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Table 4 Comparison of rate of moderately to physically active children observed on schoolyards at LL and control schools during different utilization periods, reported as percentage

From: An assessment of schoolyard renovation strategies to encourage children's physical activity

  Mean rate, Learning Landscapes Mean rate, unrenovated schoolyards Mean difference Standard error difference p
All periods      
All children 42.2 40.4 1.7 3.3 .602
Boys 44.2 42.5 1.7 3.8 .646
Girls 39.7 38.5 1.2 3.3 .114
Before School      
All children 27.1 35.8 -8.6 4.1 .050
Boys 29.7 33.9 -4.2 6.0 .491
Girls 26.2 40.4 -14.1 9.8 .174
Lunch Recess      
All children 42.8 43.5 -0.7 2.6 .796
Boys 46.5 45.7 0.7 3.2 .841
Girls 38.7 40.1 -2.3 2.7 .402
After School      
All children 47.3 36.7 10.6 9.0 .242
Boys 48.0 40.6 6.3 10.5 .550
Girls 48.0 33.5 14.5 8.9 .111
Weekends      
All children 42.9 41.0 1.9 32.0 .956
Boys 44.2 42.9 1.3 31.4 .969
Girls 43.3 16.6 26.7 57.2 .665