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Table 2 Adjusted§ mean duration of specific activities by age group

From: Assessment of intensity, prevalence and duration of everyday activities in Swiss school children: a cross-sectional analysis of accelerometer and diary data

  

Activity duration in min/day

Activity

 

All Children

Kindergarten/1st grade (6/7 years old)

4th grade (9/10 years old)

8th grade (9/10 years old)

P $

  

Mean§ (95% CI)

Mean§ (95% CI)

Mean§ (95% CI)

Mean§ (95% CI)

 

Screen recreation

 

104.4 (98.8–110.1)

71.0 (62.3–79.7)

105.9 (96.9–115.0)

135.8 (123.2–148.5)

< 0.001

 

Television

76.2 (71.2–81.0)

56.8 (49.1–64.5)

77.0 (68.5–85.5)

94.3 (83.1–105.5)

< 0.001

 

Computer

28.2 (25.3–31.1)

14.2 (10.7–17.6)

28.8 (24.2–33.4)

41.4 (35.0–47.7)

< 0.001

Any other quiet activity

 

391.7 (384.0–399.3)

364.1 (350.3–378.0)

391.6 (378.9–404.2)

418.9 (403.9–434.0)

0.002

 

Leisure time activities£

238.4 (231.2–245.7)

249.9 (237.1–262.7)

247.3 (235.6–259.1)

216.9 (203.9–230.0)

< 0.001

 

Attending school/homework#

261.2 (254.0–268.5)

200.2 (189.3–211.1)

256.1 (244.9–267.2)

327.5 (313.7–341.3)

< 0.001

Active Transportation

 

56.0 (52.3–59.7)

54.9 (48.7–61.1)

51.1 (45.4–56.7)

62.52 (54.8–70.3)

0.029&

 

Walking

40.6 (37.3–42.8)

41.9 (36.5–47.4)

33.5 (28.6–38.4)

47.2 (40.1–54.4)

0.198

 

Cycling/inline skating

15.4 (13.3–17.6)

13.0 (9.6–16.4)

17.6 (13.6–21.5)

15.4 (11.4–19.3)

0.394

Recess#

 

25.1 (22.6–27.7)

9.9 (7.2–12.7)

27.5 (23.6–31.4)

37.6 (31.0–44.3)

< 0.001

Vigorously intense unstructured play

 

42.9 (38.0–47.8)

42.7 (34.7–50.7)

49.6 (41.4–57.7)

35.7 (27.4–44.0)

0.035$

 

Indoors

9.7 (7.5–11.8)

14.1 (9.7–18.6)

7.1 (3.7–10.4)

8.1 (4.5–11.8

0.037

 

Outdoors

33.3 (28.9–37.7)

28.5 (21.6–35.5)

42.5 (34.4–50.6)

27.6 (19.5–35.7)

0.853

Attending PE° classes#

 

27.4 (23.1–31.7)

21.2 (13.2–29.2)

24.8 (19.3–30.2)

36.3 (28.5–44.2)

0.008

Sports training

 

10.7 (8.3–13.0)

4.7 (2.3–7.1)

10.8 (6.7–15.0)

16.5 (11.3–21.7)

< 0.001

  1. § Estimates adjusted for sex, maternal education, season, day of the week, mean daily temperature, sum of precipitation and subject (as random effect)
  2. $ Test for trend
  3. £ Leisure time activities: playing a music instrument, reading, quietly playing and riding a car
  4. # Duration calculated excluding weekends
  5. &8th graders compared to kindergarten/1st graders and 4th graders
  6. ° Physical education