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Table 3 Principal component analysis: Unrotated and Varimax rotated components matrix of maternal anthropometry.

From: A principal components approach to parent-to-newborn body composition associations in South India

 

Unrotated components

Varimax rotated components

Maternal anthropometry

M1

M2

M3

M4

RM1

RM2

RM3

RM4

Weight

0.921

-0.003

0.253

0.064

0.765

0.345

0.337

0.315

Height

0.251

0.448

0.530

-0.540

-0.034

0.227

0.882

-0.066

Body mass index

0.874

-0.219

0.017

0.330

0.842

0.263

-0.062

0.372

Head circumference

0.441

0.119

0.643

-0.111

0.314

0.009

0.672

0.292

Arm muscle area

0.244

0.353

0.373

0.772

0.011

0.144

0.034

0.948

Triceps skinfold

0.845

-0.400

-0.071

-0.137

0.919

0.194

0.055

-0.113

Subscapular skinfold

0.817

-0.375

-0.076

-0.014

0.881

0.192

-0.011

-0.009

Biceps skinfold

0.794

-0.369

-0.012

-0.010

0.862

0.154

0.033

0.020

Suprailiac skinfold

0.800

-0.321

-0.003

-0.172

0.839

0.193

0.147

-0.097

Intercristal diameter

0.775

0.504

-0.239

-0.014

0.339

0.870

0.140

0.142

Interspinous diameter

0.610

0.656

-0.339

-0.042

0.113

0.943

0.095

0.086

External conjugate diameter

0.717

0.484

-0.328

-0.061

0.300

0.872

0.080

0.048

Variance (%)

50.6

15.3

9.9

8.9

39.0

23.4

11.7

10.6

Cumulative Variance (%)

84.7

84.7

  1. Values are factor loadings (correlation co-efficient of the relationship between the factors produced and the individual anthropometric measurements); M1, M2, M3, and M4 represents the first, second, third and fourth unrotated factors extracted; RM1, RM2, RM3, and RM4 represents the first, second, third and fourth rotated factors extracted. Values > 0.7 are highlighted. Variance is the percentage variance explained by each factor and cumulative variance is the percentage variance explained by all the four factors together.