Table 2 Descriptive analysis (mean [SD] or n [%]) of socio-demographic and accelerometry variables.

From: Association between school environment with sedentary behavior and physical activity intensity in children

Variable

Total

(n = 515)

Boys

(n = 265)

Girls

(n = 297)

p- value

Age (Years)

10.07 (0.52)

9.78 (0.41)

10.34 (0.47)

 < 0.001

Ethnicity (%)*

   

0.658

White

383 (74.4)

203 (76.7)

180 (72.0)

 

Black

38 (7.4)

17 (6.4)

21 (8.4)

 

Brown

72 (14.0)

35 (13.2)

37 (14.8)

 

Other

22 (4.3)

10 (3.8)

12 (4.8)

 

Annual family income (BRL)**, (%)

   

 < 0.001

 ≤ BRL 19.620

193 (37.5)

95 (35.8)

116 (39.2)

 

BRL 19.621 to R$ 32.700

134 (26.0)

78 (29.5)

67 (22.6)

 

BRL 32.701 to BRL 58.860

113 (21.9)

58 (22.1)

65 (21.6)

 

 ≥ BRL 58.861

75 (14.6)

34 (12.6)

49 (16.6)

 

Accelerometry (min/day)***

Sedentary behavior

200.30 (27.50)

196.8 (28.1)

202.9 (26.71)

 < 0.001

Light-intensity physical activity

134.91 (52.72)

136.0 (20.76)

133.86 (21.41)

0.260

Moderate-intensity physical activity

16.58 (6.59)

19.50 (6.80)

14.08 (5.14)

 < 0.001

Vigorous-intensity physical activity

7.02 (4.48)

8.98 (5.01)

5.20 (2.58)

 < 0.001

Moderate-to- vigorous physical activity

23.80 (10.56)

28.49 (11.20)

19.29 (7.42)

 < 0.001

  1. SD standard deviation.
  2. *(%) percentage.
  3. **BRL Brazilian real.
  4. ***min/day minutes per day.