Table 3

Spearman correlations between ED use, family SES, parent–child interaction and sleep duration

Family SESRecreation-based parent–child interactionLearning-based parent–child interactionSleep duration
Family ownership
 Television−0.040.050.080.07
 Computer−0.02−0.04−0.05−0.04
 Tablet computer0.28 ***0.160.100.00
 Smartphone0.100.140.130.11
 Game console−0.080.100.020.04
 Portable game console−0.31 ***−0.050.010.02
Placement in the child’s bedroom
 Any of below−0.18 **0.000.00−0.03
 Television−0.18 **0.010.02−0.03
 Desktop/laptop computer−0.12−0.01−0.02−0.04
 Game console−0.100.010.02−0.01
ED placed in the bedroom without corresponding parental restriction
 Any of below−0.22 ***−0.16 *−0.10−0.05
 Television−0.21 ***−0.16 *−0.10−0.06
 Desktop/laptop computer−0.14−0.09−0.05−0.05
 Game console−0.08−0.18 **−0.11−0.02

  • *p<0.05, **p<0.01, ***p<0.0001.

  • ED, electronic device; SES, socioeconomic status.