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Table 1 Clinical characteristics of the patients in the training and test cohorts

From: Development and validation of an ultrasound‑based radiomics nomogram to predict lymph node status in patients with high-grade serous ovarian cancer: a retrospective analysis

Characteristics

Training Cohort (n = 322)

Test Cohort (n = 79)

LNM negative

LNM positive

p value

LNM negative

LNM positive

p value

n = 184

n = 138

n = 44

n = 35

RadsScore, mean (SD)

0.23 (0.21)

0.69 (0.27)

<0.05

0.34 (0.29)

0.74 (0.23)

<0.05

Age, mean (SD)

54.7 (8.40)

53.3 (9.09)

0.163

56.8 (7.93)

55.6 (9.34)

0.556

Menopausal status, n (%)

  

0.391

  

1

 No

61 (33.2%)

53 (38.4%)

 

13 (29.5%)

11 (31.4%)

 

 Yes

123 (66.8%)

85 (61.6%)

 

31 (70.5%)

24 (68.6%)

 

US-reported pelvic fluid, n (%)

2.16 (2.41)

3.91 (3.23)

<0.05

2.01 (1.92)

2.84 (2.87)

0.147

Lateral

  

<0.05

  

0.116

 Unilateral

112 (60.9%)

63 (45.7%)

 

29 (65.9%)

16 (45.7%)

 

 Bilateral

72 (39.1%)

75 (54.3%)

 

15 (34.1%)

19 (54.3%)

 

US-reported peritoneal thickening, n (%)

  

<0.05

  

<0.05

 No

163 (88.6%)

78 (56.5%)

 

38 (86.4%)

18 (51.4%)

 

 Yes

21 (11.4%)

60 (43.5%)

 

6 (13.6%)

17 (48.6%)

 

US-reported pelvic wall nodules, n (%)

  

<0.05

  

0.102

 No

163 (88.6%)

95 (68.8%)

 

37 (84.1%)

23 (65.7%)

 

 Yes

21 (11.4%)

43 (31.2%)

 

7 (15.9%)

12 (34.3%)

 

Maximum diameter, mean (SD)

9.50 (4.18)

9.55 (4.03)

0.912

9.15 (3.36)

9.24 (3.73)

0.91

CA125, median (IQR)

254 [77.9;564]

840 [398;1709]

<0.05

302 [74.6;613]

530 [139;1097]

<0.05

HE4, median (IQR)

191 [105;363]

448 [243;710]

<0.05

152 [102;229]

251 [152;518]

<0.05

CEA, median (IQR)

1.52 [0.94;2.08]

1.17 [0.78;1.98]

<0.05

1.39 [0.88;2.13]

1.52 [0.96;2.14]

0.487

CA724, median (IQR)

6.91 [2.83;20.8]

19.6 [7.15;64.2]

<0.05

7.95 [4.26;13.7]

10.7 [6.28;21.5]

0.186

  1. Abbreviations LNM, lymph node metastasis; SD, standard deviation; IQR, interquartile range; CA125, cancer antigen 125; HE4, human epididymal protein 4; CEA, carcinoembryonic antigen; CA724, cancer antigen 724