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Table 3 Adjusted associations between academic achievement and separate screen and non-screen sedentary variables in multiple multilevel linear regression models

From: Revising on the run or studying on the sofa: prospective associations between physical activity, sedentary behaviour, and exam results in British adolescents

  Total pointsa
Β (95 % CI) P value
Screen behaviours (in the same model)
 TV viewing (hr/day) −9·6 (−17·6, −3·8) 0·011
 Internet use (hr/day) −8·8 (−16·2, −1·4) 0·023
 Computer games (hr/day) −9·8 (−19·8, 0·1) 0·052
Non-screen behaviours (in the same model)
 Homework (hr/day) 17·4 (5·6, 29·3) 0·007
 Reading (hr/day) 29·9 (12·1, 47·7) 0·003
  1. All models clustered for school and adjusted for MFQ, BMI z-score, deprivation, season of physical activity measurement, and sex
  2. aCalculated to include GCSE and GNVQ results e.g., for GCSEs A* = 58, A = 52…G = 16, and similar for GNVQ grades