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. 2014 Jun 1;14:542. doi: 10.1186/1471-2458-14-542

Table 4.

Prevalence rates and proportions or mean values of each psychosocial and lifestyle variables for the four clusters among girls

  All Externalizing behavior Multiple risk behaviors Obese Reference
Prevalence
100%
15.0%
11.8%
6.7%
66.5%
Internalizing problemsa
0.20
0.36
0.40
0.18
0.12
Externalizing problemsa
0.26
1.00
0.80
0.22
0.00
Physical activitya, h/week
 
 
 
 
 
<2
0.41
0.31
0.73
0.52
0.36
2–3
0.30
0.30
0.19
0.30
0.32
>3
0.29
0.39
0.08
0.18
0.32
Sitting timea,b, h/day
 
 
 
 
 
mean value (CI)
6.3 (6.2–6.4)
5.4 (5.2–5.6)
9.5 (9.1–9.9)
7.3 (6.8–7.8)
5.9 (5.7–6.0)
Sleeping timea, h/day
 
 
 
 
 
<8 h
0.25
0.24
0.53
0.30
0.20
8–9 h
0.65
0.65
0.32
0.55
0.72
>9 h
0.10
0.11
0.15
0.16
0.09
BMIa,b, kg/m2
 
 
 
 
 
mean value (CI)
21.2 (21.1–21.3)
20.6 (20.4–20.8)
20.9 (20.7–21.2)
29.9 (29.4–30.5)
20.5 (20.4–20.6)
Smokinga
 
 
 
 
 
non-smoker
0.80
0.68
0.19
0.80
0.93
0.1–1.0 pack-years 0.12 0.29 0.26 0.13 0.06

ap < 0.001.

bContinuous variables used.

CI = confidence interval.

BMI = body mass index.