Pregnancy-specific anxiety and gestational length: The mediating role of diurnal cortisol indices

BACKGROUND

Preterm birth or shorter gestation is a common adverse pregnancy outcome. Pregnancy-specific anxiety is robustly associated with risk for shorter gestation. Hypothalamic-pituitary-adrenal (HPA) dysregulation, indicated by diurnal cortisol index variability [slope, area-under-the-curve (AUC) or cortisol awakening response (CAR)], could mediate associations between pregnancy-specific anxiety and shorter gestation. The purpose of this study was to explore whether diurnal cortisol index variability mediates associations between pregnancy-specific anxiety and gestational length.

METHODS

A sample of 149 women from the Healthy Babies Before Birth study reported pregnancy-specific anxiety in early pregnancy. Saliva samples were taken at three times during pregnancy, for two days each, at wake, 30 min post wake, noon, and evening. Diurnal cortisol indices were calculated using standard approaches. Pregnancy cortisol index variability was calculated across pregnancy timepoints. Gestational length was derived from medical charts. Covariates were sociodemographics, parity and obstetric risk. Mediation models were tested using SPSS PROCESS.

RESULTS

There was a significant indirect effect of pregnancy-specific anxiety on gestational length via CAR variability, b(SE)= -0.102(0.057), .95CI [- 0.227,- 0.008]. Higher pregnancy-specific anxiety was associated with lower CAR variability, b(SE)= -0.019(0.008), p = .022, and lower CAR variability was associated with shorter gestation, b(SE)= 5.29(2.64), p = .047. Neither AUC or slope variability mediated associations between pregnancy-specific anxiety and gestational length.

CONCLUSION

Lower CAR variability during pregnancy mediated the association between higher pregnancy-specific anxiety and shorter gestational length. Pregnancy-specific anxiety could dysregulate HPA axis activity, as indicated by lower CAR variability, demonstrating the importance of the HPA axis system in regulating pregnancy outcomes.

Sex-specific associations between maternal pregnancy-specific anxiety and newborn amygdalar volumes - preliminary findings from the FinnBrain Birth Cohort Study

Previous literature links maternal pregnancy-specific anxiety (PSA) with later difficulties in child emotional and social cognition as well as memory, functions closely related to the amygdala and the hippocampus. Some evidence also suggests that PSA affects child amygdalar volumes in a sex-dependent way. However, no studies investigating the associations between PSA and newborn amygdalar and hippocampal volumes have been reported. We investigated the associations between PSA and newborn amygdalar and hippocampal volumes and whether associations are sex-specific in 122 healthy newborns (68 males/54 females) scanned at 2-5 weeks postpartum. PSA was measured at gestational week 24 with the Pregnancy-Related Anxiety Questionnaire Revised 2 (PRAQ-R2). The associations were analyzed with linear regression controlling for confounding variables. PSA was associated positively with left amygdalar volume in girls, but no significant main effect was found in the whole group or in boys. No significant main or sex-specific effect was found for hippocampal volumes. Although this was an exploratory study, the findings suggest a sexually dimorphic association of mid-pregnancy PSA with newborn amygdalar volumes.

Parity and Psychosocial Risk Factors Increase the Risk of Depression During Pregnancy Among Recent Immigrant Women in Canada

Prior investigations have examined risk factors associated to postpartum depression in immigrant women, but depression during pregnancy has received less attention. This study describes the prevalence and early determinants of antenatal depression among recent (≤ 5 years) and long-term immigrants (> 5 years), compared to Canadian-born women. 503 women completed standardized self-report questionnaires measuring sociodemographics and psychosocial factors. Multivariate logistic regressions identified first trimester risk factors for depression in each immigrant group. The prevalence of depressive symptoms was highest for recent immigrant (25.3-30.8%) compared to long-term immigrant (16.9-19.2%) and Canadian-born women (11.7-13.8%). Among recent immigrants, multiparity, higher stress and pregnancy-specific anxiety in early pregnancy increased the risk of antenatal depression. Among long-term immigrants, stress in the first trimester was significantly associated with antenatal depressive symptoms. Knowledge of modifiable risk factors (pregnancy-specific anxiety and stress) may help improve antenatal screening and inform the development of tailored interventions to meet the mental health needs of immigrant women during the perinatal period.

The association between pregnancy-specific anxiety and preterm birth: a cohort study

Background

Antenatal anxiety may have long-term negative effects on pregnancy outcome. Antenatal anxiety can also be detrimental to maternal health during pregnancy. Therefore, this study aimed to determine the association between pregnancy-specific anxiety and preterm birth in pregnant women.

Methods

This prospective cohort study was conducted on 208 pregnant women who were referred to the prenatal clinic of Al-Zahra hospital in Rasht. Sampling was conducted through convenient (simple) method. Data gathering tools were a demographic characteristics questionnaire and pregnancy-specific anxiety scale. The data were analyzed using SPSS version 19. General Linear Model (GLM)-Repeated Measures test were used to study variations in anxiety along pregnancy period and tested levels of significance among inter-trimester anxiety scores.

Results

Results of the study showed that change in pregnancy-specific anxiety is significantly associated with preterm birth among participants in this study. Second trimester pregnancy-specific anxiety was not associated with preterm birth, but third trimester pregnancy-specific anxiety was associated with preterm birth.

Conclusion

According to the results of this study, third trimester pregnancy-specific anxiety was associated with preterm birth. Therefore, the health care providers should pay special attention to pregnancy-specific anxiety.