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Table 1 Baseline characteristics of the five grades analyzed

From: Low visual information-processing speed and attention are predictors of fatigue in elementary and junior high school students

  Elementary school Junior high school
Grade level 4th grade 5th grade 6th grade 7th grade 8th grade
Age range (9 - 10 years) (10 - 11 years) (11 - 12 years) (12 - 13 years) (13 - 14 years)
Age (years) 9.7 ± 0.5 10.7 ± 0.5 11.7 ± 0.5 12.6 ± 0.5 13.4 ± 0.5
Female/Male 16/16 15/10 16/10 16/9 0/10
  1. Values are presented as the mean ± SD or number.