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Table 1 Mean values of sagittal parameters in different age cohorts

From: Assessment of sagittal spinopelvic alignment in asymptomatic Chinese juveniles and adolescents: a large cohort study and comparative meta-analysis

Parameter

All subjects (n = 656)

Juveniles (n = 98)

Adolescents

P value

Age (years)

13.14 ± 3.41

7.03 ± 1.42

14.22 ± 2.37

 < 0.001

Gender (F/M)

402/254

43/55

359/199

–

Risser sign

2.92 ± 1.89

0

3.43 ± 1.57

 < 0.001

TK (°)

30.41 ± 10.44

32.19 ± 10.77

30.10 ± 10.35

0.798

TLJA (°)

3.71 ± 7.55

2.31 ± 7.79

3.95 ± 7.49

0.806

LL (°)

49.95 ± 9.04

46.34 ± 8.94

50.59 ± 8.92

0.945

PI (°)

41.84 ± 7.47

34.20 ± 4.00

43.18 ± 7.12

 < 0.001

PT (°)

7.76 ± 7.11

3.99 ± 6.04

8.42 ± 7.08

0.012

SS (°)

34.08 ± 6.49

30.21 ± 6.20

34.76 ± 6.31

0.480

PI-LL (°)

 − 8.12 ± 9.94

 − 12.14 ± 9.76

 − 7.41 ± 9.81

0.576

SVA (mm)

 − 0.01 ± 21.57

0.83 ± 21.96

 − 0.16 ± 21.52

0.761

  1. Bold values indicate a statistical difference
  2. Radiographic sagittal parameters for juvenile and adolescent group were compared using independent samples t test. F meant female, while M meant male