Table 1.

Participant Characteristics, Physical Activity, Overall Health, School Absences due to Illness or Injury, School-Related Problems (Number of Times Parents Contacted by School), and the Ability to Keep/Make Friends of Children in States with and Without a Recess Policy In 2018. Data are Shown as Mean or Percent ± Standard Error.

	No Policy	Policy
Age (mean years)	8.53 ± 0.04	8.58 ± 0.06
Sex
Male (%)	51.0 ± 1.1	50.9 ± 1.8
Female (%)	49.0 ± 1.1	49.1 ± 1.8
Physical Activity
0 days (%)	5.3 ± 0.6	6.3 ± 1.0
1–3 days (%)	37.0 ± 1.1	36.4 ± 1.8
4–6 days (%)	27.7 ± 1.0	28.7 ± 1.6
Every day (%)	30.1 ± 1.0	28.7 ± 1.6
Health
Excellent (%)	66.1 ± 1.1	65.0 ± 1.8
Very good (%)	24.4 ± 1.0	25.3 ± 1.6
Good (%)	8.0 ± 0.6	8.3 ± 1.1
Fair (%)	1.2 ± 0.3	1.3 ± 0.3
Poor (%)	0.3 ± 0.2	0.0 ± 0.0
Missed School Days
None (%)	26.5 ± 1.1	29.8 ± 1.7
1–3 days (%)	46.7 ± 1.1	44.4 ± 1.8
4–6 days (%)	16.3 ± 0.8	16.7 ± 1.4
7–10 days (%)	6.3 ± 0.5	6.0 ± 0.7
11+ days (%)	3.7 ± 0.4	2.9 ± 0.5
School-Related Problems
0 contacts (%)	69.7 ± 1.1	70.6 ± 1.6
1 contact (%)	16.0 ± 0.9	15.7 ± 1.3
2+ contacts (%)	14.3 ± 0.8	13.7 ± 1.1
Keeping/Making Friends
No difficulty (%)	77.3 ± 1.0	79.4 ± 1.4
A little difficulty (%)	19.2 ± 0.9	15.1 ± 1.2
A lot of difficulty (%)	3.6 ± 0.4	5.4 ± 0.8

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