School-Based Health Center Intervention Improves Body Mass Index in Overweight and Obese Adolescents
Table 4
Comparison of anthropometric and behavioral changes between ACTION and standard care groups.
Measures
ACTION group
Standard care group
Between-group difference
Mean (95% CI)
Mean (95% CI)
Mean (95% CI)
value
Height (cm)
Pre
164.4 (161.2, 167.5)
163.1 (158.4, 167.8)
Post
165.0 (161.7, 168.2)
164.1 (159.1, 169.0)
Difference
0.6 (0.0, 1.2)
1.0 (0.3, 1,6)
−0.4 (−1.2, 0.5)
0.31
Weight (kg)
Pre
78.5 (73.7, 83.4)
78.1 (70.3, 85.9)
Post
80.2 (74.9, 85.6)
80.6 (72.5, 88.8)
Difference
1.7 (0.2, 3.2)
2.5 (0.8, 4.3)
−0.8 (−3.1, 1.4)
0.12
BMI percentiled
Pre
97.0 (92.8, 97.4)
96.2 (91.6, 97.8)
Post
96.3 (92.1, 97.4)
96.1 (91.9, 98.5)
Difference
−0.3 (−0.6, 0.3)
0.2 (−0.1, 0.8)
−0.6 (−1.2, 0.1 )
0.04
Waist circumference (cm)
Pre
89.9 (86.6, 93.2)
89.9 (84.9, 94.8)
Post
89.9 (86.3, 93.4)
91.5 (86.5, 96.5)
Difference
0.0 (−1.4, 1.4)
1.7 (0.4, 2.9)
−1.7 (−3.6, 0.2)
0.04
YAQa calories/day
Pre
1916 (1807, 2225)
2270 (1852, 2687)
Post
2086 (1700, 2473)
2017 (1642, 2392)
Difference
170 (−300, 641)
−252 (−729, 224)
422 (−239, 1084)
0.21
YAQa sweetened drinks (glasses/day)d
Pre
0.76 (0.34, 1.08)
0.58 (0.30, 0.79)
Post
0.19 (0.15, .44)
0.43 (0.16, 0.59)
Difference
−0.12 (−0.47, −0.08)
−0.16 (−0.57, 0.22)
−0.08 (−0.57, 0.41)
0.23
YAQa fruits and vegetables (servings/day)d
Pre
2.81 (2.06, 4.36)
1.91 (1.70, 3.52)
Post
2.48 (2.04, 3.44)
1.71 (1.46, 2.12)
Difference
−0.22 (−0.72, 0.41)
−1.16 (−0.56, −0.02)
0.42 (−0.32, 1.26 )
0.47
MVPAb by 3DPARc (30 minute blocks/day)d
Pre
1.4 (0.7, 3.7)
2.0 (1.0, 3.3)
Post
1.7 (0.7, 3.3)
1.0 (0.0, 4.0)
Difference
0.0 (−2.0, 0.7)
−0.9 (−1.3, 0.4)
0.6 (−1.6, 2.0)
0.63
MVPAb by accelerometer (mins/day)
Pre
49.4 (37.7, 61.2)
64.7 (41.8, 87.6)
Post
65.9 (47.6, 84.2)
57.6 (39.9, 75.4)
Difference
16.5 (−2.8, 35.8)
−7.1 (−22.9, 8.7)
23.6 (−3.4, 50.5 )
0.08
Television weekday viewing (hours/day)d
Pre
1.8 (1.0, 2.4)
1.6 (1.4, 2.2)
Post
1.0 (0.6, 1.4)
1.8 (1.1, 2.4)
Difference
−0.4 (−1.0, 0.2)
0.2 (−0.3, 0.6)
−0.7 (−1.6, 0.0)
0.03
Television weekend viewing (hours/day)d
Pre
1.9 (1.5, 3.0)
2.2 (1.5, 5.5)
Post
1.6 (0.8, 3.0)
3.0 (2.2, 3.0)
Difference
−0.1 (−0.8, 0.0)
0.5 (−2.0, 1.5)
−0.6 (−1.9, 1.3)
0.17
YAQ: Youth Adolescent Questionnaire food frequency survey. MVPA: moderate or vigorous physical activity. 3DPAR: 3-Day Physical Activity Recall. Results are reported as median (95% CI). Wilcoxon rank sum test was used for value and bootstrap procedure was used for confidence intervals.
