Adolescents |
Gender |
Male |
99 |
50.8 |
145 |
48.3 |
0.596
|
244 |
49.3 |
|
Female |
96 |
49.2 |
155 |
51.7 |
|
251 |
50.7 |
Age group (years) |
12-13 |
86 |
44.1 |
119 |
39.7 |
0.050
|
205 |
41.4 |
|
14-15 |
73 |
37.4 |
96 |
32.0 |
|
169 |
34.1 |
|
16-17 |
36 |
18.5 |
85 |
28.3 |
|
121 |
24.4 |
Nutritional status |
Normal weight |
106 |
57.6 |
167 |
60.5 |
0.535
|
273 |
59.3 |
|
Overweight |
78 |
42.4 |
109 |
39.5 |
|
187 |
40.7 |
Perception of time to walk to school (minutes) |
≤ 10 |
83 |
43.9 |
63 |
21.1 |
< 0.001
|
146 |
29.9 |
|
11-20 |
43 |
22.8 |
80 |
26.8 |
|
123 |
25.2 |
|
21-30 |
26 |
13.8 |
43 |
14.4 |
|
69 |
14.1 |
|
≥ 31 |
37 |
19.6 |
113 |
37.8 |
|
150 |
30.7 |
Leisure time, moderate to vigorous physical activity (min/week) |
< 300 |
110 |
56.4 |
188 |
62.7 |
0.165
|
298 |
60.2 |
|
≥ 300 |
85 |
43.6 |
112 |
37.3 |
|
197 |
39.8 |
Active commuting to school (≥ 1 times/week)
|
No |
37 |
19.7 |
143 |
47.8 |
< 0.001
|
180 |
37.0 |
|
Yes |
151 |
80.3 |
156 |
52.2 |
|
307 |
63.0 |
Period spend in school/studying |
Morning |
105 |
55.6 |
217 |
73.1 |
< 0.001
|
322 |
66.3 |
|
Afternoon/Evening |
84 |
44.4 |
84 |
26.9 |
|
164 |
33.7 |
Parents or legal guardian |
Father |
15 |
7.7 |
55 |
18.3 |
< 0.001
|
70 |
14.1 |
|
Mother |
151 |
77.4 |
220 |
73.3 |
|
371 |
74.9 |
|
Other
|
29 |
14.9 |
25 |
8.3 |
|
54 |
10.9 |
Car ownership |
No |
99 |
50.8 |
5 |
1.7 |
< 0.001
|
104 |
21.0 |
|
Yes |
96 |
49.2 |
295 |
98.3 |
|
391 |
79.0 |
Active commuting through the neighborhood (≥ 1 times/ week, ≥ 10 min)
|
No |
52 |
26.7 |
145 |
48.3 |
< 0.001
|
197 |
39.8 |
|
Yes |
143 |
73.3 |
155 |
51.7 |
|
298 |
60.2 |
Total leisure time physical activity (min/week) |
< 150 |
166 |
85.6 |
208 |
69.6 |
< 0.001
|
374 |
75.9 |
|
≥ 150 |
28 |
14.4 |
91 |
30.4 |
|
119 |
24.1 |
Adolescents' perception |
Traffic |
Is there a lot of traffic in your neighborhood, for you to walk? |
No |
102 |
52.3 |
173 |
57.7 |
0.241
|
275 |
55.6 |
|
Yes |
93 |
47.7 |
127 |
42.3 |
|
220 |
44.4 |
Is the speed of traffic usually low? |
No |
96 |
49.7 |
143 |
48.1 |
0.730
|
239 |
48.8 |
|
Yes |
97 |
50.3 |
154 |
51.9 |
|
251 |
51.2 |
Do drivers drive over the speed limit? |
No |
50 |
25.8 |
91 |
30.4 |
0.263
|
141 |
28.6 |
|
Yes |
144 |
74.2 |
208 |
69.6 |
|
352 |
71.4 |
Is there a lot of smoke/pollution from exhaust fumes? |
No |
100 |
51.3 |
166 |
55.3 |
0.377
|
266 |
53.7 |
|
Yes |
95 |
48.7 |
134 |
44.7 |
|
229 |
46.3 |
Are streets well lit at night? |
No |
67 |
34.4 |
125 |
41.7 |
0.103
|
192 |
38.8 |
|
Yes |
128 |
65.6 |
175 |
58.3 |
|
303 |
61.2 |
Can pedestrians and bicyclists be seen by people from inside their homes? |
No |
54 |
27.7 |
83 |
27.7 |
0.995
|
137 |
27.7 |
|
Yes |
141 |
72.3 |
217 |
72.3 |
|
358 |
72.3 |
Are there crosswalks and signals to help pedestrians cross the streets? |
No |
84 |
43.1 |
129 |
43.0 |
0.987
|
213 |
43.0 |
|
Yes |
111 |
56.9 |
171 |
57.0 |
|
282 |
57.0 |
Do you feel safe when crossing the streets of your neighborhood? |
No |
89 |
45.6 |
117 |
39.0 |
0.143
|
206 |
41.6 |
|
Yes |
106 |
54.4 |
183 |
61.0 |
|
289 |
58.4 |
Crime |
Is there a lot of crime in your neighborhood? |
No |
86 |
44.1 |
137 |
45.7 |
0.733
|
223 |
45.1 |
|
Yes |
109 |
55.9 |
163 |
54.3 |
|
272 |
54.9 |
Does crime make it unsafe to walk during the day? |
No |
120 |
61.5 |
198 |
66.0 |
0.312
|
318 |
64.2 |
|
Yes |
75 |
38.5 |
102 |
34.0 |
|
177 |
35.8 |
Does crime make it unsafe to walk at night? |
No |
23 |
11.8 |
34 |
11.3 |
0.875
|
57 |
11.5 |
|
Yes |
172 |
88.2 |
266 |
88.7 |
|
438 |
88.5 |
Do you worry about being alone around your home? |
No |
140 |
71.8 |
216 |
72.2 |
0.914
|
356 |
72.1 |
|
Yes |
55 |
28.2 |
83 |
27.8 |
|
138 |
27.9 |
Do you worry about being with a friend around your home? |
No |
152 |
77.9 |
233 |
77.7 |
0.941
|
385 |
77.8 |
|
Yes |
43 |
22.1 |
67 |
22.3 |
|
110 |
22.2 |
Do you worry about being around your home because you are afraid of being robbed? |
No |
93 |
47.7 |
132 |
44.0 |
0.420
|
225 |
45.5 |
|
Yes |
102 |
52.3 |
168 |
56.0 |
|
270 |
54.5 |
Do you worry about being in parks around your home because you are afraid of being robbed? |
No |
85 |
43.6 |
136 |
45.3 |
0.703
|
221 |
44.6 |
|
Yes |
110 |
56.4 |
164 |
164 |
|
274 |
55.4 |
Sum of items for traffic and crime |
Score for perception of safety related to traffic |
Tertile 1 |
100 |
51.8 |
148 |
50.0 |
0.194
|
248 |
50.7 |
|
Tertile 2 |
47 |
24.4 |
52 |
17.6 |
|
99 |
20.2 |
|
Tertile 3
|
46 |
23.8 |
96 |
32.4 |
|
142 |
29.0 |
Score for perception of safety related to crime |
Tertile 1 |
85 |
43.6 |
138 |
46.2 |
0.976
|
223 |
45.1 |
|
Tertile 2 |
82 |
42.1 |
111 |
37.1 |
|
193 |
39.1 |
|
Tertile 3 |
28 |
14.4 |
50 |
16.7 |
|
78 |
15.8 |
Score for overall perception of safety (traffic + crime) |
Tertile 1 |
85 |
44.0 |
124 |
42.0 |
0.478
|
209 |
42.8 |
|
Tertile 2 |
49 |
25.4 |
70 |
23.7 |
|
119 |
24.4 |
|
Tertile 3 |
59 |
30.6 |
101 |
34.2 |
|
160 |
32.8 |
Parents or legal guardian's perception |
Traffic |
Is there a lot of traffic in the neighborhood for the adolescent to walk? |
No |
100 |
51.3 |
139 |
46.3 |
0.282
|
239 |
48.3 |
|
Yes |
95 |
48.7 |
161 |
53.7 |
|
256 |
51.7 |
Is the traffic speed usually low? |
No |
116 |
59.5 |
185 |
61.7 |
0.639
|
301 |
60.8 |
|
Yes |
79 |
40.5 |
115 |
38.3 |
|
194 |
39.2 |
Do drivers drive over the speed limit? |
No |
39 |
20.0 |
86 |
28.8 |
0.029
|
125 |
25.3 |
|
Yes |
156 |
80.0 |
213 |
71.2 |
|
369 |
74.7 |
Is there a lot of smoke/pollution from exhaust fumes? |
No |
107 |
54.9 |
180 |
60.0 |
0.259
|
287 |
58.0 |
|
Yes |
88 |
45.1 |
120 |
40.0 |
|
208 |
42.0 |
Are streets well lit at night? |
No |
79 |
40.5 |
150 |
50.0 |
0.039
|
229 |
46.3 |
|
Yes |
116 |
59.5 |
150 |
50.0 |
|
266 |
53.7 |
Can pedestrians and bicyclists be seen by people from inside their homes? |
No |
65 |
33.3 |
129 |
43.0 |
0.031
|
194 |
39.2 |
|
Yes |
130 |
66.7 |
171 |
57.0 |
|
301 |
60.8 |
Are there crosswalks and signals to help pedestrians cross the streets? |
No |
109 |
55.9 |
154 |
51.3 |
0.320
|
263 |
53.1 |
|
Yes |
86 |
44.1 |
146 |
48.7 |
|
232 |
46.9 |
Do you think it is safe for the adolescent to cross the streets of your neighborhood? |
No |
130 |
66.7 |
181 |
60.3 |
0.154
|
311 |
62.8 |
|
Yes |
65 |
33.3 |
119 |
39.7 |
|
184 |
37.2 |
Crime |
Is there a lot of crime in your neighborhood? |
No |
73 |
37.4 |
113 |
37.7 |
0.959
|
186 |
37.6 |
|
Yes |
122 |
62.6 |
187 |
62.3 |
|
309 |
62.4 |
Does crime make it unsafe to walk during the day? |
No |
86 |
44.1 |
113 |
37.7 |
0.154
|
199 |
40.2 |
|
Yes |
109 |
55.9 |
187 |
62.3 |
|
296 |
59.8 |
Does crime make it unsafe to walk at night? |
No |
14 |
7.2 |
19 |
6.3 |
0.712
|
33 |
6.7 |
|
Yes |
181 |
92.8 |
281 |
93.7 |
|
462 |
93.3 |
Do you worry about the adolescent being alone around your home? |
No |
88 |
45.4 |
146 |
48.7 |
0.472
|
234 |
47.4 |
|
Yes |
106 |
54.6 |
154 |
51.7 |
|
260 |
52.6 |
Do you worry about the adolescent being with a friend around your home? |
No |
89 |
45.6 |
146 |
48.7 |
0.510
|
235 |
47.5 |
|
Yes |
106 |
54.4 |
154 |
51.3 |
|
260 |
52.5 |
Do you worry about the adolescent being around your home because you are afraid he/she will be robbed? |
No |
30 |
15.4 |
48 |
16.0 |
0.854
|
78 |
15.8 |
|
Yes |
165 |
84.6 |
252 |
84.0 |
|
417 |
84.2 |
Do you worry about the adolescent being in parks around your home because you are afraid he/she will be robbed? |
No |
18 |
9.2 |
45 |
15.0 |
0.060
|
63 |
12.7 |
|
Yes |
177 |
90.8 |
255 |
85.0 |
|
432 |
87.3 |
Sum of items for traffic and crime |
Score for perception of safety related to traffic |
Tertile 1 |
99 |
50.8 |
134 |
44.8 |
0.250
|
233 |
47.2 |
|
Tertile 2 |
64 |
32.8 |
110 |
36.8 |
|
174 |
35.2 |
|
Tertile 3
|
32 |
16.4 |
55 |
18.4 |
|
87 |
17.6 |
Score for perception of safety related to crime |
Tertile 1 |
82 |
42.3 |
114 |
38.0 |
0.638
|
196 |
39.7 |
|
Tertile 2 |
70 |
36.1 |
124 |
41.3 |
|
194 |
39.3 |
|
Tertile 3
|
42 |
21.6 |
62 |
20.7 |
|
104 |
21.1 |
Score for overall perception of safety (traffic + crime) |
Tertile 1 |
70 |
36.1 |
105 |
35.1 |
0.785
|
175 |
35.5 |
|
Tertile 2 |
69 |
35.6 |
118 |
39.5 |
|
187 |
37.9 |
|
Tertile 3f |
55 |
28.4 |
76 |
25.4 |
|
131 |
26.6 |