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Table 1 Descriptive statistics of physical activity, sedentary and travel behaviour self-report measures for Hong Kong adolescents

From: Repeatability of self-report measures of physical activity, sedentary and travel behaviour in Hong Kong adolescents for the iHealt(H) and IPEN – Adolescent studies

Item/Measure [theoretical range] Overall sample (N = 68) Boys (n = 36) Girls (n = 32)
  Mean (SD) Mean (SD) Mean (SD)
Setting/domain: SCHOOL    
Physical Education (PE)    
PE classes (days/week) [0–5] 1.3 (0.7) 1.4 (0.8) 1.3 (0.6)
Length of PE period (min/class) 58.2 (18.8) 57.7 (17.6) 58.7 (20.0)
Total PE time (min/week) 74.3 (45.3) 77.3 (53.2) 71.5 (37.3)
Recess at school (days/week) [0–5] 4.8 (0.8) 4.7 (1.0) 4.9 (0.5)
Total length of recess (min/day) 21.3 (9.6) 20.8 (8.6) 21.7 (10.5)
Total recess time (min/week) 104.0 (50.6) 100.7 (46.0) 106.9 (53.9)
Number of sports teams or after-school physical activity classes at school in past year [0–4] 1.1 (0.9) 1.2 (0.9) 0.9 (0.8)
Setting/domain: OUT-OF-SCHOOL    
Leisure-time physical activity (PA)    
≥ 60 min/day of out-of-school PA in past 7 days (days/week) [0–7] 1.8 (2.0) 2.0 (2.2) 1.1 (1.8)
≥ 60 min/day of out-of-school PA in usual week (days/week) [0–7] 2.0 (2.0) 2.4 (2.2) 1.6 (1.8)
Average score on two out-of-school PA [0–7] 1.9 (1.8) 2.2 (2.0) 1.5 (1.7)
Number of sports teams or after-school physical activity classes out-of-school in past year [0–4] 0.9 (1.0) 0.9 (1.0) 0.9 (1.0)
Sedentary behaviour (hours/day) [0–4]    
Watching TV/videos/DVD 1.1 (1.0) 1.0 (0.8) 1.1 (1.1)
Playing sedentary computer or video games 0.6 (0.8) 0.8 (0.9) 0.3 (0.6)
Using internet/emailing/other electronic media for leisure 0.7 (0.7) 0.5 (0.5) 0.8 (0.8)
Doing homework 1.8 (1.1) 1.7 (1.1) 1.9 (1.2)
Reading a book or magazine (not for school) 0.6 (0.9) 0.6 (0.9) 0.7 (0.8)
Riding in a car, bus, etc. 0.6 (0.9) 0.7 (0.7) 0.6 (0.6)
Total screen time (hours/day) [0–12] 2.3 (1.7) 2.3 (1.4) 2.3 (1.9)
Total sedentary time (hours/day) [0–24] 5.3 (2.5) 5.2 (2.3) 5.4 (2.6)
Setting/domain: TRANSPORTATION    
Walking or cycling to/from destinations (times/week) [0–4]    
Indoor or exercise facility 0.5 (0.8) 0.5 (0.8) 0.5 (0.8)
Friend’s or relative house 0.5 (0.8) 0.4 (0.8) 0.5 (0.8)
Outdoor recreation place 0.6 (0.9) 0.7 (0.9) 0.6 (0.9)
Food store or restaurant/café 1.5 (1.5) 1.6 (1.5) 1.4 (1.4)
Other retail stores 1.1 (1.3) 1.0 (1.2) 1.2 (1.3)
Non-school social or educational activities 0.5 (0.8) 0.5 (0.9) 0.5 (0.7)
Public transportation stop 2.3 (1.7) 2.2 (1.7) 2.4 (1.6)
Work 0.0 (0.0) 0.0 (0.0) 0.0 (0.0)
Others 0.0 (0.0) 0.0 (0.0) 0.0 (0.0)
Total score on walking or cycling to/from destinations (times/week) [0–28] 6.9 (4.5) 6.9 (4.7) 7.0 (4.2)
Transportation modes to/from school (days/week) [0–5]    
To school    
Walk 1.9 (2.3) 1.4 (2.2) 2.3 (2.4)
Bicycle 0.1 (0.3) 0.1 (0.4) 0.0 (0.0)
Public transport 3.0 (2.3) 3.2 (2.2) 2.8 (0.2)
Taxi 0.1 (0.3) 0.1 (0.4) 0.0 (0.0)
School bus 0.1 (0.3) 0.1 (0.4) 0.0 (0.0)
Family car 0.4 (1.3) 0.7 (1.6) 0.2 (0.7)
From school    
Walk 2.1 (2.3) 1.7 (1.6) 2.6 (2.3)
Bicycle 0.1 (0.6) 0.2 (0.8) 0.0 (0.0)
Public transport 3.1 (2.3) 3.5 (2.1) 2.7 (2.3)
Taxi 0.1 (0.3) 0.1 (0.4) 0.0 (0.0)
School bus 0.1 (0.3) 0.1 (0.4) 0.0 (0.0)
Family car 0.1 (0.2) 0.1 (0.2) 0.0 (0.0)
Total frequency of active transportation to/from school (times/week) (0–10) 4.0 (4.5) 3.2 (4.2) 4.8 (4.6)