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Table 3 Correlation coefficients (r or rs) for correlation between duration of time spent on sleeping, selected categories of activities, daily energy expenditure (DEE) and BMI-for-age

From: Are physical activity, sedentary behaviors and sleep duration associated with body mass index-for-age and health-related quality of life among high school boys and girls?

  Girls
(n = 227)
Boys
(n = 238)
Sleeping duration (hours/day) 0.02 0.01
Sedentary and sport activities during school period   
Screen time viewing (hours/week) 0.01 0.06
-Watching TV (hours/week) 0.01 0.09
-Videogames/Internet (hours/week) −0.03 −0.03
Listening to music/reading (hours/week) −0.04 0.01
Sport activities (hours/week) 0.02 −0.09
Sedentary and sport activities during vacation period   
Screen time viewing (hours/week) 0.06 0.07
-Watching TV (hours/week) 0.07 0.09
-Videogames/Internet (hours/week) 0.04 0.03
Listening to music/reading (hours/week) 0.06 0.02
Sport activities (hours/week) 0.03 −0.03
DEE during school period per kg body weight (kcal/kg.day) 0.04 −0.14*
DEE during vacation period per kg body weight (kcal/kg.day) 0.04 −0.06
DEE total year per kg body weight (kcal/kg.day) 0.04 −0.11
  1. *p < 0.05