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Table 1 Characteristics of the study population by outdoor playing time (n = 365)

From: Where they live, how they play: Neighborhood greenness and outdoor physical activity among preschoolers

Variables

Cases

/mean (S.D)

percent

 

Outdoor playing time a

   

active

P -value b

quiet

P -value

NDVI

4.5 (1.1)

     

Gender

      

Girls

175

48%

38.5

< 0.01

18.4

0.85

Boys

190

52%

45.2

 

18.1

 

Race/ethnicity

      

non-white

142

39%

39.4

0.01

15.5

0.02

white

223

61%

43.6

 

20.0

 

Education

      

less than college degree

141

39%

42.4

0.69

19.3

0.40

college degree or higher

224

61%

41.7

 

17.6

 

Parent's BMI

26.6 (6.5)

     

Parental time spent

playing with child

      

Low

66

18%

35.0

< 0.01

15.0

0.06

Medium

153

42%

40.6

 

17.2

 

High

146

40%

46.5

 

20.9

 

Parental time spent

transporting child to PA

      

Low

184

50%

39.0

0.01

13.6

< 0.01

Medium

112

31%

44.3

 

21.1

 

High

69

19%

46.3

 

26.0

 
  1. a unit: minutes per day
  2. b P-value of two-way ANOVA test to test the difference of means between categories.