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. Author manuscript; available in PMC: 2020 Oct 1.
Published in final edited form as: Biol Psychol. 2018 Nov 2;147:107614. doi: 10.1016/j.biopsycho.2018.10.016

Table 1:

Sample demographics

Maternal age; range, M (SD) 18-42; 27.8 (6.5)
Maternal country of birth; N (%)
 Mexico 278 (86%)
 U.S. 44 (14%)
Marital status; N (%)
 Married/living together 249 (77%)
 Single, never married 49 (15%)
 Separated/divorced 24 (7%)
Maternal education; N (%)
 Less than high school 190 (59%)
 High school diploma/GED 86 (27%)
 Some college/technical school/college degree 45 (14%)
Annual family income; N (%)
 < $5,000 44 (14%)
 $5,000-$10,000 61 (19%)
 $10,000-$15,000 87 (28%)
 $15,000-$20,000 37 (12%)
 $20,000-$25,000 40 (13%)
 $25,000 and above 45 (14%)
 Missing/did not answer (n=8)
Gestational age at birth (weeks); range, M (SD) 26-42; 39.3 (1.4)
 Premature birth (<37 weeks gestation), N (%) 6 (1.8%)
Infant birthweight (g); range, M (SD) 1190-4935; 3391 (461)
 Low birthweight (<2500g), N (%) 7 (2.2%)
Prenatal depressive symptoms; range, M (SD) 0 -24; 5.91 (5.4)
Negative life events; range, M (SD) 0 -11; 2.72 (2.2)
Economic hardship (z-score); range, M (SD) −6.48 -10.06; 0 (3.0)
Dyadic dysregulation; range, M (SD) 1 -4.5; 1.88 (.84)
Infant cortisol AUCg; range, M (SD) .54 -2.20; 1.18 (.35)
Maternal cortisol AUCg; range, M (SD) .06 -1.85; .783 (.28)
Infant cortisol reactivity (difference score), range, M (SD) −1.13 -1.19; −.026 (.27)
Maternal cortisol reactivity (difference score), range, M (SD) −.16 -.151; −.02 (.04)
Postpartum depressive symptoms; range, M (SD) 0 – 22; 3.95 (4.4)