Table 1 Demographic and descriptive statistics
From: Associations between cumulative risk, childhood sleep duration, and body mass index across childhood
| Â | M (SD) or Percentage (%) | ||
|---|---|---|---|
| Â | Wave 3 (age 3) | Wave 4 (age 5) | Wave 5 (age 9) |
Demographics | n = 3451 | n = 3419 | n = 3229 |
Child age (years) | 2.97 (0.21) | 5.14 (0.23) | 9.38 (0.37) |
Child sex (female) | 48.3% | 48.0% | 48.0% |
Maternal age (years) | 27.97 (5.97) | 30.09 (5.96) | 34.30 (5.95) |
Maternal race/ethnicity | |||
 White | 20.8% | 20.2% | 20.9% |
 Black | 50.1% | 50.7% | 50.2% |
 Latina | 25.9% | 25.9% | 25.7% |
 Other | 3.2% | 3.1% | 3.2% |
Study Constructs | |||
Child BMI Percentile | 63.73 (30.61) | 66.36 (28.56) | 68.14 (27.93) |
Categorical BMI | |||
 Underweight | 4.4% | 3.1% | 2.2% |
 Average | 60.8% | 62.1% | 56.3% |
 Overweight | 16.9% | 17.5% | 16.8% |
 Obese | 17.9% | 17.3% | 24.8% |
Child Sleep Duration (hours) | – | 9.40 (1.28) | 8.95 (1.12) |
Cumulative Risk | 0.23 (0.19) | 0.21 (0.18) | 0.20 (0.17) |