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Table 1 Clinical characteristics of study population (N = 2417)

From: Improving colposcopic accuracy for cervical precancer detection: a retrospective multicenter study in China

Characteristics

N

(%)

Total

2417

100

Age

  < 30

325

13.4

 30–35

823

34.1

 36–45

812

33.6

  > 45

457

18.9

Cytology

 NILM

1287

53.2

 ASC-US

488

20.2

 LSIL

312

12.9

 ASC-H

148

6.1

 HSIL + 

182

7.6

HPV status

 Negative

874

36.2

 Non-16/18 hrHPV positive

811

33.6

 HPV16/18 positive

732

30.2

Transformation zone

 TZ1/2

1061

43.9

 TZ3

1356

56.1

Colposcopy diagnosis

 Normal/benign

771

31.9

 Low grade

554

22.9

 High grade

1092

45.2

Histology

 Normal

654

27.1

 LSIL

680

28.1

 HSIL + 

1083

44.8

Colposcopist’s skills

 Junior

1537

63.6

 Senior

880

36.4

  1. Abbreviations: NILM no intraepithelial lesion cells and malignant cells, ASC-US atypical squamous cells of unknown significance, LSIL low-grade squamous intraepithelial lesion, ASC-H atypical squamous cells of cannot exclude high-grade squamous intraepithelial lesion, HSIL + high-grade squamous intraepithelial lesions or worse, hrHPV high-risk human papillomavirus, TZ transformation zone
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BMC Cancer

ISSN: 1471-2407

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