Table 4.
Change in anthropometry, Actical and sleep measures between baseline and 20 weeks
| n |
Baseline |
20 weeks |
Δ Mean |
P value | |
|---|---|---|---|---|---|
| Mean (SD) | Mean (SD) | (95% CI) | |||
|
Anthropometric Measures | |||||
| Weight (kg) |
33 |
55.8 (16.1) |
57.4 (15.8) |
1.61 (−1.02 to 2.21) |
<0.001 |
| Height (m) |
33 |
1.59 (0.13) |
1.62 (0.12) |
0.03 (0.02 to 0.03) |
<0.001 |
| Height z-score |
33 |
0.50 (1.06) |
0.56 (1.02) |
0.06 (−0.03 to 0.15) |
0.158 |
| BMI (kg/m2) |
33 |
21.7 (4.50) |
21.7 (4.49) |
−0.06 (−0.28 to 0.16) |
0.607 |
| BMI z-score |
33 |
0.79 (1.18) |
0.66 (1.19) |
−0.13 (−0.20 to 0.05) |
0.001 |
| Waist Circumference (cm) |
32 |
78.9 (11.8) |
78.3 (15.5) |
−0.64 (−3.55 to 2.28) |
0.659 |
|
Sleep Questionnaires | |||||
| ASHS (Sleep Hygiene) |
32 |
4.70 (0.41) |
4.95 (0.31) |
0.19 (0.06 to 0.33) |
0.005 |
| PSQI (Self report sleep quality) |
33 |
7.47 (2.43) |
4.47 (2.37) |
−2.93 (−3.61 to −2.24) |
<0.001 |
| SDSC (Parent report sleep quality) |
32 |
53.4 (9.0) |
39.2 (9.2) |
−14.1 (−17.1 to −11.1) |
<0.001 |
| PDSS (Daytime sleepiness) |
33 |
16.5 (6.0) |
11.3 (6.0) |
−5.1 (−7.0 to −3.2) |
<0.001 |
|
Actical® measures | |||||
| Sleep Duration (minutes) |
32 |
552 (58) |
557 (63) |
−1 (−19 to 16) |
0.906 |
| Sleep total eea |
32 |
18.5 (54.8) |
5.5 (6.3) |
−11.9 (−25.7 to 1.9) |
0.090 |
| Day total ee |
32 |
568 (224) |
533 (263) |
−38 (−119 to 43) |
0.356 |
| Day sedentary/light ee |
32 |
238 (90) |
214 (80) |
−27 (−50 to −3) |
0.025 |
| Day moderate/vigorous ee | 32 | 330 (152) | 319 (206) | −12 (−80 to 57) | 0.740 |
aEnergy expenditure in kilocalories.
Means shown are unadjusted. Baseline data represent the mean of the two pre-intervention measures for sleep questionnaires and Actical data, and the one pre-intervention measure for anthropometry. Changes in means and p-values were determined from paired t-tests for anthropometric and Actical measures and using regression for sleep measures. For sleep measures, changes are determined as the change in the slope of the regression curves over 20 weeks.