Table 2: Descriptive data and Mann-Whitney U comparison of anthropometric characteristics and physical activity obtained by accelerometer and IPAQA, for adolescents aged 15 years or over.
|
|
≥15y |
Boys vs. Girls |
|
Girls (n=90) |
Boys (n=57) |
Mann-Whitney U |
|
Mean ± SD |
Median |
IQR (P25-P75) |
IQR |
Mean ± SD |
Median |
IQR (P25-P75) |
IQR |
Z |
P-Value |
|
Age (years) |
17.0±1.2 |
17.0 |
(16.0-18.0) |
2.0 |
16.7±1.2 |
17.0 |
(16.0-18.0) |
2.0 |
-1.032 |
.302 |
|
Height (cm) |
161.8±6.9 |
162.0 |
(158.0-165.0) |
7.0 |
171.8±7.5 |
171.0 |
(168.0-177.0) |
9.0 |
-7.012 |
.000 |
|
Weight Kg) |
60.4±11.4 |
59.3 |
(53.8-64.1) |
10.3 |
65.4±10.2 |
66.0 |
(56.8-72.0) |
15.2 |
-3.313 |
.001 |
|
BMI (kg.m-2) |
23.0±3.5 |
22.5 |
(21.2-24.6) |
3.4 |
22.1±2.7 |
22.0 |
(20.0-23.6) |
3.6 |
-1.618 |
.106 |
|
BMI Centile |
62.7±24.4 |
67.5 |
(50.9-80.4). |
29.55 |
57.2±25.6 |
56.9 |
(41.0-81.4) |
40.4 |
-1.344 |
.179 |
|
Body Fat (%) |
28.4±6.3 |
27.6 |
(24.7-31.2) |
6.6 |
18.3±4.4 |
17.4 |
(15.2-20.0) |
4.8 |
-8.312 |
.000 |
|
Waist Circumference (cm) |
74.1±8.9 |
72.0 |
(69.0-77.0) |
8.0 |
75.1±7.3 |
73.0 |
(70.5-77.5) |
7.0 |
-1.614 |
.107 |
|
Hip Circumference (cm) |
96.8±8.3 |
95.3 |
(91.0-100.0) |
9.0 |
93.4±6.0 |
92.0 |
(89.0-97.0) |
8.0 |
-2.557 |
.011 |
| Accelerometer |
Total Measured Time (min.day-1) |
784.7±76.7 |
788.6 |
(738.0-844.9) |
106.9 |
821.7±85.7 |
842.6 |
(777.4-876.1) |
98.7 |
-2.984 |
.003 |
| Sedentary PA (min.day-1) |
519.6±112.2 |
510.3 |
(453.8-563.0) |
109.2 |
530.1±137.4 |
504.5 |
(450.8-578.0) |
127.2 |
-.119 |
.905 |
| Light PA (min.day-1) |
254.8±68.0 |
245.7 |
(205.0-302.5) |
97.5 |
275.8±78.0 |
263.6 |
(229.9-316.3) |
86.4 |
-1.545 |
.122 |
| Moderate PA (min.day-1) |
23.8±11.8 |
22.1 |
(16.7-27.6) |
10.9 |
37.5±19.3 |
36.6 |
(22.1-47.6) |
25.4 |
-4.632 |
.000 |
| Vigorous PA (min.day-1) |
9.1±9.8 |
6.7 |
(1.9-12.6) |
10.7 |
18.3±14.1 |
15.4 |
(8.3-24.2) |
16.0 |
-4.876 |
.000 |
| MVPA (min.day-1) |
32.9±18.7 |
29.4 |
(19.5-41.1) |
21.6 |
55.8±29.2 |
52.4 |
(30.3-72.6) |
42.4 |
-4.940 |
.000 |
| Total PA (counts.min-1) |
354.9±130.9 |
343.1 |
(268.1-412.6) |
144.5 |
474.8±169.1 |
441.5 |
(352.4-592.9) |
240.5 |
-4.560 |
.000 |
| Total PA (steps.day-1) |
8116.8±3534.3 |
7280.9 |
(5822.1-9584.7) |
3762.6 |
11494.9±6216.3 |
10122.8 |
(6800.2-13930.3) |
7130.1 |
-3.526 |
.000 |
| IPAQA |
Total Reported Time (min.day-1) |
133.2±111.7 |
99.3 |
(47.5-197.9) |
150.4 |
122.8±86.2 |
101.4 |
(63.6-185.4) |
121.8 |
-.014 |
.989 |
| Motor Transportation (min.day-1) |
34.3±36.6 |
25.7 |
(5.7-42.9) |
37.1 |
36.0±41.5 |
22.9 |
(6.4-50.0) |
43.6 |
-.307 |
.759 |
| Walking (min.day-1) |
71.6±60.5 |
60.0 |
(21.4-108.2) |
86.8 |
51.4±46.9 |
35.7 |
(15.4-76.4) |
61.1 |
-1.757 |
.079 |
| Moderate PA (min.day-1) |
40.1±49.3 |
20.0 |
(8.6-60.0) |
51.4 |
34.9±39.2 |
21.4 |
(5.7-44.3) |
38.6 |
-.058 |
.954 |
| Vigorous PA (min.day-1) |
21.5±24.5 |
17.1 |
(4.3-25.7) |
21.4 |
36.4±35.5 |
30.0 |
(10.7-53.6) |
42.9 |
-2.796 |
.005 |
| MVPA (min.day-1) |
61.6±66.7 |
32.9 |
(20.0-88.8) |
68.8 |
71.3±59.9 |
51.4 |
(27.1-104.3) |
77.1 |
-1.641 |
.101 |
| Total PA (MET.min.day-1) |
133.2±111.7 |
99.3 |
(47.5-197.9) |
150.4 |
122.8±86.2 |
101.4 |
(63.6-185.4) |
121.8 |
-.014 |
.989 |
Abbreviations: SD, standard deviation; IQR, Interquartile range; BMI: Body Mass Index, PA: Physical Activity; IPAQA: International Physical Activity Questionnaire for Adolescents; MVPA: Moderate to Vigorous Physical Activity; MET: Metabolic Equivalents.