Patient characteristics and clinical data
| CFI<0.25 | CFI≥0.25 | p Value | |
|---|---|---|---|
| Number of study individuals | 895 | 286 | |
| Number of CFI measurements | 1414 | 357 | |
| Number of individuals without CAD | 124 | 26 | |
| Age (years) | 62±11 | 61±12 | 0.07 |
| Male gender (%) | 694 (78) | 232 (81) | 0.20 |
| Duration of chest pain (months) | 14±35 | 11±22 | 0.23 |
| Prior myocardial infarction in remote area (%) | 196 (22) | 59 (21) | 0.61 |
| Body mass index (kg/m2) | 28±9 | 28±16 | 0.59 |
| Smoking (%) | 291 (33) | 107 (37) | 0.14 |
| Dyslipidemia (%) | 544 (61) | 177 (62) | 0.89 |
| Hypertension (%) | 543 (61) | 155 (54) | 0.0364 |
| Family history for CAD (%) | 323 (36) | 94 (33) | 0.27 |
| Diabetes mellitus (%) | 160 (18) | 51 (18) | 0.95 |
| Acetylsalicylic acid (%) | 707 (79) | 232 (81) | 0.79 |
| β-blockers (%) | 521 (58) | 177 (62) | 0.31 |
| Nitrates (%) | 208 (23) | 82 (29) | 0.08 |
| ACE inhibitor (%) | 707 (79) | 232 (81) | 0.79 |
| Statin (%) | 492 (55) | 146 (51) | 0.17 |
CAD, coronary artery disease; CFI, collateral flow index.