Table 1 Baseline characteristics between IVUS- and angiography-guided groups
Before matching | After matching | |||||
|---|---|---|---|---|---|---|
IVUS-guided N = 420 | Angiography-guided N = 4246 | p-value | IVUS-guided N = 416 | Angiography-guided N = 814 | p-value | |
Age | 67(61–74) | 67(59–74) | 0.531 | 67(61–74) | 67(61–74) | 0.745 |
Female | 77(18.3) | 320(25.2) | 0.002 | 77(18.5) | 158(19.4) | 0.704 |
Hypertension | 265(63.1) | 3008(57.3) | 0.022 | 261(62.7) | 514(63.1) | 0.889 |
Diabetes | 139(33.1) | 1527(29.1) | 0.084 | 137(32.9) | 268(32.9) | 0.998 |
Smoker | 202(48.1) | 2370(45.2) | 0.248 | 200(48.1) | 364)44.7) | 0.862 |
Dyslipidemia | 24(5.7) | 345(6.6) | 0.491 | 24(5.8) | 43(5.3) | 0.722 |
Prior stroke | 31(7.4) | 130(2.5) | <0.001 | 29(7.0) | 54(6.6) | 0.823 |
CKD | 10(2.4) | 105(2.0) | 0.596 | 10(2.4) | 25(3.1) | 0.505 |
Prior MI | 60(14.3) | 647(12.3) | 0.244 | 60(14.4) | 110(13.5) | 0.662 |
Prior PCI | 72(17.1) | 490(9.3) | <0.001 | 68(16.3) | 126(15.5) | 0.693 |
Diagnosis of ACS | ||||||
STEMI | 53(12.6) | 1386(26.4) | <0.001 | 53(12.7) | 103(12.7) | 0.965 |
NSTEMI | 101(24.0) | 1223(23.3) | 0.732 | 101(24.3) | 183(22.5) | 0.479 |
UA | 266(63.3) | 2637(50.3) | <0.001 | 262(63) | 528(64.9) | 0.514 |
Multivessel | 318(75.7) | 3999(76.2) | 0.811 | 314(75.5) | 633(77.8) | 0.368 |
CTO | 40(9.5) | 442(8.4) | 0.438 | 40(9.6) | 87(10.7) | 0.559 |
LMCA | 84(20.0) | 297(5.7) | <0.001 | 80(19.2) | 144(17.7) | 0.508 |
LVEF(%) | 58 (55–59) | 58(53–59) | 0.026 | 58(55–59) | 58(55–59) | 0.901 |
LDL-C(mmol/L) | 2.4 (1.8-3.0) | 2.7(2.1–3.5) | <0.001 | 2.4(1.8-3.0) | 2.4(1.9-3.0) | 0.378 |
WBC(10^9) | 6.8(5.7–8.3) | 7.4(6.1–9.3) | <0.001 | 6.8(5.7–8.3) | 7.0(5.9–8.6) | 0.146 |
Hb(g/L) | 14.1(13–15) | 14.1(13–15) | 0.510 | 14.1(13–15) | 14.1(13–15) | 0.305 |
PLT(10^9/L) | 205(174–280) | 209(178–246) | 0.315 | 205(175–246) | 206(174–243) | 0.779 |
Crea(umol/L) | 72(62–83) | 71(61–82) | 0.374 | 71(62–83) | 73(63–85) | 0.110 |
Ticagrelor | 209(49.8) | 2822(53.9) | 0.111 | 207(49.8) | 408(50.1) | 0.904 |
NO. of stent | 1.5 ± 0.8 | 1.6 ± 0.8 | 0.055 | 1.5 ± 0.8 | 1.6 ± 0.8 | 0.078 |
Total stent length(mm) | 39.2 ± 23.8 | 41.8 ± 24.3 | 0.033 | 39.3 ± 23.8 | 41.6 ± 23.7 | 0.114 |
Mean stent diameter(mm) | 3.2 ± 1.1 | 3.1 ± 0.7 | < 0.001 | 3.2 ± 1.1 | 3.1 ± 0.5 | 0.001 |