Table 1 Comparison of demographic and clinical characteristics in study subjects
Parameter | Healthy control | Obstructive CAD | pvaluea | ||
|---|---|---|---|---|---|
Total | 720 | 293 | Â | ||
Age (yrs) | Â | Â | Â | Â | Â |
   ≤ 40 | 30 | (4.2) | 10 | (3.4) | 0.063 |
   41-60 | 321 | (44.6) | 109 | (37.2) |  |
   > 60 | 369 | (51.2) | 174 | (59.4) |  |
Educational levels | Â | Â | Â | Â | < 0.001 |
   < High school | 131 | (18.2) | 89 | (30.4) |  |
   High school | 312 | (43.3) | 123 | (42.0) |  |
   > High school | 277 | (38.5) | 81 | (27.6) |  |
BMI | Â | Â | Â | Â | < 0.001 |
   ≤ 18.5 | 19 | (2.6) | 5 | (1.7) |  |
   18.5-27 | 591 | (82.1) | 197 | (67.2) |  |
   > 27 | 110 | (15.3) | 91 | (31.1) |  |
DM | Â | Â | Â | Â | < 0.001 |
   No | 638 | (88.6) | 178 | (60.8) |  |
   Yes | 82 | (11.4) | 115 | (39.2) |  |
HTN | Â | Â | Â | Â | < 0.001 |
   No | 576 | (80.0) | 74 | (25.3) |  |
   Yes | 144 | (20.0) | 219 | (74.7) |  |
Dyslipidemia | Â | Â | Â | Â | < 0.001 |
   No | 610 | (84.7) | 89 | (30.4) |  |
   Yes | 110 | (15.3) | 204 | (69.6) |  |
Cigarette smoking (pack-years) | Â | Â | Â | Â | < 0.001 |
   Never user | 414 | (57.5) | 76 | (25.9) |  |
   User | 306 | (42.5) | 217 | (74.1) |  |
   1-20 | 133 | (18.5) | 63 | (21.5) |  |
   > 20 | 173 | (24.0) | 154 | (52.6) |  |
Alcohol consumption (drink-years) | Â | Â | Â | Â | 0.078 |
   Never user | 518 | (71.9) | 191 | (65.2) |  |
   User | 202 | (28.1) | 102 | (34.8) |  |
   1-20 | 100 | (13.9) | 46 | (15.7) |  |
   > 20 | 102 | (14.2) | 56 | (19.1) |  |
Areca nut chewing (pack-years) | Â | Â | Â | Â | < 0.001 |
   Never user | 663 | (92.1) | 205 | (70.0) |  |
   User | 57 | (7.9) | 88 | (30.0) |  |
   1-20 | 34 | (4.7) | 30 | (10.2) |  |
   > 20 | 23 | (3.2) | 58 | (19.8) |  |