Skip to main content

Table 1 Potential quantitative sonographic measurement predictors of early or late acetabular index normalization

From: Natural history of hip instability in infants (without subluxation or dislocation): a three year follow-up

Variable

Prevalence OR

95% CI

p

Normalized before 7 months of age (group I), number of hips =17

Normalized after 7 months of age (group II), number of hips =31

    

Median (mm)

IQR (mm)

Min-max (mm)

Median (mm)

IQR (mm)

Min-max (mm)

LSCFaddMAD

0.355

0.15-0.823

0.016

4.35

1.7

3-7.2

3.8

1

2.3-5.6

LSCNmid

31.15

1.74-558.69

0.020

1.15

0.9

0.1-1.7

1.75

0.55

1.1-2.4

LSCFmad

0.36

0.13-1.00

0.050

3.75

1.2

1.8-5.5

3.4

0.80

1.9-4.1

LSCFaddBC

12113.82

0.70-2.09

0.059

0.57

0.1

0.42-0.64

0.63

0.11

0.49-0.73

LSCNmad

0.58

0.32-1.07

0.082

3.8

0.80

2.5-6.5

3.3

1.9

-0.1-6.3

FSCFΔsce

0.92

0.85-1.01

0.092

2

10

-11-14

-2

9

-28-12

FSCNα

1.00

088-1.14

0.966

59

5

55-68

59

6

49-69

LSCNα

0.96

0.86-1.08

0.526

64

7

51-79

65

6

56-72

FSCNbc

1.06

098-1.14

0.136

54.75

10.02

36.77-70.42

58.68

12.81

43.24-90.68

LSCNbc

8.72

0.01-16345.16

0.573

61.90

22.89

50.35-78.28

65.89

13.11

54.49-85.71

  1. Variable key: Time of measurement description (FS = first sonogram, LS = last sonogram) and code for measurement (see Additional file 1). OR = odds ratio, CI = confidence interval. All infants’ hips exhibited hip instability with stress and seated at rest with or without acetabular dysplasia on sonography. Normalization is radiographic AI ≤25°.