Table 1. Baseline Characteristics:.

	All	No PH	PH
	(n=3282) Mean ± SD	(n=3059) Mean ± SD	(n=223) Mean ± SD	p-value*
Age	56.1 ± 12.6	55.4 ± 12.6	65.4 ± 9.4	<0.0001
Male	32.5%	33.2%	22.9%	0.002
BMI Category
Normal	15.2%	15.6%	10.3%
Overweight	33.7%	34.1%	28.2%
Obese	51.0%	50.3%	61.4%	0.004
Systolic BP (mm Hg)	126.5 ± 18.2	125.9 ± 17.9	133.9 ± 21.4	<0.0001
Diastolic BP (mm Hg)	78.2 ± 10.4	78.4 ± 10.4	75.6 ± 10.7	0.0001
Pulse Pressure (mm Hg)	48.3 ± 15.8	47.5 ± 15.3	58.3 ± 18.9	<0.0001
Hypertension	60.9%	59.4%	82.1%	<0.0001
Diabetes	24.6%	23.2%	42.6%	<0.0001
Coronary Heart Disease	8.3%	7.9%	13.9%	0.002
Severe Mitral/ Aortic Valvular disease	0.2%	0.1%	1.8%	<0.0001
Chronic Lung Disease	7.0%	6.5%	13.9%	<0.0001
Smoking History
Never Smoked	68.1%	68.3%	64.9%
Former Smoker	19.8%	19.6%	23.4%
Current Smoker	12.1%	12.1%	11.7%	0.376
FEV1 % predicted	91.7 ± 18.2	92.4 ± 17.7	82.2 ± 21.8	<0.0001
FVC % predicted	91.0 ± 18.6	91.5 ± 18.1	84.7 ± 23.8	<0.0001
FEV1/FVC	80.2 ± 9.3	80.5 ± 9.1	76.4 ± 10.9	<0.0001
Spirometry Profile:
Normal	69.6%	70.9%	50.2%
Obstruction	9.5%	8.9%	18.2%
Restriction	21.0%	20.2%	31.5%	<0.001

^* Comparison between PH and no PH groups.