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Table 4 Chi-Square Test for the percentage of relative SA above 1.0 year in the gender, BMI, and age groups

From: Accelerated skeletal maturation is associated with overweight and obesity as early as preschool age: a cross-sectional study

Group

N (%)

x2

df

Sig.

Gender

 Male (n = 730)

94 (12.9%)

0.000

1

ns

 Female (n = 600)

78 (13.0%)

BMI

 Thinness (n = 102)

8 (7.8%)

89.442

3

**

 Normal (n = 796)

56 (7.0%)

 Overweight (n = 286)

63 (22.0%)

 Obese (n = 146)

45 (30.8%)

Age a

 3.5 y (n = 234)

9 (3.8%)

43.417

5

**

 4.0 y (n = 176)

23 (13.1%)

 4.5 y (n = 276)

29 (10.5%)

 5.0 y (n = 282)

38 (13.5%)

 5.5 y (n = 254)

43 (16.9%)

 6.0 y (n = 108)

30 (27.8%)

  1. BMI body mass index. Relative SA: relative skeletal age (skeletal age -chronological age)
  2. **P < 0.01
  3. a3.5 years (3.1–3.9 years), 4.0 years (4.0–4.4 years), 4.5 years (4.5–4.9 years), 5.0 years (5.0–5.4 years), 5.5 years (5.5–5.9 years), 6.0 years (6.0–6.6 years)
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BMC Pediatrics

ISSN: 1471-2431

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