A prospective study of the impact of psychosocial and lifestyle variables on pregnancy complications

Psychometric performance assessment of the Arabic version of the pregnancy experience scale-brief version (PES-brief) in an Arabic-speaking population

OBJECTIVE

Although tools exist to assess psychological distress during pregnancy, a scarcity of instruments are designed to measure maternal perceptions of the more positive, uplifting features of pregnancy in addition to the more negative, hassling aspects. To address this shortcoming, DiPietro et al. developed the Pregnancy Experience Scale-Brief (PES-Brief). We aimed to assess the reliability and psychometric performance of an Arabic translation of the PES-Brief among Lebanese pregnant women.

METHODS

The PES-Brief, the Patient Health Questionnaire, the Lebanese Anxiety Scale, and the Multidimensional Scale of Perceived Social Support were administered to 433 participants. PES-Brief scores were computed as frequency and intensity, with Hassles to Uplifts frequency and intensity ratios.

RESULTS

The PES-Brief was internally consistent, with McDonald's ω = 0.87 for Uplifts and 0.81 for Hassles. Higher PES-Uplifts scores were significantly associated with lower depression and anxiety scores, and higher perceived social support; whereas higher PES-Hassles scores showed inverse correlations. The Hassles to Uplifts frequency and intensity ratios were 0.864 and 0.836, respectively, indicating that pregnant women were more uplifted than hassled. The CFA results confirmed the two-factor structure of the scale.

CONCLUSION

Our findings suggest that the Arabic PES-Brief is a psychometrically valid and reliable scale that may be employed as a legitimate indicator of pregnancy-specific uplifts and hassles among Arabic-speaking populations. Our study prompts clinicians and researchers to benefit from this tool for capturing the integral psychological/emotional experience of women during pregnancy, which may facilitate pregnant women's support when needed.

Effects of Tobacco Consumption and Anxiety or Depression during Pregnancy on Maternal and Neonatal Health

This study analyzed the possible interaction effects between tobacco consumption and anxiety or depression during pregnancy on maternal and neonatal health. We recruited a sample of 807 pregnant Spanish women from public healthcare services. Women completed a questionnaire on sociodemographic variables, health status and tobacco consumption (continuous, quitting or no consumption) in the first and third trimester of pregnancy and at 2 months postpartum, and self-reported measures of anxiety and depression in the first trimester. Abstinence of tobacco consumption was verified through biochemical measurements. Interaction effects between tobacco consumption and anxiety were found for delivery (p < 0.001), neonatal health complications (p = 0.026) and gestational age at birth (p = 0.029). Interaction effects between tobacco consumption and depression were found for pregnancy (p = 0.032), delivery complications (p < 0.001) and weeks of gestation at birth (p = 0.031). This study suggests that there are different kinds of interaction effects between tobacco consumption and anxiety or depression. Smokers with high anxiety presented more delivery complications compared to quitters and non-smokers with high anxiety. There is a cumulative effect of anxiety on the effects of tobacco consumption on maternal health. The results highlighted the beneficial impact of quitting smoking during pregnancy to reduce the risk of suffering anxiety, depression and health complications.

Maternal Prenatal Stress and Other Developmental Risk Factors for Adolescent Depression: Spotlight on Sex Differences

Maternal stress during pregnancy has been linked to premorbid abnormalities associated with depression (e.g., difficult temperament, cognitive deficits) in offspring. However, few studies have looked across developmental periods to examine maternal stress during pregnancy and offspring depression during adolescence and whether these associations differ by sex. The current study used data from 1711 mother-offspring dyads (offspring sex: 49.8% male) in a longitudinal birth cohort study. Maternal narratives collected during pregnancy were qualitatively coded for stress-related themes by independent raters. Latent class analysis (LCA) identified distinct subgroups of offspring based on exposure to maternal prenatal stress and other developmental factors from the prenatal, childhood, and adolescent periods that have been associated with depression and/or maternal prenatal stress. LCA identified subgroups that were compared to determine whether and to what extent they differed on adolescent depressive symptoms. LCA revealed a subgroup of "high-risk" individuals, characterized by maternal factors during pregnancy (higher ambivalence/negativity and lower positivity towards the pregnancy, higher levels of hassles, lower maternal education and higher maternal age at birth, higher pre-pregnancy BMI) and offspring developmental factors (decreased cognitive functioning during childhood and adolescence, lower perceived parental support during adolescence, and higher levels of maternal depression during adolescence). High-risk females exhibited elevated conduct symptoms and higher birth order, while high-risk males exhibited decreased internalizing symptoms and lower birth order. Both high-risk males and females reported elevated depressive symptoms during adolescence relative to their "low-risk" counterparts.

Maternal infection and stress during pregnancy and depressive symptoms in adolescent offspring

Maternal infection during pregnancy has been linked to increased risk of offspring depression. Additionally, maternal stress during pregnancy has been consistently linked with adverse offspring outcomes associated with depression. Relatedly, stress has been associated with increased risk of infection; however no study has investigated stress-infection interactions during pregnancy and risk for offspring depression. Participants were drawn from the Child Health and Development Studies (CHDS), a prospective, longitudinal study that enrolled pregnant women from 1959 to 1966. Maternal health and birth outcome information were collected, as well as open-ended interviews about worrisome events during pregnancy. The present study included participants from a subsample of women whose offspring (n = 1711) completed self-reports of depressive symptoms during adolescence. Results indicated that maternal infection during only the second trimester was associated with higher scores on adolescent offspring depressive symptoms, while controlling for maternal education at birth, adolescent age, and maternal depressive symptoms at adolescence. Maternal experiences of daily stress during pregnancy moderated this association, such that mothers diagnosed with second trimester infection and who experienced daily stress had offspring with significantly higher depression scores than mothers of adolescents diagnosed with an infection alone. Findings have potential implications for prevention and intervention strategies.

Effects of a novel positive psychological intervention on prenatal stress and well-being: A pilot randomised controlled trial

PROBLEM

Low prenatal well-being has adverse outcomes for mother and infant but few interventions currently exist to promote and maintain prenatal well-being.

BACKGROUND

Mindfulness and gratitude based interventions consistently demonstrate benefits in diverse populations. Interventions integrating these constructs have potential to improve psychological and physiological health during pregnancy.

AIM

The aim of this pilot study is to examine the effect of a novel gratitude and mindfulness based intervention on prenatal stress, cortisol levels, and well-being.

METHODS

A pilot randomised controlled trial was conducted with 46 pregnant women. Participants used an online mindfulness and gratitude intervention 4 times a week for 3 weeks. Measures of prenatal stress, salivary cortisol, gratitude, mindfulness, and satisfaction with life were completed at baseline, 1.5 weeks later, and 3 weeks later.

FINDINGS

Intervention participants demonstrated significant reductions in prenatal stress in comparison to the control condition (p=.04). Within subjects reductions in waking (p=.004) and evening cortisol (p>.001) measures were observed for intervention participants. Significant effects were not observed for other well-being outcomes.

DISCUSSION

Reducing self-report and physiological stress in pregnancy can improve maternal and infant outcomes. The findings of this pilot study indicate potential direct effects of the intervention on self-reported stress in comparison to a treatment-as-usual control. Effects on a biomarker of stress, cortisol, were also observed within the intervention group.

CONCLUSION

A brief mindfulness and gratitude based intervention has the potential to reduce stress in pregnancy. Future research is needed to further explore mechanisms and potential benefits of such interventions.

Determinants of maternal antenatal state-anxiety in mid-pregnancy: Role of maternal feelings about the pregnancy

BACKGROUND

The current state of research into antenatal anxiety is lacking in a comprehensive understanding of determinants. This study aims to expand knowledge in this area, with the main objective being to determine potential determinants of maternal antenatal state-anxiety.

METHODS

Data used for this cross-sectional study were obtained from the Prenatal Health Project: a population cohort study of 2357 women in London, Ontario. 1992 women in their second trimester met inclusion criteria for this study. The primary hypothesis was that "feelings about the pregnancy" would be a determinant of antenatal state-anxiety after controlling for other potential covariates. The abbreviated version of the Spielberger State and Trait Anxiety Inventory (STAI) was used to measure state-anxiety. Univariate analyses and multiple linear regression were performed to identify variables predictive of state-anxiety.

RESULTS

Stress, feeling unsure/unhappy about the pregnancy and having low self-esteem, low mastery and low social support from one's partner and family were statistically significant determinants of state-anxiety during the second trimester. In addition, anxiety was found to be inversely related to gestational age.

LIMITATIONS

The two main limitations of the study were the use of a self-report screening tool (STAI) as the measure of anxious symptoms rather than a clinical diagnosis, and possible recall bias of feelings about the pregnancy.

CONCLUSIONS

We concluded that how a woman feels about her pregnancy was a determinant of state-anxiety. This study contributes knowledge aiming to help women improve their mental health during pregnancy by identifying important determinants of state-anxiety.

Maternal anxiety from pregnancy to 2 years postpartum: transactional patterns of maternal early adversity and child temperament

The aims of this study were to examine the anxiety trajectories of women from pregnancy to 2 years postpartum and to assess the influence of their early life experiences and the temperament of the child on these trajectories. We evaluated state anxiety (State-Trait Anxiety Inventory) at pregnancy and 3, 6, 12, 18, and 24 months postpartum and determined its course as a function of self-reported early adverse experiences (Childhood Trauma Questionnaire) and the temperament of the child at 18 months (Early Child Behavior Questionnaire). Based on growth curve modeling, we found that anxiety followed a general U-shape pattern from gestation to 2 years postpartum, which was modified by early life experience of women. Greater early adversity was associated with higher gestational anxiety, followed by a marked decrease once the baby was born, and subsequent increase during the later postpartum period. The temperament of the child also modulated anxiety trajectories. Thus, mothers of children high in negative affectivity and who also experienced greater early adversity had elevated and flat anxiety trajectories, while child extraversion was associated with increasing anxiety courses approaching 2 years postpartum. These results show that maternal anxiety dynamically changes through the postpartum period with a course that is affected by previous and current experiences.

A review of sleep-promoting medications used in pregnancy

Approximately 4% of adults who have symptoms of insomnia resort to various hypnotic or sedating medications for acute symptom relief. Although typically a common practice for nonpregnant adults, this is not the case for the thousands of pregnant women who also report substantial sleep issues. Unfortunately, a paucity of randomized controlled trials in this population, scant empiric evidence regarding the appropriateness of prescribing options, and the concern of subsequent teratogenicity restricts the ability of clinicians to make informed decisions. We synthesized the current research regarding hypnotics and sedating medications used (both on- and off-label) during pregnancy and their association with adverse outcomes. Medications that we investigated included benzodiazepines, hypnotic benzodiazepine receptor agonists, antidepressants, and antihistamines. Overall, the examined studies showed no correlation of increased risk of congenital malformations. However, benzodiazepines and hypnotic benzodiazepine receptor agonists may increase rates of preterm birth, low birthweight, and/or small-for-gestational-age infants. The small number of studies and the small number of subjects prohibit any definitive interpretation regarding the consequences of the use of hypnotic or sedating medications in pregnancy. Additional case reports, randomized clinical trials, and epidemiologic studies are needed urgently.

Fetal sex modifies effects of prenatal stress exposure and adverse birth outcomes

Prenatal maternal stress is associated with pregnancy complications, poor fetal development and poor birth outcomes. Fetal sex has also been shown to affect the course of pregnancy and its outcomes. The aim of this study was to evaluate whether fetal sex modifies the association between continuous exposure to life-threatening rocket attack alarms and adverse pregnancy outcomes. A retrospective cohort study was conducted in which the exposed group was comprised of 1846 women exposed to rocket-attack alarms before and during pregnancy. The unexposed group, with similar sociodemographic characteristics, delivered during the same period of time at the same medical center, but resided out of rocket-attack range. Multivariable models for each gender separately, controlling for possible confounders, evaluated the risk associated with exposure for preterm births (PTB), low birthweight (LBW), small for gestational age and small head circumference (HC). In both univariable and multivariable analyses exposure status was a significant risk factor in female fetuses only: PTB (adj. OR = 1.43; 1.04-1.96), LBW (adj. OR = 1.41; 1.02-1.95) and HC < 31 cm (adj. OR = 1.78; 1.11-2.88). In addition, regarding all adverse outcomes, the male-to-female ratio was higher in the exposed group than in the unexposed group. The findings support the hypothesis that male and female fetuses respond differentially to chronic maternal stress.

The effect of depression symptoms and social support on black-white differences in health-related quality of life in early pregnancy: the health status in pregnancy (HIP) study

Background

Lower physical and social functioning in pregnancy has been linked to an increased risk of preterm delivery and low birth weight infants, butt few studies have examined racial differences in pregnant women’s perception of their functioning. Even fewer studies have elucidated the demographic and clinical factors contributing to racial differences in functioning. Our objective was to determine whether there are racial differences in health-related quality of life (HRQoL) in early pregnancy; and if so, to identify the contributions of socio-demographic characteristics, depression symptoms, social support and clinical factors to these differences.

Methods

Cross-sectional study of 175 women in early pregnancy attending prenatal clinics in urban setting. In multivariate analysis, we assessed the independent relation of black race (compared to white) to HRQoL scores from the eight domains of the Medical Outcomes (SF-36) Survey: Physical Functioning, Role-Physical, Bodily Pain, Vitality, General Health, Social Functioning, Role-Emotional, and Mental Health. We compared socio-demographic and clinical factors and depression symptoms between black and white women and assessed the relative importance of these factors in explaining racial differences in physical and social functioning.

Results

Black women comprised 59% of the sample; white women comprised 41%. Before adjustment, black women had scores that were 14 points lower in Physical Function and Bodily Pain, 8 points lower in General Health, 4 points lower in Vitality and 7 points lower in Social Functioning. After adjustment for depression symptoms, social support and clinical factors, black women still had HRQoL scores that were 4 to 10 points lower than white women, but the differences were no longer statistically significant. Level of social support and payment source accounted for most of the variation in Physical Functioning, Bodily Pain and General Health. Social support accounted for most of the differences in Vitality and Social Functioning.

Conclusions

Payment source and social support accounted for much of the racial differences in physical and social function scores. Efforts to reduce racial differences might focus on improving social support networks and Socio-economic barriers.

A review and psychometric evaluation of pregnancy-specific stress measures

Considerable evidence has accumulated on the association between pregnancy-specific stress and adverse birth outcomes with an increasing number of measures of pregnancy-specific stress being developed internationally. However, the introduction of these measures has not always been theoretically or psychometrically grounded, resulting in questions about the quality and direction of such research. This review summarizes evidence on the reliability and validity of pregnancy-specific stress measures identified between 1980 and October 2010. Fifteen pregnancy-specific stress measures were identified. Cronbach's alpha coefficient ranged from 0.51-0.96 and predictive validity data on preterm birth were reported for five measures. Convergent validity data suggest that pregnancy-specific stress is related to, but distinct from, global stress. Findings from this review consolidate current knowledge on pregnancy-specific stress as a consistent predictor of premature birth. This review also advances awareness of the range of measures of pregnancy-specific stress and documents their strengths and limitations based on published reliability and validity data. Careful consideration needs to be given as to which measures to use in future research to maximize the development of stress theory in pregnancy and appropriate interventions for women who experience stress in pregnancy. An international, strategic collaboration is recommended to advance knowledge in this area of study.

Coping with preoperative anxiety in cesarean section: physiological, cognitive, and emotional effects of listening to favorite music

BACKGROUND

Listening to music has a stress-reducing effect in surgical procedures. The effects of listening to music immediately before a cesarean section have not been studied. The objective of this study was to assess the effects of listening to selected music while waiting for a cesarean section on emotional reactions, on cognitive appraisal of the threat of surgery, and on stress-related physiological reactions.

METHODS

A total of 60 healthy women waiting alone to undergo an elective cesarean section for medical reasons only were randomly assigned either to an experimental or a control group. An hour before surgery they reported mood, and threat perception. Vital signs were assessed by a nurse. The experimental group listened to preselected favorite music for 40 minutes, and the control group waited for the operation without music. At the end of this period, all participants responded to a questionnaire assessing mood and threat perception, and the nurse measured vital signs.

RESULTS

Women who listened to music before a cesarean section had a significant increase in positive emotions and a significant decline in negative emotions and perceived threat of the situation when compared with women in the control group, who exhibited a decline in positive emotions, an increase in the perceived threat of the situation, and had no change in negative emotions. Women who listened to music also exhibited a significant reduction in systolic blood pressure compared with a significant increase in diastolic blood pressure and respiratory rate in the control group.

CONCLUSION

Listening to favorite music immediately before a cesarean section may be a cost-effective, emotion-focused coping strategy. (BIRTH 39:2 June 2012).

Stillbirth Collaborative Research Network: design, methods and recruitment experience

The Stillbirth Collaborative Research Network (SCRN) has conducted a multisite, population-based, case-control study, with prospective enrollment of stillbirths and livebirths at the time of delivery. This paper describes the general design, methods and recruitment experience. The SCRN attempted to enroll all stillbirths and a representative sample of livebirths occurring to residents of pre-defined geographical catchment areas delivering at 59 hospitals associated with five clinical sites. Livebirths <32 weeks gestation and women of African descent were oversampled. The recruitment hospitals were chosen to ensure access to at least 90% of all stillbirths and livebirths to residents of the catchment areas. Participants underwent a standardised protocol including maternal interview, medical record abstraction, placental pathology, biospecimen testing and, in stillbirths, post-mortem examination. Recruitment began in March 2006 and was completed in September 2008 with 663 women with a stillbirth and 1932 women with a livebirth enrolled, representing 69% and 63%, respectively, of the women identified. Additional surveillance for stillbirths continued until June 2009 and a follow-up of the case-control study participants was completed in December 2009. Among consenting women, there were high consent rates for the various study components. For the women with stillbirths, 95% agreed to a maternal interview, chart abstraction and a placental pathological examination; 91% of the women with a livebirth agreed to all of these components. Additionally, 84% of the women with stillbirths agreed to a fetal post-mortem examination. This comprehensive study is poised to systematically study a wide range of potential causes of, and risk factors for, stillbirths and to better understand the scope and incidence of the problem.

Pregnant women of Mexican descent: constructions of motherhood

Past research related to pregnancy outcomes has tended to have a bio-medical focus. More recent research has begun to explore possible social and cultural influences on birth outcomes. Qualitative interviews were conducted with 28 pregnant women of Mexican descent in the Texas/Mexico border region to begin to describe the social and cultural contexts of pregnancy of women of Mexican ancestry. Participants' constructions surrounding pregnancy focused on the mother role. Goodness of fit between constructions of the mother role and women's lives and self-concepts resulted in positive or negative feelings about motherhood.

Alleviating perinatal depressive symptoms and stress: a nurse-community health worker randomized trial

To determine whether a Nurse-Community Health Worker (CHW) home visiting team, in the context of a Medicaid enhanced prenatal/postnatal services (EPS), would demonstrate greater reduction of depressive symptoms and stress and improvement of psychosocial resources (mastery, self-esteem, social support) when compared with usual Community Care (CC) that includes Medicaid EPS delivered by professionals. Greatest program benefits were expected for women who reported low psychosocial resources, high stress, or both at the time of enrollment. Medicaid eligible pregnant women (N = 613) were randomly assigned to either usual CC or the Nurse-CHW team. Mixed effects regression was used to analyze up to five prenatal and postnatal psychosocial assessments. Compared to usual CC, assignment to the Nurse-CHW team resulted in significantly fewer depressive symptoms, and as hypothesized, reductions in depressive symptoms were most pronounced for women with low psychosocial resources, high stress, or both high stress and low resources. Outcomes for mastery and stress approached statistical significance, with the women in the Nurse-CHW group reporting less stress and greater mastery. Women in the Nurse-CHW group with low psychosocial resources reported significantly less perceived stress than women in usual CC. No differences between the groups were found for self-esteem and social support. A Nurse-CHW team approach to EPS demonstrated advantage for alleviating depressive symptoms in Medicaid eligible women compared to CC, especially for women at higher risk.

Social support, life stress, and anxiety as predictors of pregnancy complications in low-income women

Prospective repeated measures were used to examine attachment, social support, life stress, anxiety, and psychological wellbeing among low-income women in early and late pregnancy and the relationships of these variables to prenatal, intrapartum, and neonatal complications. One hundred and eleven medically healthy, low-income, Medicaid-eligible women ages 18-35 years, between 14 and 22 weeks of pregnancy were recruited from prenatal clinics. Self-report questionnaires and hospital records were used to collect data. Discriminant analysis was performed. The most important discriminating factors for prenatal complications were state anxiety and total functional social support. The factors for neonatal complications were negative life events and the interaction of emotional support with negative life events.

Anxiety in pregnant and postpartum women. An exploratory study of the role of maternal orientations

BACKGROUND

Little is known about why some women are anxious during pregnancy but not in the postpartum period, or vice versa. We aimed to determine the influence of maternal antenatal orientations (Raphael-Leff, J. (2005) Psychological Processes of Childbearing, London, The Anna Freud Centre.) on the prevalence of general anxiety symptoms and specific anxiety in pregnant and postpartum women.

METHODS

Four hundred and three pregnant women participated in a longitudinal study and completed general (HADS-A) and specific (PRAQ, MSAS) anxiety questionnaires and measures of maternal antenatal orientations, personality traits, cognitive and behavioural coping styles and attachment.

RESULTS

Higher scores on the neuroticism and regulator orientation scale consistently predicted higher scores on the general and pregnancy related anxiety measures. Also, an interaction effect was found between the regulator scale and the neuroticism scale on the general anxiety symptoms and pregnancy related anxiety. Finally, the facilitator orientation scale and the neuroticism scale, predicted maternal separation anxiety in the postpartum period.

CONCLUSION

Women differ in the risk factors, the nature and timing of heightened anxiety during the transition to motherhood. The anxieties of women tending to the regulator orientation are pregnancy related, whereas women tending to the facilitator orientation fear the separation from their child in the postpartum period.

The pregnancy experience scale-brief version

The role of maternal stress during pregnancy remains a focus of academic and clinical inquiry, yet there are few instruments available that measure pregnancy-specific contributors to maternal psychological state. This report examines the psychometric properties of an abbreviated version of the Pregnancy Experience Scale (PES) designed to evaluate maternal appraisal of positive and negative stressors during pregnancy. The PES-Brief consists of the top 10 items endorsed as pregnancy hassles and 10 pregnancy uplifts from the original scale. The PES-Brief was administered to 112 women with low risk, singleton pregnancies five times between 24 and 38 weeks gestation. Scoring includes frequency and intensity measures for hassles and uplifts, as well as composite measures for the relation between the two. Internal reliability, test-retest reliability and convergent validity were comparable with the original version. The PES-Brief provides an economical source of information on stress appraisal and emotional valence towards pregnancy.

Continuity in self-report measures of maternal anxiety, stress, and depressive symptoms from pregnancy through two years postpartum

This study examined stability and change in maternal anxiety, stress and depression both during the second half of pregnancy and from pregnancy to six weeks and two years postpartum. Self-report measures included those designed to measure mood and state as well as more persistent attributes. Longitudinal data were collected from 137 women during pregnancy, 120 at six weeks, and 97 at two years. There was significant individual stability in scores on specific measures during pregnancy (range in Pearson rs=0.30-0.86) and from pregnancy through two years postpartum (rs=0.30-0.74). Comparable levels of convergence among measures of different constructs both within pregnancy and over time were also demonstrated, suggesting lack of precision in measurement instruments designed for specific constructs. Despite intra-individual stability, changes in mean levels were also observed over time with somewhat different patters for each variable. However, maternal parity was an important contributor to both level and trajectory. A summary composite score showed an elevated level of psychological distress during pregnancy in multiparous women, followed by a decline through two years postpartum; primiparous women displayed a gradual increase in distress [main effect F (1,87)=3.97, p < 0.05; time interaction F (2,174)= 7.15, p < 0.001] to multiparous levels by two years. Results are discussed in terms of a "motherhood" effect on psychological distress.

Prediction of postpartum depression by sociodemographic, obstetric and psychological factors: a prospective study

AIM

Many studies have documented serious effects of postpartum depression. This prospective study sought to determine predictive factors for postpartum depression.

METHODS

Pregnant women (n = 239) were enrolled before 24 weeks in their pregnancy. At 6 weeks postpartum, 30 women who had postpartum depression and 30 non-depressed mothers were selected. The Edinburgh Postnatal Depression Scale (EPDS), the Beck Depression Inventory (BDI), the Beck Anxiety Inventory (BAI), the Rosenberg Self-Esteem Scale (RSES) Marital Satisfaction Scale (MSS), and the Childcare Stress Inventory (CSI) were administered to all 60 mothers at 24 weeks pregnancy, 1 week postpartum, and 6 weeks postpartum.

RESULTS

The differences in most of the diverse sociodemographic and obstetric factors assessed were not statistically significant. There were significant differences in MSS scores at 24 weeks pregnancy (P = 0.003), and EPDS (P < 0.001; P = 0.002), BDI (P = 0.001; P = 0.031), and BAI (P < 0.001; P < 0.001) at both 24 weeks pregnant and 1 week postpartum, while there was no significant difference in the RSES scores at 24 weeks pregnant (P = 0.065). A logistic regression analysis was performed on the following factors: 'depressive symptoms immediately after delivery' (EPDS and BDI at 1 week postpartum), 'anxiety' (BAI prepartum), 'stress factors from relationships' (MSS prepartum and CSI at 1 week postpartum) or 'self-esteem' (RSES prepartum). When these four factors were added individually to a model of the prepartum depressive symptoms (EPDS and BDI prepartum), no additional effect was found.

CONCLUSIONS

The optimum psychological predictor is prepartum depression, and other psychological measures appear to bring no significant additional predictive power.

Different cutoff points for different trimesters? The use of Edinburgh Postnatal Depression Scale and Beck Depression Inventory to screen for depression in pregnant Taiwanese women

OBJECTIVE

Validating self-reported questionnaires to detect depression during pregnancy, compared to depression during postpartum, has gained much less attention. Furthermore, it is unknown whether it is appropriate to use the same cutoff point to detect depression on different trimesters of pregnancy. The aims of this study, conducted in pregnant Taiwanese women, were: (a) to validate the Taiwanese version of the Edinburgh Postnatal Depression Scale (EPDS-T) and the second edition of the Beck Depression Inventory (BDI-II); (b) to compare the EPDS-T and the BDI-II on their validity in detecting depression; and (c) to determine if these scales have different cutoff points in detecting major depressive disorder for different trimesters.

METHOD

One hundred eighty-five pregnant Taiwanese women who completed the EPDS-T and the BDI-II were interviewed by psychiatrists with the structural interview Mini-International Neuropsychiatric Interview (MINI) to establish a Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition diagnosis of major depressive disorder. We analyzed and compared the sensitivity, specificity and validity of the EPDS-T and the BDI-II against the MINI diagnosis on the second and third trimesters.

RESULTS

We identified 12/13 as the optimal cutoff of the EPDS-T, at which the sensitivity of the scale was 83% and the specificity was 89%. The optimal cutoff of the BDI-II was 11/12, at which the sensitivity of the scale was 74% and the specificity was 83%. The area under the curve of the receiver operating characteristic analysis was 0.92 for the EPDS-T and 0.84 for the BDI. There exist different optimal cutoff points of the EPDS-T for detecting major depression during different trimesters: 13/14 for the second trimester and 12/13 for the third trimester. No different optimal cutoff point for the BDI-II was found for different trimesters.

CONCLUSION

The EPDS-T has satisfactory sensitivity and specificity and better validity than the BDI-II for detecting major depressive disorder during pregnancy in pregnant Taiwanese women. We suggest that more studies with larger sample sizes be performed to confirm if there exist different cutoff points in detecting depression for different trimesters of gestation.

Social support during pregnancy: effects on maternal depressive symptoms, smoking and pregnancy outcome

BACKGROUND

The goal was to study the effects of social support during pregnancy on maternal depressive symptoms, quality of life and pregnancy outcomes.

METHODS

Eight hundred ninety-six women were prospectively studied in the first trimester of pregnancy and following completion of the pregnancy. The sample was divided into quartiles yielding groups of low, medium and high social support based on perceived social support.

RESULTS

Pregnant women with low support reported increased depressive symptoms and reduced quality of life. The effects of social support on pregnancy outcomes were particularly pronounced in women who had smoked during pregnancy, with significant main effects of social support in a two-way analysis of variance (smoking status and social support) for child body length (F = 4.26, P = 0.04; 50.43 +/- 2.81 cm with low support versus 51.76 +/- 2.31 cm with high support) and birthweight (F = 11.35, P = 0.001; 3175 +/- 453 g with low support versus 3571 +/- 409 g with high support). In smokers, pregnancy complications occurred more frequently when given low support {34 versus 10.3% with high support, chi(2) = 5.49, P = 0.019; relative risk (RR) = 3.3 [95% confidence interval (95% CI) = 1.1-10.2]}, and the proportion of preterm deliveries was greater given low support (10.0 versus 0% with high support, chi(2) = 3.84, P = 0.05, odds ratio = 8.1).

CONCLUSIONS

Lack of social support constitutes an important risk factor for maternal well-being during pregnancy and has adverse effects on pregnancy outcomes.

Maternal psychological distress during pregnancy in relation to child development at age two

Concern exists that a constellation of negative maternal emotions during pregnancy generates persistent negative consequences for child development. Maternal reports of anxiety, pregnancy-specific and nonspecific stress, and depressive symptoms were collected during mid-pregnancy and at 6 weeks and 24 months after birth in a sample of healthy women with low risk pregnancies. Developmental assessment and cardiac vagal tone monitoring were administered to 94 children at age 2. Higher levels of prenatal anxiety, nonspecific stress, and depressive symptoms were associated with more advanced motor development in children after postnatal control for each psychological measure; anxiety and depression were also significantly and positively associated with mental development. Mild to moderate levels of psychological distress may enhance fetal maturation in healthy populations.

The impact of maternal stress on pregnancy outcome in a well-educated Caucasian population

The aim of the study was to examine the association between stress and pregnancy outcome after adjustment for possible confounding and mediating variables. A prospective cohort study of 5511 pregnancies was conducted in 2001-03 in the Netherlands. A standardised questionnaire collecting demographics and mental health data was administered at 14 and 30 weeks of pregnancy. Medical data on the pregnancy and delivery were obtained from obstetricians and midwives. The results showed that a high level of perceived stress at 14 weeks of pregnancy increased the risk for delivery of an infant that was small-for-gestational-age (OR = 1.26 [95% CI 1.01, 1.56]), but the association was reduced after adjustment for the possible confounding effects of demographic variables (OR = 1.16 [95% CI 0.92, 1.47]). The results do not support a direct relationship between perceived stress and adverse pregnancy outcome. Demographic variables may explain the association between psychosocial stress and pregnancy outcome to a significant degree.

Maternal psychophysiological change during the second half of gestation

This study investigated the trajectory of physiological and psychological functioning during the second half of pregnancy and compared responsiveness to a laboratory stressor between pregnant and non-pregnant women. Monitoring of 137 pregnant women at 20, 24, 28, 32, 36, and 38 weeks of pregnancy included measures of heart period (HP), heart period variability (HPV), skin conductance (SCL), respiratory period (RP), respiratory sinus arrhythmia (RSA), and self-report of mood disturbance. HP and RSA declined during this period; SCL and mood disturbance increased. Parity was a significant moderator. HP and SCL responsiveness to the Stroop color-word task was assessed twice in pregnant participants and compared to a sample of 27 non-pregnant women. Physiologic responsiveness was reduced in pregnant women. Pregnant women perceived the Stroop to be more difficult, but performance was unaffected. Despite buffered responsivity to stressful stimuli during pregnancy, advancing gestation is associated with escalating sympathetic tone and declining parasympathetic tone.

Stress, social support, and emotional distress in a community sample of pregnant women

Emotional distress in women during pregnancy has been shown to increase the risk of adverse outcomes for women and newborns. Increasingly, assessment and management of mood and anxiety problems during pregnancy entail consideration of life stress and interpersonal relationships with partners, friends, and family members. This study describes cross-sectional relations between life stress, perceived social support, and symptoms of depression and anxiety as well as the mediating influence of social support on relations between stress and symptoms. A community sample of women (N = 2,052) provided self-report data during their second trimester of pregnancy. Empirical fit was found for a structural equation model that depicted the combined influences of sociodemographic factors (i.e., socioeconomic status, age, parity), stress (partner conflict and life events), and social support on symptoms of depression and anxiety, chi2 (df 51) = 310.65, p <.05; CFI=.91. Women who reported low levels of social support showed stronger relations between stress and symptoms than women who reported high levels of social support--indicative of a mediating effect of social support. Consistent with previous studies, results suggest that dyadic psychosocial assessment of pregnant women and their partners may facilitate interventions to augment support networks, thereby reducing the risk of emotional distress.

Measuring the ups and downs of pregnancy stress

Despite substantial interest in the effects of stress on pregnancy, few instruments are available to measure pregnancy-specific stressors. Moreover, research has typically focused on the distressing, negative aspects of pregnancy. This report examines the reliability and validity of the Pregnancy Experience Scale (PES), a 41-item scale that measures pregnancy-specific daily hassles and uplifts. The PES was administered to two cohorts of low risk women at 24, 30, and 36 weeks (n = 52) or 32 and 38 weeks (n = 137). Women perceived their pregnancies to be significantly more intensely and frequently uplifting than hassling. Internal scale reliability was high (alpha = 0.91 to 0.95). Frequency and intensity scores for hassles and uplifts were stable over time (r's = 0.56 to 0.83) and patterns of convergent and discriminant validity emerged between the PES and existing measures of general affective intensity, daily stressors, depressive symptoms, and anxiety. These results indicate that (1) failure to measure pregnancy-specific stress will underestimate the degree to which pregnant women experience distress and (2) measurement of only the negative aspects of pregnancy will overestimate distress and fail to portray the degree to which women are psychologically elevated by their pregnancies. Measurement of hassles relative to uplifts may provide the most balanced assessment of pregnancy appraisal.

Correlates of experiencing life events just before or during pregnancy

This study evaluates the prevalence of selected life events around the time of pregnancy, examining changes in the prevalence of these events, and identifying maternal characteristics associated with these events. We used data from the Pregnancy Risk Assessment Monitoring System (PRAMS) to examine 18 stressful life events among women who recently gave birth and to identify maternal characteristics associated with these events. PRAMS is a mail sample survey with telephone follow-up for non-respondents. Sixty-four percent of women experienced at least one event. The prevalence of specific events ranged from 0.4 to 30%. Women who experienced events differed from those who did not. Most notably, women of low socioeconomic status (SES) were much more likely to experience stressful life events. These events were also associated with other demographic and behavioral characteristics after controlling for SES. These results have implications for interpreting studies of stressful life events. The strong associations with SES highlight the importance of controlling for SES in studies of life events and health, and of considering differences in SES when interpreting these studies.

Self-reported leisure-time physical activity during pregnancy and relationship to psychological well-being

The psychological benefits of physical exercise have been reported in numerous populations. While studies have found elevated stress and depressed mood during pregnancy and no adverse birth effects associated with low to moderate intensity exercise, few have examined exercise in relation to psychosocial outcomes during pregnancy. The present study examined leisure-time physical activity (LTPA) patterns during pregnancy and its association to psychological well-being. In each trimester of pregnancy 180 women self-reported on frequency, form and duration of LTPA through structured interviews. Beginning in the third month of pregnancy, data was collected monthly on depressed mood (Lubin depression adjective checklist), state-anxiety, pregnancy-specific stress (pregnancy experiences questionnaire) and Hassles Scale. Independent samples t-tests comparing exercisers and non-exercisers in each trimester showed exercisers reported significantly less depressed mood, daily hassles, state-anxiety and pregnancy-specific stress in the first and second trimester. Women who exercised in the third trimester reported less state-anxiety in that trimester compared to non-exercisers. The results indicate a consistent association between enhanced psychological well-being, as measured by a variety of psychosocial inventories, and LTPA participation particularly during the first and second trimesters of pregnancy. In healthy pregnant women, even low-intensity regular exercise may be a potentially effective low-cost method of enhancing psychological well-being.

The interrelationship of maternal stress, endocrine factors and inflammation on gestational length

Preterm birth rates continue to rise in the United States despite the advent of tocolytic agents and the identification of risk factors for preterm birth, such as vaginal infection and a shortened cervix. Although improvement in gestational-age-related survival of preterm infants has occurred as a result of the use of antenatal corticosteroids, neonatal surfactant therapy, and regionalization of perinatal care, there has been no reduction in the incidence of preterm birth. Recently, investigators have appreciated that the etiology of preterm birth is heterogeneous, perhaps accounting for one reason for the failure of current interventions to improve pregnancy outcome. Both abnormal maternal hormonal homeostasis and intrauterine inflammatory responses appear to contribute to a significant proportion of the cases of preterm birth, and the interaction of the maternal endocrine and immunologic systems may contribute to the pathophysiology of this condition. An important modulator of endocrine and immune function is perceived emotional and social stress. Maternal stress has been strongly associated with preterm birth, but the links between maternal stress and resultant aberrations of maternal endocrine and immune function remain difficult to quantify and investigate. However, new insights into the role of perceived maternal stress on gestational length suggest that specific interventions to alleviate stress could contribute to an increase in gestational length and a decrease in the risk for preterm birth. This review addresses the role of maternal stress on the regulation of maternal hormone and inflammatory responses and how aberrations in these systems may lead to preterm birth.

Obstetric complications and anxiety during pregnancy: is there a relationship?

This review examines the contribution of recent research into the effects of anxiety during pregnancy. The focus of interest is upon the process of labor and delivery rather than its timing or the size of the baby. Therefore studies directed at areas of prematurity or low birthweight are specifically excluded as these have already been well evaluated in the literature. It is known that one proximal cause of obstetric complications is increased hormone levels in the uterus. It seems likely therefore that anxiety, a form of arousal, known to influence hormone levels, may be implicated as a distal determinant of obstetric complications. Attempts to evaluate this hypothesis have been hampered by methodological issues such as: poor definition and measurement of obstetric outcomes, in particular utilizing composite measures of diverse components; inappropriate measurements or over broad conceptualizations of anxiety; failure to account for confounding variables and inadequate sample sizes. On balance the evidence reviewed suggests that a general association between anxiety and obstetric complications per se does not exist, but specific types of anxiety, such as psychosocial stress, family functioning, or fear of childbirth may have associations with specific complications, such as prolonged labor or Cesarean section. Recent studies considering the effect of fear of childbirth, for example, on specific obstetric outcomes, such as type of delivery, have produced more clear-cut relationships. Recommendations for future research into the relationships between specific combinations of types of anxiety and individual obstetric complications are discussed.

Alcohol-exposed pregnancy: characteristics associated with risk

BACKGROUND

Prenatal alcohol exposure is a leading cause of neurodevelopmental deficits in children. Women who are fertile, drink alcohol, and have unprotected intercourse are at risk for an alcohol-exposed pregnancy, but little is known about this population.

METHODS

A survey was administered to 2672 English-speaking women aged 18 to 44 years from six settings, including an urban jail, a drug/alcohol treatment facility, a gynecology clinic, two primary care clinics, and respondents to a media solicitation. Bivariate and multivariate analyses were conducted to explore variables that were correlated with membership in the at-risk group.

RESULTS

Most respondents (70%) reported a household income of <$20,000; 68% had a high school or equivalent education; and 62% were African American. A total of 333 women (12.5%) met the a priori definition of "at risk" for an alcohol-exposed pregnancy. Stepwise logistic regression showed that recent drug use (odds ratio [OR]=3.1; 95% confidence interval [CI]=2.1-4.4); having smoked more than 100 cigarettes (OR=1.9, 95% CI=1.3-2.7); a history of inpatient treatment for drugs or alcohol (OR=1.8, 95% CI=1.3-2.4) or inpatient mental health treatment (OR=1.6, 95% CI=1.1-2.3); having multiple sex partners (OR=1.7, 95% CI=1.2-2.2); and recent physical abuse (OR=1.5, 95% CI=1.1-2.0) were significantly correlated with being at risk.

CONCLUSIONS

It was possible to identify diverse settings with an increased prevalence of women at risk for an alcohol-exposed pregnancy. Within these settings, women at risk were characterized by an increased frequency of selected behaviors. This information may help clinicians develop and target interventions prior to conception.

[Beneficial effect of maternity leave on delivery]

OBJECTIVE

To identify the contribution of the duration of the prenatal maternity leave on term delivery.

METHOD

Characteristics of the prenatal maternity leave and delivery among 363 working women who had delivered a full-term infant at 1 of 4 hospitals in Montreal during 1996 were studied.

RESULTS

The presence of an intervention or complication during delivery was observed in 68.9% of the participants. The average duration of the prenatal maternity leave was about 8 weeks (SD = 7). The adjusted risk of a difficult delivery decreased significantly with the duration of the prenatal maternity leave (OR = 0.96; 95% CI: 0.93-0.99).

CONCLUSION

The duration of the maternity leave before delivery is associated with an easier term delivery for working women.

Psychosocial predictors of labor/delivery complications and infant birth weight: a prospective multivariate study

Using a multidimensional approach to measure stress, this study prospectively examined the influence of maternal stress, social support and coping styles on labor/delivery complications and infant birth weight. Beginning in the third month of pregnancy, stress was assessed monthly. In each trimester, data on social support, coping strategies, lifestyle behaviors and pregnancy progress were collected. One month following delivery, information on labor, delivery and infant status was obtained. The final sample consisted of 80 women. The results demonstrated that women who experienced greater stress during pregnancy had a more difficult labor/delivery, even after controlling for parity. Younger maternal age was also linked with intrapartum complications. Perceived prenatal social support emerged as a predictor of infant birth weight. Women who reported less satisfaction with their social support in the second trimester gave birth to infants of lower birth weight. The results suggest an association between specific psychosocial variables and negative birth outcomes.

Psychosocial correlates of prepartum and postpartum depressed mood

BACKGROUND

The aim of the present study was to delineate the influence of maternal stress, social support and coping styles on depressed mood during pregnancy and the early postpartum period.

METHODS

Beginning in the third month of pregnancy, data on numerous variables including daily stress (Hassles), state-anxiety (STAI-state), pregnancy-specific stress (PEQ) and depressed mood (DACL) were collected monthly. In each trimester social support (SSQ), coping strategies (CISS) and pregnancy progress were assessed. Approximately 4-5 weeks following delivery, information on labor, delivery and infant status was collected and the DACL and the Edinburgh Postnatal Depression Scale (EPDS) were administered. The final sample consisted of 80 women.

RESULTS

Approximately 16% of the women in this sample experienced depressed mood in the postpartum and 25% of the sample reported depressed mood only during pregnancy. Women depressed only during pregnancy and those depressed in the postpartum reported more emotional coping and higher trait and state anxiety during gestation. More hassles during pregnancy was related to prepartum depressed mood, but not postpartum depressed mood. Consistent with the literature, the best predictor of postpartum depressed mood was depressed mood during pregnancy.

LIMITATIONS

The sample size was relatively small and we relied solely on self-reported depressive symptomology.

CONCLUSIONS

The findings point to specific psychosocial variables which can be targeted early in pregnancy to reduce the rate of depressed mood in the prepartum and postpartum periods.

Variations in stress levels over the course of pregnancy: factors associated with elevated hassles, state anxiety and pregnancy-specific stress

This prospective study tracked hassles, pregnancy-specific stress, and state anxiety during pregnancy. A second objective was to identify predictors of each stress dimension. Pregnant women (n=161) completed the Hassles Scale, the Pregnancy-Specific Stress Questionnaire (PEQ), and the state-anxiety scale (STAI-state) monthly, beginning in the third month of pregnancy. Hassles were found to be stable throughout the pregnancy. Women reported significantly higher pregnancy-specific stress in the first and third trimester of pregnancy, whereas state anxiety increased in the third trimester compared with the first and second trimesters. Poorer marital adjustment predicted higher Hassles during pregnancy and higher PEQ and STAI-state in the third trimester. Women who reported that the pregnancy would have a negative impact on their career scored higher on Hassles during pregnancy and higher on the PEQ in the third trimester. The occurrence of a gestational complication during pregnancy was related to higher pregnancy-specific stress in the third trimester. Younger women also reported higher PEQ results in the third trimester. The data provide support for a multidimensional conceptualization of stress during pregnancy.