Lack of Association between Interarm Systolic Blood Pressure Difference and Coronary Artery Disease in Patients Undergoing Elective Coronary Angiography
Table 1
Frequency distribution of the demographic variables in terms of IASBPD of less and more than 10 mmHg.
Demographic variables
All (n = 578)
IASBPD† <10 mmHg (n = 527)
IASBPD ≥10 mmHg (n = 51)
-value
Sex, n (%)
Male
333 (57.6)
309 (92.8)
24 (7.2)
0.110
Female
245 (42.4)
218 (89.0)
27 (11.0)
Smoking, n (%)
Yes
144 (24.9)
135 (93.8)
9 (6.3)
0.209
No
434 (75.1)
392 (90.3)
42 (9.7)
Hypertension, n (%)
Yes
277 (47.9)
247 (89.2)
30 (10.8)
0.103
No
301 (52.1)
280 (93.0)
21 (7.0)
Hyperlipidemia, n (%)
Yes
186 (32.2)
169 (90.9)
17 (9.1)
0.854
No
392 (67.8)
358 (91.3)
34 (8.7)
Diabetes mellitus, n (%)
Yes
135 (23.4)
121 (89.6)
14 (10.4)
0.469
No
443 (76.6)
406 (91.6)
37 (8.4)
Myocardial infarction, n (%)
Yes
141 (24.4)
132 (93.6)
9 (6.4)
0.240
No
437 (75.6)
395 (90.4)
42 (9.6)
Cerebrovascular accident, n (%)
Yes
27 (4.7)
26 (96.3)
1 (3.7)
0.337
No
551 (95.3)
501 (90.9)
50 (9.1)
Peripheral vein diseases, n (%)
Yes
24 (4.2)
21 (87.5)
3 (12.5)
0.517
No
554 (95.8)
506 (91.3)
48 (8.7)
Age, (yrs)
<50
128 (22.1)
120 (93.8)
8 (6.3)
0.245
≥50
450 (77.9)
407 (90.5)
43 (9.6)
Body mass index (kg/m2)
<30
422 (73.0)
393 (93.1)
29 (6.9)
0.007
≥30
156 (27.0)
134 (85.9)
22 (14.1)
LASBP‡ (mmHg)
<140
380 (65.7)
357 (93.9)
23 (6.1)
0.001
≥140
198 (34.3)
170 (85.9)
28 (14.1)
RASBP‡‡ (mmHg)
<140
393 (68.0)
362 (92.1)
31 (7.9)
0.248
≥140
185 (32.0)
165 (89.2)
20 (10.8)
†interarm systolic blood pressure difference, ‡ left arms systolic blood pressure, ‡‡ right arms systolic blood pressure.
