Table 2.

Participant Characteristics, Physical Activity, Overall Health, School Absences due to Illness or Injury, and School-Related Problems (Number of Times Parents Contacted by School) of Children in States with and Without a Recess Policy in 2011/2012. Data are Shown as Mean or Percent ± Standard Error.

	2003		2011/2012
	No Policy	Policy*	No Policy	Policy
Age (mean years)	8.58 ± 0.02	8.51 ± 0.03	8.50 ± 0.02	8.51 ± 0.03
Sex
Male (%)	51.3 ± 0.5	50.9 ± 0.8	51.1 ± 0.7	50.9 ± 0.9
Female (%)	48.7 ± 0.5	49.1 ± 0.8	48.9 ± 0.7	49.1 ± 0.9
Physical Activity (mean days)	5.37 ± 0.03	5.64 ± 0.03	5.74 ± 0.03	6.05 ± 0.04
0 days (%)	6.9 ± 0.3	6.4 ± 0.4	5.5 ± 0.3	4.0 ± 0.4
1 days (%)	4.5 ± 0.2	3.3 ± 0.3	3.1 ± 0.3	2.5 ± 0.3
2 days (%)	11.4 ± 0.4	9.3 ± 0.4	8.1 ± 0.4	6.5 ± 0.5
3 days (%)	15.1 ± 0.4	13.3 ± 0.5	12.5 ± 0.4	10.9 ± 0.6
4 days (%)	12.1 ± 0.4	11.5 ± 0.5	12.6 ± 0.4	11.1 ± 0.6
5 days (%)	14.6 ± 0.4	16.4 ± 0.5	17.1 ± 0.5	17.9 ± 0.7
6 days (%)	4.7 ± 0.2	4.8 ± 0.3	6.5 ± 0.3	6.8 ± 0.5
7 days (%)	30.6 ± 0.5	35.0 ± 0.7	34.6 ± 0.6	40.1 ± 0.9
Health
Excellent (%)	62.1 ± 0.5	62.0 ± 0.7	60.3 ± 0.7	60.2 ± 0.9
Very good (%)	23.4 ± 0.5	24.3 ± 0.6	24.5 ± 0.6	24.3 ± 0.8
Good (%)	11.4 ± 0.4	11.3 ± 0.5	12.1 ± 0.5	12.5 ± 0.6
Fair (%)	2.7 ± 0.2	2.1 ± 0.2	2.6 ± 0.2	2.6 ± 0.3
Poor (%)	0.4 ± 0.1	0.3 ± 0.1	0.5 ± 0.1	0.4 ± 0.1
Missed School Days (mean)	4.59 ± 0.06	4.64 ± 0.7	4.72 ± 0.06	4.70 ± 0.09
None (%)	20.2 ± 0.5	20.7 ± 0.6	20.2 ± 0.5	19.8 ± 0.7
School-Related Problems (mean)	1.47 ± 0.01	1.46 ± 0.01	2.35 ± 0.05	2.51 ± 0.07
0 contacts (%)	70.9 ± 0.5	71.3 ± 0.7	67.4 ± 0.6	66.6 ± 0.9
1 contact (%)	11.5 ± 0.4	11.6 ± 0.5	11.1 ± 0.4	10.2 ± 0.6
2 contacts (%)	17.6 ± 0.5	17.1 ± 0.6	8.5 ± 0.4	8.9 ± 0.5

Data are adjusted for the complex sampling design of the National Survey of Children’s Health.

^*We did not include states with a policy enacted in 2003; these are data from states that would go on to enact a policy before follow-up