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Table 3 Association between physical activity (counts per minute) and sleep latency, sleep duration and sleep efficiency before and after adjusting for sex, age and BMI z - scores

From: Associations between objective measures of physical activity, sleep and stress levels among preschool children

 R2β95% CIp valueR2β95% CIp value
Sleep latency (min)0.10335.21(5.67, 64.75)0.020.15233.65(2.02, 65.28)0.04
Sleep duration (Hours)0.007−142.1(− 622.3, 338,1)0.550.053− 132.3(− 620.6, 356,1)0.59
Sleep efficiency (%)a0.025−4087(−11,291, 3117)0.260.071− 4106(− 11,948, 3736)0.30
  1. a: percentage of minutes scored as sleep during the down time interval