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Table 3 Correlation between the load carried and the number of different disciplines per day

From: Schoolbag weight carriage in Portuguese children and adolescents: a cross-sectional study comparing possible influencing factors

 

Backpack

Total load

load (kg)

load·BW−1

load (kg)

load·BW−1

Correlation coefficient

 5th grade

  Number of disciplines

0.396

0.281

0.478

0.358

  p

< 0.001

< 0.001

< 0.001

< 0.001

  N theoretical disciplines

0.523

0.416

0.439

0.352

  p

< 0.001

< 0.001

< 0.001

< 0.001

 9th grade

  Number of disciplines

0.196

0.204

0.266

0.290

  p

< 0.001

< 0.001

< 0.001

< 0.001

  N theoretical disciplines

0.391

0.348

0.347

0.366

  p

< 0.001

< 0.001

< 0.001

< 0.001

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BMC Pediatrics

ISSN: 1471-2431

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