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Table 2 Importance and consensus on biochemical validation methods (R2: n = 48, R3: n = 37)

From: Exploring consensus on how to measure smoking cessation. A Delphi study

Factors

R2: Mdn

R2: IQR

R3: Mdn

R3: IQR

Anabasine, using urine samples

4.00

2.00

4.00

2.00

Carbon monoxidea

6.00

3.00

6.00

1.00

The assessment method to detect carbon monoxide:

    

 • Expired air samplesa

6.00

2.00

6.00

1.00

 • Blood samples

4.00

3.00

4.00

1.00

Cotininea

6.00

1.00

 • Saliva samplesa

6.00

1.00

 • Urine samples

5.00

2.00

5.00

1.00

 • Blood samples

4.00

2.00

4.00

0.00

 • Hair samples

4.00

2.00

4.00

1.00

 • Plasma samples

4.00

2.00

4.00

1.00

 • Serum samples

4.00

1.00

Thiocyanate

4.00

2.00

4.00

1.00

The assessment method to detect thiocyanate:

  

4.00

1.00

 • Plasma samples

4.00

1.00

 • Saliva samples

4.00

1.00

 • Urine samples

4.00

2.00

4.00

0.00

  1. Mdn median score, IQR interquartile range
  2. a = Consensus (IQRs ≤1) on important items (Mdn ≥ 6)