Table 1. The clinical characteristics of the two groups.
| Category | Stent thrombosis group (n=27) | Control group (n=860) | χ2 value | P value |
|---|---|---|---|---|
| Age (years), n (%) | 1.639 | 0.200 | ||
| ≥65 | 12 (44.44) | 281 (32.67) | ||
| <65 | 15 (55.56) | 579 (67.33) | ||
| Gender, n (%) | 0.983 | 0.322 | ||
| Male | 19 (70.37) | 524 (60.93) | ||
| Female | 8 (29.63) | 336 (39.07) | ||
| Hypertensive disease, n (%) | 18 (66.67) | 610 (70.93) | 0.230 | 0.631 |
| Diabetes, n (%) | 12 (44.44) | 259 (30.12) | 2.533 | 0.111 |
| Hyperlipidemia, n (%) | 24 (88.89) | 692 (80.47) | 1.194 | 0.275 |
| Stent number, n (%) | 6.440 | 0.011 | ||
| ≥4 | 17 (62.96) | 333 (38.72) | ||
| <4 | 10 (37.04) | 527 (61.28) | ||
| Stent diameter (mm), n (%) | 0.398 | 0.528 | ||
| ≥3.4 | 17 (62.96) | 489 (56.86) | ||
| <3.4 | 10 (37.04) | 371 (43.14) | ||
| Stent length (cm), n (%) | 2.713 | 0.100 | ||
| ≥15 | 15 (55.56) | 342 (39.77) | ||
| <15 | 12 (44.44) | 518 (60.23) | ||
| D-dimer, n (%) | 1.834 | 0.176 | ||
| ≥0.5 mg/L | 26 (96.30) | 754 (87.67) | ||
| <0.5 mg/L | 1 (3.70) | 106 (12.33) | ||
| Systemic immune inflammatory index, n (%) | 14.872 | 0.000 | ||
| ≥636 | 15 (55.56) | 200 (23.26) | ||
| <636 | 12 (23.26) | 660 (76.74) | ||
| Stent type, n (%) | 0.001 | 0.979 | ||
| Drug coated balloon | 15 (55.56) | 480 (55.81) | ||
| Drug eluting stent | 12 (44.44) | 380 (44.19) | ||
| Platelet count, n (%) | 1.138 | 0.286 | ||
| ≥300 | 16 (59.26) | 420 (48.84) | ||
| <300 | 11 (40.74) | 440 (51.16) | ||
| Neutrophil count, n (%) | 2.160 | 0.142 | ||
| ≥70% | 17 (62.96) | 418 (48.60) | ||
| <70% | 10 (37.04) | 442 (51.40) | ||
| Lymphocyte, n (%) | 0.645 | 0.422 | ||
| ≥40% | 8 (29.63) | 320 (37.21) | ||
| <40% | 19 (70.37) | 540 (62.79) | ||