Table 3.
Estimates From Logistic Regression Models Predicting Child Low Sleep (< 10 hours, N = 1,814)
| Variable (reference category) | Model 1 | Model 2 | ||
|---|---|---|---|---|
| eB | SE | eB | SE | |
| Mother’s work hours (1–19 hours per week) | ||||
| 20–34 hours per week | 1.63* | 0.37 | 1.52 | 0.37 |
| 35–40 hours per week | 1.98**a | 0.42 | 1.98** | 0.45 |
| 41+ hours per week | 1.52 | 0.35 | 1.49 | 0.37 |
| Nonstandard schedule (standard schedule) | 1.09 | 0.11 | 1.17 | 0.14 |
| One adult in the household | 1.19 | 0.75 | ||
| One adult × 20–34 hours | 1.42 | 0.92 | ||
| One adult × 35–40 hours | 1.09 | 0.68 | ||
| One adult × 41+ hours | 1.15 | 0.75 | ||
| One adult × nonstandard schedule | 0.84 | 0.19 | ||
| Mother’s race/ethnicity (White) | ||||
| Black | 2.26*** | 0.32 | 2.28*** | 0.32 |
| Hispanic | 1.73*** | 0.28 | 1.75*** | 0.28 |
| Other | 1.51 | 0.47 | 1.51 | 0.47 |
| Mother’s age | 0.99 | 0.01 | 0.99 | 0.01 |
| Mother’s education (college or more education) | ||||
| Less than high school | 1.13 | 0.24 | 1.15 | 0.24 |
| High school/GED | 1.53* | 0.29 | 1.58* | 0.30 |
| Some college/tech school | 1.53* | 0.26 | 1.54* | 0.26 |
| Mother on welfare in past year | 0.78 | 0.13 | 0.79 | 0.13 |
| Mother’s WAIS–R | 1.00 | 0.02 | 1.00 | 0.02 |
| Father’s age at baseline interview | 1.02 | 0.01 | 1.02 | 0.01 |
| Father’s education at baseline interview (college or more education) | ||||
| Less than high school | 1.20 | 0.28 | 1.24 | 0.29 |
| High school/GED | 1.12 | 0.24 | 1.16 | 0.25 |
| Some college/tech school | 1.03 | 0.21 | 1.06 | 0.22 |
| Mother’s relationship status (not married/cohabiting) | ||||
| Married to child’s biological father | 0.82 | 0.11 | ||
| Married to partner (not biological father) | 0.85 | 0.23 | ||
| Cohabits with child’s biological father | 1.00 | 0.16 | ||
| Cohabits with partner (not biological father) | 0.94 | 0.15 | ||
| Number of kids < age18 in household | 1.06 | 0.04 | 1.06 | 0.04 |
| Child is male | 0.90 | 0.09 | 0.91 | 0.09 |
| Child’s age (in months) | 0.98 | 0.02 | 0.98 | 0.02 |
| Child low birth weight | 0.93 | 0.16 | 0.92 | 0.16 |
| Child physical disability | 0.89 | 0.32 | 0.92 | 0.33 |
| Year 3 household income (thousands) | 1.00 | 0.00 | 1.00 | 0.00 |
| Mother’s depressive symptoms (Year 3) | 1.07 | 0.16 | 1.06 | 0.16 |
| Constant | 0.49 | 0.65 | 0.45 | 0.60 |
Note: Data are from the Fragile Families Child and Wellbeing Study. All variables were measured when the child was age 5, unless otherwise noted. WAIS–R= Wechsler Adult Intelligence Scale—Revised.
a
Statistically significant difference vs. 41+ hours (p < .05).
*
p < .05.
**
p < .01.
***
p < .001.