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Table 2 Test-retest ICCsa of subscales and individual items of the respecified NEWS-CC

From: Adaptation and evaluation of the neighborhood environment walkability scale for youth for Chinese children (NEWS-CC)

Subscale / Item ICC (95%CI)
A. Land use mix-diversity 0.86 (0.84–0.88)b
 1. convenience store 0.61 (0.56–0.66)
 2. super market 0.68 (0.64–0.72)
 3. hardware store 0.76 (0.73–0.79)
 4. public market 0.74 (0.71–0.77)
 5. laundry 0.70 (0.66–0.73)
 6. clothing store 0.71 (0.67–0.74)
 7. post office 0.77 (0.74–0.80)
 8. library 0.79 (0.76–0.82)
 9. primary school 0.74 (0.71–0.77)
 10. secondary school 0.71 (0.68–0.75)
 11. bookstore 0.67 (0.63–0.70)
 12. fast food restaurant 0.68 (0.64–0.72)
 13. coffee shop 0.67 (0.63–0.71)
 14. bank/finance center 0.62 (0.58–0.66)
 15. non-fast food restaurant 0.61 (0.57–0.65)
 16. video store 0.67 (0.63–0.71)
 17. pharmacy 0.72 (0.69–0.75)
 18. hair salon 0.72 (0.68–0.75)
 19. any office/construction site 0.59 (0.54–0.63)
 20. bus stop/MTR 0.55 (0.50–0.60)
B. Recreational facilities 0.80 (0.77–0.83)b
 1. Indoor leisure or sport facilities 0.50 (0.45–0.55)
 2. Beach, lake, river or creek 0.62 (0.58–0.66)
 3. Cycling/ hiking/ walking trail 0.57 (0.52–0.62)
 4. Basketball court 0.71 (0.67–0.74)
 5. Other playground/ sports field 0.60 (0.55–0.64)
 6. YMCA 0.63 (0.59–0.67)
 7. Youth Societies 0.62 (0.58–0.66)
 8. Swimming pool 0.76 (0.73–0.79)
 9. Jogging trail 0.65 (0.60–0.69)
 10. Schools with sports fields open to public 0.48 (0.43–0.53)
 11. Sitting-out area 0.52 (0.47–0.57)
 12. Parks 0.64 (0.60–0.68)
 13. Children’s playground 0.66 (0.62–0.70)
 14. Open places (grass, sands, clay) 0.60 (0.55–0.64)
C. Residential density 0.66 (0.62–0.70)c
 1. detached single-family houses 0.59 (0.54–0.63)
 2. multi-family houses (1–3 stories) 0.64 (0.60–0.68)
 3. apartments with 4–6 stories 0.62 (0.58–0.66)
 4. apartments with 7–12 stories 0.58 (0.54–0.63)
 5. apartments with 13–20 stories 0.67 (0.63–0.70)
 6. apartments with > 20 stories 0.72 (0.69–0.75)
D. Aesthetics 0.62 (0.57–0.66)b
 1. trees 0.56 (0.52–0.61)
 2. interesting things 0.53 (0.48–0.58)
 3. beautiful natural sceneries 0.60 (0.55–0.64)
 4. beautiful buildings 0.54 (0.49–0.59)
 5. gardens on roof of buildings 0.52 (0.47–0.57)
E. Land use mix-access 0.56 (0.50–0.60)b,d
 1. easy to walk to shops 0.51 (0.46–0.56)
 2. easy to go to various places 0.41 (0.18–0.59)
3. easy to walk to public transport 0.33 (0.09–0.53)
F. Street connectivity 0.47 (0.25–0.64)b,d
 1. not many cul-de-sac 0.41 (0.19–0.59)
2. short distance between street crossings 0.18 (−0.07–0.41)
 3. many alternative routes 0.54 (0.34–0.69)
G. Walking facility 0.54 (0.34–0.70)b
 1. sidewalks on most streets 0.43 (0.21–0.61)
 2. sidewalks separated by parked cars 0.54 (0.34–0.69)
 3. sidewalks separated by barriers or grass 0.69 (0.53–0.80)
 4. covered sidewalks 0.64 (0.47–0.77)
H. Crime safety 0.68 (0.63–0.71)b
 1. unsafe to be outdoors in evenings 0.41 (0.35–0.47)
 2. afraid of being outside alone near home 0.59 (0.54–0.63)
 3. afraid of being outside with friends near home 0.56 (0.51–0.61)
 4. afraid of being outside on nearby streets 0.57 (0.52–0.61)
 5. afraid of being outside in nearby parks 0.60 (0.55–0.64)
 6. people make me feel unsafe 0.47 (0.42–0.52)
I. Traffic safety 0.52 (0.47–0.57)b
 1. good lighting in evenings 0.42 (0.36–0.48)
 2. easy to see pedestrians or cyclists 0.60 (0.41–0.73)
 3. crosswalks or signals 0.50 (0.45–0.55)
 4. bridges or tunnels 0.54 (0.49–0.59)
J. Pollution 0.69 (0.65–0.73)b
 1. much exhaust gas 0.54 (0.49–0.59)
 2. smokers in streets 0.54 (0.49–0.59)
 3. fume from restaurants 0.50 (0.44–0.55)
 4. noise from worksite 0.58 (0.54–0.63)
  1. a: test-retest ICCs were calculated by one-way model single-measure intraclass correlation coefficients;
  2. b: computing based on average score of items in the subscale
  3. c: computing based on the formula of (C1 + C2*12 + C3*25 + C4*50 + C5*75 + C6*100) [20]
  4. d: the ICC value of subscale E (Land use mix-access) was calculated based on items E1 and E2; the ICC value of subscale F (Street connectivity) was calculated based on items F1 and F3