Table 1 Baseline characteristics of all patients in the training cohort and validation cohort
Variables | Total | Training cohort | Validation cohort | P-value |
|---|---|---|---|---|
n = 893 | n = 625 | n = 268 | ||
Age (years) | 70(60,77) | 70(61,77) | 68(59,77) | 0.041 |
Gender | Â | Â | Â | Â |
Male | 549(61.5) | 384(61.4) | 165(61.6) | 0.971 |
Female | 344(38.5) | 241(38.6) | 103(38.4) | |
Admission situation | Â | Â | Â | Â |
time of onset(hour) | 5(3,8) | 5(3,8) | 5(2.5,9) | 0.847 |
temperature(℃) | 36.6(36.5,36.8) | 36.6(36.5,36.8) | 36.6(36.5,36.8) | 0.594 |
systolic pressure(mmHg) | 150(143,167) | 150(133,150) | 150(135,168) | 0.422 |
GCS | 11(9, 12) | 11(9, 12) | 11(8, 12) | 0.133 |
NIHSS | 13(8, 18) | 12(8, 18) | 13(9, 19) | 0.163 |
disease history | Â | Â | Â | Â |
Hypertension | 545(61.0) | 377(60.3) | 168(62.7) | 0.506 |
COPD | 22(2.5) | 15(4.0) | 7(2.6) | 0.851 |
cerebral infarction | 167(18.7) | 124(19.8) | 43(16.0) | 0.183 |
Atrial fibrillation | 252(28.2) | 183(29.3) | 69(25.7) | 0.282 |
heart failure | 45(5.0) | 31(5.0) | 14(5.2) | 0.869 |
myocardial infarction | 14(1.6) | 11(1.8) | 3(1.1) | 0.480 |
Preoperative Laboratory parameters | Â | Â | Â | |
WBC(10^9/L) | 8.2(6.6,10.6) | 8.2(6.6,10.5) | 8.1(6.5,10.7) | 0.729 |
Neut(10^9/L) | 5.9(4.4,8.2) | 5.95(4.4,8.2) | 5.9(4.3,8.3) | 0.555 |
HB(g/L) | 136(124,148) | 136(123,148) | 137(125,147) | 0.662 |
PLT(10^9/L) | 204(166,248) | 204(166,248) | 204(166,245) | 0.857 |
CL(mmol/L) | 104.7(102.2,107,0) | 104.8(102.3,107.0) | 104.6(102.0,107.0) | 0.460 |
Na(mmol/L) | 138.6(136.7,140.4) | 138.7(136.8,140.4) | 138.4(136.7,140.5) | 0.438 |
Postoperatively Laboratory parameters | Â | Â | Â | |
WBC(10^9/L) | 8.9(7.1,10.9) | 8.9(7.1,10.8) | 8.9(7.2,11.0) | 0.652 |
Neut(10^9/L) | 7.1(5.4,9.2) | 7.1(5.3,9.2) | 7.2(5.6,9.2) | 0.709 |
HB(g/L) | 124(113,136) | 124(112,135) | 124(115,137) | 0.192 |
PLT(10^9/L) | 194(157,232) | 193(155,231) | 195(161,237) | 0.446 |
72Â h high CL(mmol/L) | 110.0(107.6,113.0) | 110.0(107.5,113.0) | 110.0(107.6,113.0) | 0.633 |
72Â h high Na(mmol/L) | 142.0(140.1,144.5) | 142.0(140.2,144.4) | 141.9(140.0,144.9) | 0.764 |
temperature(°) | 36.5(36.5,37.0) | 36.5(36.5,37.0) | 36.5(36.5,37.0) | 0.395 |
complication | Â | Â | Â | Â |
ICH | 175(19.6) | 127(20.3) | 48(17.9) | 0.406 |
pneumonia | 400(44.8) | 275(44.0) | 125(46.6) | 0.467 |
dysphagia | 487(54.5) | 336(53.4) | 151(56.3) | 0.477 |
operate | Â | Â | Â | Â |
mechanical ventilation | 275(30.8) | 194(31.0) | 81(30.2) | 0.809 |