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. Author manuscript; available in PMC: 2022 May 15.
Published in final edited form as: Int J Cardiol. 2021 Feb 13;331:214–220. doi: 10.1016/j.ijcard.2021.02.017

Table 1.

Characteristics of the Study Participants by Quartile of Percent Emphysema.

Percent emphysema (−950 HU)
1st Quartile 2nd Quartile 3rd Quartile 4th Quartile
n=79 n=79 n=79 n=78
Demographics
Age, mean ± SD, years 66 ± 7 69 ± 6 68 ± 7 69 ± 7
Male, N (%) 36 (46) 44 (56) 53 (67) 55 (70)
Race/Ethnicity, N (%)
 White 34 (43) 39 (49) 46 (58) 50 (64)
 Chinese 7 (9) 3 (4) 6 (8) 3 (4)
 African-American 24 (30) 22 (28) 17 (21) 20 (26)
 Hispanic 14 (18) 15 (19) 10 (13) 5 (6)
Educational attainment, N (%)
 ≤ High school degree 24 (30) 12 (24) 16 (20) 17 (22)
 Some college/Assoc. degree/Vocational school 25 (32) 20 (25) 27 (34) 20 (26)
 ≥ College degree 30 (38) 40 (51) 36 (45) 41 (52)
Hypertension, N (%) 36 (46) 33 (42) 40 (51) 36 (46)
Diabetes Mellitus, N (%) 12 (15) 12 (15) 11 (14) 10 (13)
Smoking status, N (%)
 Current 29 (37) 19 (24) 19 (24) 21 (27)
 Former 50 (63) 60 (76) 60 (76) 57 (73)
Pack-years of smoking, median [IQR] 32 [20–46] 32 [22–48] 32 [19–51] 33 [20–52]
Characteristics
Height, mean ± SD, cm 165 ± 10 168 ± 10 170 ± 8 171 ± 9
Weight, mean ± SD, kg 78 ± 17 83 ± 18 80 ± 16 78 ± 18
Body mass index, mean ± SD, kg/m2 28 ± 5 29 ± 5 28 ± 5 27 ± 5
Body surface area, mean ± SD, m2 1.8 ± 0.22 1.9 ± 0.23 1.9 ± 0.20 1.9 ± 0.23
Systolic blood pressure, mean ± SD, mmHg 122 ± 17 121 ± 18 121 ± 20 122 ± 15
Diastolic blood pressure, mean ± SD, mmHg 70 ± 10 69 ± 9 69 ± 10 72 ± 8
MAP, mean ± SD, mmHg 87 ± 11 86 ± 10 87 ± 12 89 ± 9
PP, mean ± SD, mmHg 51 ± 15 52 ± 15 52 ± 15 49 ± 13
Labs
Cotinine levels, mean ± SD, mg/dL 133 ± 211 360 ± 2245 88 ± 180 139 ± 647
LDL, mean ± SD, mg/dL 106 ± 31 109 ± 32 110 ± 32 97 ± 31
HDL, mean ± SD, mg/dL 58 ± 20 54 ± 16 58 ± 19 56 ± 18
Triglycerides, mean ± SD, mg/dL 101 ± 44 112 ± 50 109 ± 43 120 ± 84
Cholesterol, median [IQR] 178 [160–205] 182 [159–210] 187 [160–222] 178 [147–196]
Pulmonary function test
FEV1 percent of predicted, mean ± SD 91 ± 17 95 ± 20 92 ± 17 75 ± 25
FVC percent of predicted, mean ± SD 92 ± 13 97 ± 14 101 ± 16 97 ± 18
FEV1/FVC ratio, mean ± SD 0.75 ± 0.09 0.73 ± 0.08 0.69 ± 0.1 0.56 ± 0.14

Definition of abbreviations: FVC = forced vital capacity; FEV1= forced expiratory volume in 1 second; IQR = interquartile range; MAP = Mean Arterial Pressure; Percent emphysema (−950 HU) = percentage of emphysema-like lung at −950 Hounsfield units; PP = Pulse Pressure.