Table 4.

Correlation of smoking variables with the blood pressure of smokers (SBP, DBP, MAP)

Parameters	SBP		DBP		MAP
	R value	P value	R value	P value	R value	P value
Smoking duration (years)	0.251	<0.001†	0.234	<0.001†	0.216	<0.001†
Brinkman Index	0.175	0.001*	0.139	0.011*	0.146	0.007*
BMI (kg/m2)	0.188	0.001*	0.369	<0.001†	0.324	<0.001†
FeNO (ppb)	−0.133	0.015*	−0.37	0.498	−0.075	0.173
eCO ppm	0.043	0.432	−0.03	0.504	0.001	0.989

Spearman correlation.

*p<0.05.

†p<0.001.

BMI, body mass index; DBP, diastolic blood pressure; eCO, exhaled breath carbon monoxide; FeNO, fractional exhaled nitric oxide; MAP, mean arterial pressure; SBP, systolic blood pressure.