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Table 2 Comparison of patient and clinical risk factors in training and validation group

From: Predicting coronary artery calcified plaques using perivascular fat CT radiomics features and clinical risk factors

 

Training group (n = 141)

 

Validation group (n = 59)

 

Calcified plaque group (n = 74)

Non-calcified plaque group (n = 67)

p

Calcified plaque group (n = 31)

Non-calcified plaque group (n = 28)

p

Age (years)

61.95 ± 10.15

57.76 ± 10.04

0.007

63.58 ± 9.02

59.93 ± 9.92

0.212

Gender

  

0.234

  

0.470

 Male

38 (51.4%)

46 (68.7%)

 

18 (58.1%)

14 (50.0%)

 

 Female

36 (48.6%)

21 (31.3%)

 

13 (41.9%)

14 (50.0%)

 

Hypertension

  

0.538

  

0.090

 Yes

32 (43.2%)

37 (55.2%)

 

18 (58.1%)

18 (64.3%)

 

 No

42 (56.8%)

30 (44.8%)

 

13 (41.9%)

10 (35.7%)

 

Diabetes

  

0.229

  

0.597

 Yes

10 (13.5%)

6(9.0%)

 

6 (19.4%)

5 (17.9%)

 

 No

64 (84.5%)

61(91.0%)

 

25(80.6%)

23 (82.1%)

 

Hyperlipidemia

  

0.248

  

0.066

 Yes

5 (6.8%)

6 (9.0%)

 

5 (16.1%)

2 (7.1%)

 

 No

69 (93.2%)

61 (91.0%)

 

26 (83.9%)

26 (92.9%)

 

Diseased blood vessel

  

0.808

  

0.226

 LM

4 (5.4%)

4 (6.0%)

 

3 (9.7%)

1 (3.5%)

 

 LAD

43 (58.1%)

40 (59.7%)

 

18 (58.1%)

16 (57.1%)

 

 D

1 (1.4%)

3 (4.5%)

 

0 (0)

2 (7.1%)

 

 LCx

10 (13.5%)

4 (6.0%)

 

3 (9.7%)

1 (3.6%)

 

 RCA

14 (18.9%)

15 (22.3%)

 

7 (22.5%)

8 (28.6%)

 

 PDA

2 (2.7%)

1 (1.5%)

 

0 (0)

0 (0)

 
  1. LM left main artery, LAD left anterior descending artery, D diagonals, LCx left circumflex artery, RCA right coronary artery, PDA posterior descending artery
  2. Qualitative variables are expressed as n (%) and were analyzed using the chi-square test or Fisher’s exact test, and quantitative variables are expressed as mean ± standard deviation and were analyzed using the t-test. A p value of < 0.05 was considered statistically significant