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Table 3 Unrotated components matrix for principal components analysis of boys' and girls' birth anthropometry.

From: Assessing newborn body composition using principal components analysis: differences in the determinants of fat and skeletal size

 

Boys

Girls

Component:

B1

B2

G1

G2

Birth weight

0.951

-0.012

0.949

-0.027

Length

0.803

-0.426

0.834

-0.398

Crown Rump

0.842

-0.262

0.834

-0.305

Knee Heel

0.702

-0.456

0.769

-0.322

Head Circumference

0.743

-0.166

0.780

-0.129

Arm Circumference

0.843

0.254

0.867

0.181

Tricep skinfold

0.696

0.564

0.723

0.533

Subscapular skinfold

0.658

0.625

0.684

0.608

Variance (%)

61.7

15.7

65.4

13.2

Cumulative Variance (%)

77.4

78.7

  1. Values shown are component loadings (correlation coefficients of the relationship between the components produced (B1, B2, G1 and G2) and the individual measurements). B1 represents the first unrotated component produced for the boys, B2 represents the second unrotated component produced for the boys. G1 represents the first unrotated component produced for the girls, G2 represents the second unrotated component produced for the girls. Variance is the percentage variance explained by each component. Cumulative Variance indicates the variance explained by both components together.
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BMC Pediatrics

ISSN: 1471-2431

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