Table 1 Baseline information for the training and verification sets

Onset-to-MRI time

0.127

< 24 hours

10(13.9%)

76(27.9%)

4(14.3%)

34(28.3%)

24–72 hours

62(86.1%)

196(72.1%)

24(85.7%)

86(71.7%)

Gender(male)

39(54.2%)

172(63.2%)

0.161

18(64.3%)

79(65.8%)

0.878

Age

67.7 ± 7.0

58.2 ± 9.0

< 0.001*

65.5 ± 7.2

58.7 ± 8.6

< 0.001

History of hypertension(%)

48(66.7%)

188(69.1%)

0.691

18(64.3%)

74(61.7%)

0.799

History of diabetes mellitus(%)

29(40.3)

106(39.0%)

0.840

9(32.1%)

38(31.7%)

0.961

History of coronary heart disease(%)

12(16.7%)

22(8.1%)

0.030*

2(7.1%)

11(9.2%)

0.735

History of smoking(%)

53(73.6%)

92(33.8%)

< 0.001*

17(60.7%)

40(33.3%)

0.007

History of drinking(%)

23(31.9%)

84(30.9%)

0.863

9(32.1%)

40(33.3%)

0.905

Initial SBP(mmHg)

169.2 ± 20.7

142.9 ± 17.1

< 0.001*

174.4 ± 20.2

139.9 ± 19.1

< 0.001

Initial DBP(mmHg)

87.8 ± 12.0

87.7 ± 11.8

0.966

88.4 ± 8.4

84.8 ± 10.5

0.089

Initial NIHSS

6.0(4.0,8.0)

2.0(1.0,3.0)

< 0.001*

4.0(3.0,8.0)

3.0(1.0,4.0)

< 0.001

TC(mmol)

5.4 ± 1.1

4.3 ± 0.9

< 0.001*

4.9 ± 0.8

4.2 ± 1.0

< 0.001

TG(mmol)

2.5(1.9,3.3)

1.7(1.3,2.3)

< 0.001*

2.0(1.6,2.9)

1.5(1.1,2.0)

< 0.001

HDL(mmol)

1.1 ± 0.3

1.2 ± 0.4

0.054

1.1 ± 0.2

1.1 ± 0.3

0.945

LDL(mmol)

3.2 ± 0.9

2.7 ± 0.8

< 0.001*

3.0 ± 0.7

2.6 ± 0.8

0.032

HCY(umol/l)

13.5(10.8,17.6)

11.5(9.4,13.7)

< 0.001*

14.0(11.8,17.7)

12.2(0.94,1.3)

0.001