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Table 3 Clinical characteristics of patients in survival analysis

From: The diagnostic and prognostic value of radiomics and deep learning technologies for patients with solid pulmonary nodules in chest CT images

Characteristics

Training (N = 217)

Testing (N = 78)

P value

Stage

  

0.378

 IA

132 (60.8)

52 (66.7)

 

 IB

67 (30.9)

23 (29.5)

 

 II-III

18 (8.3)

3 (3.8)

 

Follow-up time (month)

  

0.637

 Mean ± standard deviation

55 ± 21.8

58 ± 23.4

 

 Median (25th, 75th)

57 (47–66)

57 (51–66)

 

Number of recurrence

 All

47 (21.7)

15 (19.2)

0.652

 At 1 year

13 (6.0)

3 (3.8)

 

 At 2 years

21 (9.7)

7 (9.0)

 

 At 3 years

29 (13.4)

9 (11.5)

 

DFS, mean with 95% CI (month)

 All

90 (84, 95)

99 (90, 107)

0.634

 Low-risk group based on Rad-score

96 (92, 101)

104 (98, 110)

 high-risk group based on Rad-score

71 (60, 81)

89 (75, 102)

  1. Unless specified, data in parentheses are percentages
  2. Abbreviations: DFS Disease-free survival, CI Confidence interval