Mid-Pregnancy Insomnia and its Association with Perinatal Depressive Symptoms: A Prospective Cohort Study.

Objective/Background: Insomnia and depression are disorders that affect many perinatal women and that often are interrelated. The present study aimed to examine concurrent and prospective associations between mid-pregnancy insomnia and depression during mid-pregnancy and 8 weeks postpartum. Furthermore, differences in depression and in the sleep-related characteristics insomnia, chronotype, and sleep efficiency were explored between the two time points (mid-pregnancy versus 8 weeks postpartum), and between primiparous and multiparous participants.Participants/Methods: The study was part of the Norwegian population-based Depression and Anxiety in the Perinatal Period (DAPP) prospective cohort study. Among 539 women that were recruited for participation when receiving a routine ultrasound examination, we analyzed data from hospital birth records and questionnaire responses from pregnancy week 17 and postpartum week 8. We used the Edinburgh Postnatal Depression Scale to measure depression. The Bergen Insomnia Scale, the reduced Horne-Östberg Morningness-Eveningness Questionnaire, and three questions from the Pittsburgh Sleep Quality Index were used to measure the sleep-related characteristics.Results: Mid-pregnancy insomnia was significantly associated with concurrent depression (p < .001), but not with postpartum depression (p = .288), in a linear mixed model with adjustment for several reproductive and psychosocial variables. Sleep efficiency was reduced from mid-pregnancy to postpartum (from 88% to 77%), and primiparous women reported less efficient sleep than multiparous women after childbirth.Conclusions: The results indicate that mid-pregnancy insomnia may be a marker for concurrent depression but not a predictor of postpartum depression. Future research should examine the extent to which treatment of insomnia from mid-pregnancy on reduces both perinatal insomnia and depression.

Mid-pregnancy insomnia is associated with concurrent and postpartum maternal anxiety and obsessive-compulsive symptoms: A prospective cohort study.

BACKGROUND: Although many perinatal women are affected by anxiety, few studies have focused on perinatal anxiety and its potential triggers. The primary aim of this study was to examine concurrent and prospective associations between mid-pregnancy insomnia and perinatal anxiety. Furthermore, we compared psychosocial and reproductive characteristics between participants with and without mid-pregnancy insomnia and explored changes in the prevalence of obsessive-compulsive disorder (OCD) symptoms from mid-pregnancy to 8 weeks postpartum. METHODS: This study was part of the Norwegian Depression and Anxiety in the Perinatal Period (DAPP) prospective, population-based, cohort study. We analyzed hospital birth records and questionnaire responses from pregnancy week 17 and postpartum week 8 (n = 530). The Bergen Insomnia Scale was used to measure insomnia and the Hopkins Symptom Checklist to measure anxiety. OCD symptoms were measured based on questions from the Mini-International Neuropsychiatric Interview. RESULTS: Mid-pregnancy insomnia was significantly associated with both concurrent and postpartum anxiety in a linear mixed model adjusted for several potential confounders. Participants with mid-pregnancy insomnia had significantly higher levels of perinatal anxiety and postpartum OCD symptoms than participants with normal mid-pregnancy sleep. OCD symptoms affected more women after delivery than before (6.4% vs. 3.8% p = 0.034). LIMITATIONS: Immigrants were underrepresented in our sample. CONCLUSION: Our results suggest that mid-pregnancy insomnia is a marker for concurrent anxiety and predictor of postpartum anxiety. Future research should examine whether insomnia treatment starting in mid-pregnancy reduces both perinatal insomnia and anxiety. Health providers should also be aware that postpartum women have an increased risk of developing OCD symptoms.

Insomnia late in pregnancy is associated with perinatal anxiety: A longitudinal cohort study.

BACKGROUND: Postpartum anxiety (PPA) affects a substantial number of women. Despite increasing recognition of PPA, few studies have focused on perinatal anxiety and potential PPA triggers. Here we aimed to estimate the prevalence of perinatal anxiety disorders, and to explore the association between insomnia during late pregnancy and anxiety before and after childbirth. METHODS: This study was part of the large population-based Akershus Birth Cohort. We analyzed data from the hospital's birth records and questionnaire responses from pregnancy weeks 17 and 32 and postpartum week 8 (n = 1563). Perinatal anxiety symptoms were measured using the Hopkins Symptom Check List. Anxiety disorder measurements were based on questions from the Mini-International Neuropsychiatric Interview. Insomnia was measured using the Bergen Insomnia Scale. RESULTS: Among perinatal women, 10% reported symptoms of at least one anxiety disorder. The observed prevalence of obsessive-compulsive disorder was higher after delivery (4.2%) than during pregnancy (2.5%). Multiple regression analysis, with adjustment for several psychosocial and reproductive variables, indicated that insomnia during pregnancy was significantly associated with postpartum anxiety symptoms. However, this association was markedly weakened when depression variables were included in the analysis, indicating that gestational insomnia may also be a marker for a mood disorder. LIMITATIONS: Immigrant and single women were underrepresented in our sample. CONCLUSIONS: Our results suggest that anxiety disorders are prevalent during the perinatal period. Moreover, insomnia during pregnancy is associated with perinatal anxiety. Health professionals should be aware that women with gestational insomnia may have an increased risk of mood and anxiety disorders.