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Table 1 Physical activity and lifestyle of Balearic Islands adolescents stratified by sex and age

From: Association between sedentary behaviour and socioeconomic factors, diet and lifestyle among the Balearic Islands adolescents

  

Age group

  

Total

12-13

14-15

16-17

P

Boys

n

939

240

445

254

 
 

Physical activity 1 (%)†

     
 

 Inactive

22.0

17.6

23.2

24.0

NS

 

 Active

78.0

82.4

76.8

76.0

 
 

Physical activity practice

     
 

 Moderate

     
 

  Did not engage (%)†

8.9

7.2

7.6

12.8

*

 

  Mean duration (min/week)‡

215.1 ± 250.5

264.9 ± 330.2a

192.6 ± 200.7a

208.4 ± 237.7

**

 

  Time spent (% total)†

35.7 ± 28.6

35.2 ± 24.6

35.9 ± 27.3

35.7 ± 28.6

NS

 

 Vigorous

     
 

  Did not engage (%)†

11.0

8.0

11.1

13.6

NS

 

  Mean duration (min/week)‡

502.8 ± 401.4

558.7 ± 454.2

486.6 ± 387.3

477.8 ± 367.6

NS

 

  Time spent (%)†

64.3 ± 27.0

64.8 ± 24.6

64.1 ± 27.3

64.3 ± 28.6

NS

 

Media-screen time (%)†

     
 

 <2 h/d

17.6

21.2

16.0

17.1

*

 

 2-4 h/d

42.6

47.7

41.1

40.2

 
 

 ≥4 h/d

39.8

31.1

42.8

42.7

 
 

Homework time (%)†

     
 

 <1 h/d

16.3

13.8

19.1

13.8

NS

 

 1-3 h/d

69.7

69.7

69.3

70.4

 
 

 ≥3 h/d

14.0

16.5

11.6

15.8

 
 

Sleep time (%)†

     
 

 <7 h/d

9.5

7.1

9.2

12.2

NS

 

 ≥7 h/d

90.5

92.9

90.8

87.8

 

Girls

n

1022

255

503

264

 
 

Physical activity 1 (%)†

     
 

 Inactive

50.8

41.4

51.9

57.3

**

 

 Active

49.2

58.6

48.1

42.7

 
 

Physical activity practice

     
 

 Moderate

     
 

  Did not engage (%)†

12.7

7.9

11.0

20.0

***

 

  Mean duration (min/week)‡

169.1 ± 165.7

188.5 ± 210.5

164.1 ± 147.1

158.8 ± 146.1

*

 

  Time spent (% total)†

50.4 ± 33.7

47.2 ± 31.6

52.0 ± 33.7

50.6 ± 35.8

NS

 

 Vigorous

     
 

  Did not engage (%)†

28.4

20.3

29.4

33.8

**

 

  Mean duration (min/week)‡

354.3 ± 356.2

422.6 ± 470.4a,b

338.9 ± 313.8a

308.5 ± 267.2b

**

 

  Time spent (%)†

49.6 ± 33.7

52.8 ± 31.6

48.0 ± 33.7

49.4 ± 35.8

NS

 

Media-screen time (%)†

     
 

 <2 h/d

21.2

28.0

17.5

21.6

**

 

 2-4 h/d

38.7

41.0

36.3

40.9

 
 

 ≥4 h/d

40.2

31.0

46.2

37.5

 
 

Homework time (%)†

     
 

 <1 h/d

8.3

8.9

10.0

4.3

**

 

 1-3 h/d

66.0

68.5

67.6

60.9

 
 

 ≥3 h/d

25.7

22.6

22.4

34.8

 
 

Sleep time (%)†

     
 

 <7 h/d

8.9

3.1

9.7

12.9

***

 

 ≥7 h/d

91.1

96.9

90.3

87.1

 
  1. 1Physical inactivity was defined as <300 min/week of moderate and vigorous physical activity [7]. Values are mean ± SD and%. Significant differences between age groups by: †χ 2 and ‡ANOVA: *p < 0.05; **p < 0.01; ***p < 0.001. NS: not significant. Significant differences between pairs of means by Bonferroni’s post-hoc test (P < 0.05): a‘12-13’ vs. ‘14-15’; b‘12-13’ vs. ‘16-17’.
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BMC Public Health

ISSN: 1471-2458

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