is 3.2 mm in diameter and would provide 3.1 μl of blood.