Table 3.

Level of nitric oxide exhaled from the lungs, depending on the time of the test

Parameter		Nitric oxide exhaled from the lungs before the nasal challenge test	Nitric oxide exhaled from the lungs in the 30th min	Nitric oxide exhaled from the lungs in the 4th h
Mean	Patient	22.17	22.5	23.13
	Healthy subject	18.97	17.53	17.73
Standard deviation	Patient	9.896	12.367	12.428
	Healthy subject	6.327	7.094	7.287
Standard error of the mean	Patient	1.807	2.258	2.269
	Healthy subject	1.155	1.295	1.33
Bilateral significance	Patient	0.14	0.061	0.045
	Healthy subject	–	–	–