Table 3.

Vital signs and markers of airway inflammation. Pre- and post-use of an e-cigarette

	Nicotine=11mg				Nicotine=0mg
	COPD smokers (n=16)	Asthma smokers (n=11)	Smokers (n=28)	Non smokers (n=9)	Non smokers (n=12)
SpO2
Pre	96.4±1.9	97.2±1.53	98.2±1	97.4±2.1	98.4±0.9
Post	95.8±1.8*	96.6±1.36	97.1±1.5**	97±0.7	98.4±0.5
HR
pre	76.0±11.2	84.9±14.2	75.2±9.8	79.1±13.8	80.4±9.3
Post	79.4±13.7	93.5±15.1*	92.1±16.9**	92.2±17.4*	78.8±9.0
eNO
Pre	12.7±6.4	12.1±4.8	11.7±10.2	16.0±4.5	13.3±8.3
Post	11.7±8.2	10.6±4.6	10.7±10.2	14.7±4.6	10.8±6.5
Air Temp
Pre	33.8±0.9	33.4±1.1	33.7±1.5	34±1.5	33.1±2.0
Post	34.2±1.5	33.5±1.2	34.1±0.7	33.9±1.9	32.7±3.1

Values are expressed as mean ±SD

p values: Comparison of pre and post smoking a single e-cigarette

^*p<0.05,

^**p<0.001

SpO₂: Oxygen Saturation, HR: Heart Rate, eNO: exhaled Nitric Oxide, Air Temp: Airways Temperature