Long-term dyspnea, regional ventilation distribution and peripheral lung function in COVID-19 survivors: a 1 year follow up study

Table 4 Comparison of FENO data in patients with and without dyspnea

	No Dyspnea (n = 18)	Dyspnea (n = 15)	Overall population (n = 33)	P value
FENO₅₀ (ppb)	15[9–21]	16[7–29]	16[9–23]	0.40
FENO₁₀₀ (ppb)	12[9–15]	14.5[12–20]	13[9–16]	0.17
FENO₁₅₀ (ppb)	8[6.7–11]	9[8.5–19]	9[7–12]	0.18
Calv	4.4 [2.8–10.5]	4.9[3.7–15.8]	4.5 [3.2–10.1]	0.6
Jaw	36 [16.5–54.3]	41 [22–104.8]	38 [19–64]	0.34

FENO50 = expired NO at 50 ml/sec. FENO100 = expired NO at 100 ml/sec. FENO150 = expired NO at 150 ml/sec

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