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Table 2 Fractional nitric oxide (FeNO) measurements over time

From: Exhaled nitric oxide is not a biomarker for idiopathic pulmonary arterial hypertension or for treatment efficacy

Time

Mean (ppb)

Max

Min

SD

P value

Start of study

5.5

9

2

1.8

 

After 3 months

6.5

16

2

2.3

0.272

Healthy subjects

8.1

20

5

4.1

0.632

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BMC Pulmonary Medicine

ISSN: 1471-2466

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