Table 1 Clinical characteristic of subjects in the RA outpatient population, non-RA outpatient population and the general population (NHANES)
From: Association between inflammation and systolic blood pressure in RA compared to patients without RA
Characteristic | Outpatient population N = 24,325 | NHANES* N = 5561 | |
|---|---|---|---|
RA N = 1811 | Non-RA N = 22,514 | ||
Age, years, mean (SD) | 60.39 (13.97) | 54.00 (15.55) | 47.88 (18.49) |
Female (%) | 80.18 | 61.03 | 50.46 |
Ethnicity (%) | |||
 Non-Hispanic white | 80.51 | 80.40 | 48.48 |
 Non-Hispanic black | 5.63 | 5.46 | 16.90 |
 Others | 13.86 | 14.14 | 34.62 |
Anti-hypertensive medication use (%) | 23.47 | 25.38 | 30.30 |
Statin medication use (%) | 10.38 | 12.92 | 17.59 |
CRP, mg/L, median (IQR) | 3.40 (1.40, 9.00) | 2.20 (0.90, 5.80) | 0.18 (0.07, 0.43) |
SBP, mmHg, mean (SD) | 129.92 (17.12) | 126.48 (16.81) | 122.14 (18.26) |
DBP, mmHg, mean (SD) | 75.62 (11.47) | 76.07 (15.66) | 69.30 (11.92) |
PP, mmHg, mean (SD) | 54.30 (14.57) | 50.41 (17.94) | 52.83 (17.51) |
MAP, mmHg, mean (SD) | 93.72 (11.76) | 92.87 (13.65) | 86.91 (11.74) |