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Table 8 Comparisons of transvaginal 2D SWE outcomes between patients with and without HPV infection, shown as mean ± SD, median (25th -75th percentile)

From: Evaluation of the stiffness of normal cervix and its change with different factors using transvaginal two-dimensional shear wave elastography under strict quality control

HPV infection

Internal cervical os of midsagittal planes

External cervical os of midsagittal planes

Emean

Emax

Emin*

Emean*

Emax

Emin*

+ (n = 42)

45.20 ± 7.19

45.62 (41.16–49.90)

50.41 ± 6.39

49.22 (46.48–53.84)

39.04 ± 7.76

40.26 (35.01–44.13)

21.75 ± 10.26

21.01 (12.47–28.91)

28.46 ± 10.45

27.73 (18.85–36.88)

15.44 ± 10.05

12.31 (7.78–19.84)

- (n = 158)

44.60 ± 6.19

44.75 (41.53–49.17)

49.69 ± 6.27

50.02 (45.55–54.18)

38.29 ± 7.14

39.29 (34.83–42.69)

23.42 ± 8.94

23.97 (16.25–29.04)

29.70 ± 9.05

30.15 (22.42–35.66)

16.30 ± 8.35

16.23 (9.30-21.86)

t/Z

0.537

0.660

0.859

1.347

0.765

1.191

P

0.592

0.510

0.390

0.178

0.445

0.234

  1. * means non-normal distribution
  2. 2D SWE: two-dimensional shear wave elastography; SD: standard deviation; Emean: mean elasticity; Emax: maximal elasticity; Emin: minimal elasticity