Table I.
Descriptive Statistics for Infants and Mothers (SD in parentheses)
| Nondepressed | Depressed mood | p | η | |
|---|---|---|---|---|
| Mothers | ||||
| Depressed mooda | 4.58 (2.25) | 10.93 (2.11) | <.001 | .56 |
| Anxietyb | 27.70 (5.97) | 37.72 (11.38) | <.001 | .25 |
| Age (years) | 27.61 (4.57) | 27.89 (4.26) | ||
| Education (years) | 13.45 (10.09) | 13.89 (11.00) | ||
| SES (Hollingshead) | 2.59 (1.18) | 2.22 (1.06) | ||
| Multiparous (%) | .68 | .58 | ||
| Married (%) | .71 | .84 | ||
| Ethnicity (%) | ||||
| European-American | .71 | .68 | ||
| Hispanic | .16 | .11 | ||
| African-American | .07 | .16 | ||
| Other | .06 | .05 | ||
| Infants | ||||
| Age at test weighing (days) | 12.07 (1.89) | 12.17 (1.82) | ||
| Gestational age | 37.53 (.51) | 37.43 (0.61) | ||
| Male (%) | .50 | .50 | ||
| Birth weight (g) | 3,356 (425.03) | 3,234 (386.90) | ||
| Length (cm) | 51.48 (2.11) | 50.36 (2.95) | ||
| Head circumference (cm) | 34.57 (1.58) | 34.07 (1.54) |
aDepressed mood was measured using the Edinburgh Postnatal Depression Scale (EPDS; Cox et al., 1987).
bAnxiety was measured using the State-Trait Anxiety Inventory (STAI; Spielberger et al., 1970).