Table 3.
Characteristics of the analytic sample at baseline
| Participant characteristics | Total (n=77) |
Low-Risk (n=45) |
High-Risk (n=32) |
|---|---|---|---|
| Physical: Continuous (mean (SD)) | |||
|
| |||
| Age (y) | 7.4 (0.6) | 7.4 (0.6) | 7.4 (0.6) |
| BMI z-score | −0.10 (0.7) | −0.29 (0.7) ** | 0.16 (0.7) ** |
| BMR (kcal) a | 1046.5 (76.6) | 1041.4 (78.1) | 1053.6 (75.2) |
|
| |||
| Demographic: Categorical (%(n)) | |||
|
| |||
| Sex | |||
| Male | 51 (39) | 55.6 (25) | 43.8 (14) |
| Female | 49 (38) | 44.4 (20) | 56.2 (18) |
| Race | |||
| White | 97 (75) | 95.6 (43) | 100.0 (32) |
| Non-White | 3 (2) | 4.4 (2) | 0 (0) |
| Household Income ($) b | |||
| < 36,000 | 5.4 (4) | 2.3 (1) | 10.0 (3) |
| 36,000–50,999 | 9.5 (7) | 6.8 (3) | 13.3 (4) |
| 51,000–75,999 | 22.9 (17) | 13.6 (6) | 36.7 (11) |
| 76,000–100,000 | 22.9 (17) | 25.0 (11) | 20.0 (6) |
| > 100,000 | 39.3 (29) | 52.3 (23) | 20.0 (6) |
| Parent Education | |||
| High School | 11.7 (9) | 6.7 (3) | 18.8 (6) |
| 2-year, Vocational, etc. | 10.4 (8) | 4.4 (2) | 18.8 (6) |
| Bachelor’s Degree | 42.9 (33) | 42.2 (19) | 43.7 (14) |
| Master’s Degree | 22.1 (17) | 28.9 (13) | 12.5 (4) |
| Doctoral Degree | 12.9 (10) | 17.8 (8) | 6.2 (2) |
|
| |||
| Sleep: Continuous (mean (SD)) | |||
|
| |||
| Sleep efficiency (%) | 83.5 (4.1) | 83.2 (4.1) | 83.9 (4.2) |
| Sleep fragmentation index | 27.3 (5.1) | 28.2 (5.4) | 26.2 (4.6) |
| Fragmentation index | 13.4 (3.5) | 13.7 (3.5) | 12.9 (3.5) |
| Wake after sleep onset (min) | 91.1 (25.2) | 94.0 (26.1) | 87.0 (23.7) |
| Total sleep time (min) | 578.7 (33.7) | 584.6 (33.0) | 570.5 (33.5) |
|
| |||
| Eating Behaviors (mean (SD) | |||
|
| |||
| Meal intake (kcal) | 584.1 (255.9) | 562.9 (238.2) | 614.0 (280.0) |
| EAH intake (kcal) | 271.1 (130.3) | 254.2 (129.3) | 294.9 (130.1) |
**
Significantly different via t-test, p<0.01;
a
Determined from Schofield equation;
b
Missing data for 3 families who did not report income. Abbreviations: EAH – Eating in the Absence of Hunger