Trajectory of Perinatal Depressive Symptoms from the Second Trimester to Three Months Postpartum and Its Association with Sleep Quality.

Purpose: Few studies have explored the association between sleep quality and depressive symptoms in perinatal women from the second trimester to the postpartum period. This study aims to explore this relationship using a longitudinal design. Patients and Methods: Participants were enrolled at 15 gestational weeks. Demographic information was collected. Perinatal depressive symptoms were measured using the Edinburgh Postnatal Depression Scale (EPDS). Sleep quality was measured employing the Pittsburgh Sleep Quality Index (PSQI) at five timepoints from enrollment to three months postpartum. Overall, 1416 women completed the questionnaires at least thrice. A Latent Growth Curve (LGC) model was performed to identify the relationship between the trajectories of perinatal depressive symptoms and sleep quality. Results: Of the participants, 23.7% screened positive at least once on the EPDS. The perinatal depressive symptoms trajectory, fitted by the LGC model, decreased at early pregnancy and increased from 15 gestational weeks to three months postpartum. The intercept of sleep trajectory positively affected the intercept of perinatal depressive symptoms' trajectory; the slope of sleep trajectory positively affected both the slope and the quadratic coefficient of perinatal depressive symptoms' trajectory. Conclusion: The trajectory of perinatal depressive symptoms increased from 15 gestational weeks to three months postpartum following a quadratic trend. Poor sleep quality was associated with depression symptoms beginning at the onset of pregnancy. Moreover, rapidly declining sleep quality could be a significant risk factor for perinatal depression (PND). These findings call for greater attention to perinatal women who report poor and persistently deteriorating sleep quality. Additional sleep-quality evaluations, depression assessments, and referrals to mental health care providers may benefit these women and support PND prevention, screening, and early diagnosis.

The Transactional Relationship between Parental and Adolescent Depressive Symptoms: The Mediating Effect of Nurturant-Involved Parenting.

Sameroff's transactional theory emphasizes a bidirectional process between parents and offspring. The present study explored the reciprocal relationships between parental and adolescent depressive symptoms using a cross-lagged model and examined the mediating effect of nurturant-involved parenting on the relationship between them. Data for the present study were collected from a longitudinal study, and a total of 1644 adolescents and their mothers and fathers participated in the present study. The results revealed a reciprocal relationship between maternal and adolescent depressive symptoms, and the child-driven effect was more robust than the mother-driven effect. Adolescent depressive symptoms significantly predicted paternal depressive symptoms, but not vice versa. In addition, adolescent depressive symptoms indirectly predicted maternal and paternal depressive symptoms by deteriorating nurturant-involved parenting. These findings highlight a child-driven effect on parents' psychopathology, which may shed light on the mechanism underlying depression transmission between parents and adolescents.

A longitudinal investigation of the associations among parenting, deviant peer affiliation, and externalizing behaviors: a monozygotic twin differences design.

Non-shared parenting and deviant peer affiliation are linked to differences in externalizing behaviors between twins. However, few studies have examined these two non-shared environments simultaneously. The present study examined the transactional roles of differential parenting (i.e., warmth and hostility) and deviant peer affiliation on monozygotic (MZ) twin differences in externalizing behaviors using a two-wave longitudinal study of twins and their parents. The sample consisted of 520 pairs of MZ twins (46.5% males, 53.5% females), with a mean age of 13.86 years (SD = 2.10) at the T1 assessment, residing in Beijing, China. The association between non-shared hostility in parenting and adolescent externalizing behaviors was mainly explained by a child-driven effect whereby the twin with a higher level of externalizing behaviors than his or her co-twin was more likely to receive more hostility from the parents. Similarly, the relationship between deviant peer affiliation and adolescent externalizing behaviors supported the selection effect whereby the twin with a higher level of externalizing behaviors than his or her co-twin was more likely to affiliate with deviant peers. The theoretical and practical implications of these findings are discussed.

Romantic relationships and adjustment problems in China: the moderating effect of classroom romantic context.

Theoretical and empirical research has shown that adolescent romantic relationships are associated with a wide range of developmental outcomes, including adverse consequences. The present study used a hierarchical linear model to examine the moderating effect of classroom romantic context on the association between adolescent romantic relationships and adjustment problems. Data were collected from 4776 Chinese adolescents across 106 classes and from 47 schools. The participants' ages ranged from 12 to 18 years. The results indicated that romantic involvement and breakups were associated with adolescents' depressive symptoms and delinquent behaviors. Moreover, the association between breakups and depressive symptoms depended on the classroom romantic context. Specifically, we found that adolescents who experienced breakups showed fewer depressive symptoms in classrooms where romantic relationships were common among classmates than in those classrooms where romantic relationships were rare among classmates. The theoretical implications of these findings are discussed.