Page 115 - 南京医科大学自然版
P. 115
第46卷第8期 冯 婕,渠 强,雷心仪,等. 冠状动脉造影及介入治疗患者辐射剂量的影响因素分析及预测模型
2026年8月 构建[J]. 南京医科大学学报(自然科学版),2026,46(8):1218-1227,1268 ·1221 ·
表1 训练集和测试集患者的基线特征及冠状动脉造影和介入治疗特征的比较
Table 1 Comparison of baseline clinical characteristics and coronary angiographic and interventional findings between the
training and testing cohorts
Total Training set Testing set
Characteristics t/Z/χ 2 P
(n=293) (n=208) (n=85)
Demographics
Age(years,x ± s) 61.5 ± 10.3 61.6 ± 10.6 61.4 ± 9.6 -0.142 0.887
Male[n(%)] 209(71.3) 148(71.2) 61(71.8) < 0.001 1.000
Smoking history[n(%)] 126(43.0) 88(42.3) 38(44.7) 0.061 0.805
Alcohol consumption[n(%)] 96(32.8) 69(33.2) 27(31.8) 0.009 0.924
BMI(kg/m ,x ± s) 24.9 ± 3.2 25.1 ± 3.4 24.6 ± 2.9 -1.111 0.268
2
SBP[mmHg,M(P25,P75 )] 132.0(121.0,143.0) 131.0(121.0,143.0) 133.0(121.0,141.0) 0.019 0.985
DBP(mmHg,x ± s) 78.6 ± 10.6 78.2 ± 11.0 79.7 ± 9.7 1.188 0.236
Family history of CAD[n(%)] 11(3.8) 7(3.4) 4(4.7) 0.044 0.834
Duration of CAD[years,M(P25,P75 )] 4.0(0.7,24.3) 5.0(0.5,24.3) 3.0(1.0,12.2) 0.622 0.533
Laboratory tests
TC[mmol/L,M(P25,P75 )] 3.8(3.2,4.6) 3.8(3.2,4.7) 3.9(3.2,4.5) 0.343 0.732
TG[mmol/L,M(P25,P75 )] 1.4(1.0,1.9) 1.4(1.1,2.0) 1.4(1.0,1.8) 0.814 0.416
HDL⁃C[mmol/L,M(P25,P75 )] 1.0(0.9,1.2) 1.0(0.9,1.2) 1.0(0.9,1.2) -0.065 0.949
LDL⁃C[mmol/L,M(P25,P75 )] 2.3(1.8,3.0) 2.3(1.8,3.0) 2.4(1.9,2.8) 0.386 0.700
Lp(a)[mg/L,M(P25,P75 )] 176.0(66.0,420.0) 193.5(73.0,454.5) 145.0(58.0,357.0) 1.166 0.244
eGFR[mL/(min·1.73 m),x ± s] 104.0 ± 25.3 104.9 ± 26.6 102.0 ± 21.8 -0.962 0.337
2
hs⁃cTnT[ng/L,M(P25,P75 )] 9.6(7.0,14.0) 9.8(6.8,14.7) 9.2(7.3,12.8) 0.672 0.502
CK⁃MB[ng/mL,M(P25,P75 )] 1.4(1.0,1.9) 1.4(1.0,1.9) 001.3(1.0,1.9) 0.797 0.425
Instrumental examinations
ECG abnormalities[n(%)] 133(45.4) 89(42.8) 44(51.8) 1.616 0.204
LVDd[mm,M(P25,P75 )] 47.0(45.0,50.0) 47.0(45.0,50.0) 47.0(45.0,49.8) 0.656 0.510
LVDs[mm,M(P25,P75 )] 31.0(30.0,33.0) 31.0(30.0,33.0) 31.0(30.0,33.0) 0.806 0.416
LVEF[%,M(P25,P75 )] 63.3(61.9,64.7) 63.0(61.9,64.7) 63.6(62.1,64.8) -1.170 0.242
Coronary artery calcification[n(%)] 0.043 0.979
No 88(30.0) 62(29.8) 26(30.6)
Yes 175(59.7) 125(60.1) 50(58.8)
Mixed plaque 30(10.3) 21(10.1) 09(10.6)
Coronary angiography
Access site[n(%)] 3.673 0.159
Radial 289(98.6) 205(98.6) 84(98.8)
Femoral 1(0.4) 0(0) 1(1.2)
Radial and femoral 3(1.0) 3(1.4) 0(0)
Special cardiac examinations[n(%)] 1.415 0.702
None 185(63.1) 132(63.5) 53(62.3)
IVUS 74(25.3) 52(25.0) 22(25.9)
OCT 31(10.6) 21(10.1) 10(11.8)
FFR 3(1.0) 3(1.4) 0(0)
Number of diseased coronary arteries[n(%)] 1.273 0.259
Single⁃vessel disease 166(56.7) 113(54.3) 53(62.4)
Multi⁃vessel disease 127(43.3) 95(45.7) 32(37.6)
Minimum luminal area stenosis[%,M(P25,P75 )] 90.0(85.0,95.0) 90.0(85.0,95.0) 90.0(90.0,95.0) -0.772 0.425
Number of treated coronary vessels[M(P25,P75 )] 1.0(1.0,2.0) 1.0(1.0,2.0) 1.0(1.0,2.0) 0.079 0.926

