Nomograms for Predicting Coexisting Cardiovascular Disease and Prognosis in Chronic Obstructive Pulmonary Disease: A Study Based on NHANES Data
Table 1
Baseline demographic characteristics of the included participants.
Variables
COPD group (n = 391)
COPD + CVD group (n = 149)
P
Follow-up time, months
91.00 [72.00, 104.00]
79.00 [51.00, 100.00]
<0.001
Gender
Male, n (%)
155 (39.6)
97 (65.1)
<0.001
Female, n (%)
236 (60.4)
52 (34.9)
Age, years
61.00 [50.00, 72.00]
67.00 [60.00, 76.00]
<0.001
SBP, mmHg
126.00 [116.00, 142.00]
128.00 [116.00, 144.00]
0.713
DBP, mmHg
70.00 [62.00, 76.00]
70.00 [60.00, 78.00]
0.544
BMI, kg/m2
28.52 [24.34, 34.05]
29.90 [26.14, 35.49]
0.033
Smoke
Never-smoker, n (%)
116 (29.7)
34 (22.8)
0.121
Ex-smoker, n (%)
148 (37.9)
70 (47.0)
Current-smoker, n (%)
127 (32.5)
45 (30.2)
SBP, systolic blood pressure; DBP, diastolic blood pressure; BMI, body mass index; IQR, interquartile range. Values were presented as median [interquartile range (IQR)] or n (%).
