A Comparison of Different Severities of Nausea and Vomiting During Pregnancy Relative to Stress, Social Support, and Maternal Adaptation

The predictive value of common symptoms in early pregnancy for complications later in pregnancy and at birth

INTRODUCTION

The aim was to investigate whether common pregnancy-related symptoms-nausea, vomiting, back pain, pelvic girdle pain, pelvic cavity pain, vaginal bleeding, itching of vulva, pregnancy itching, leg cramps, uterine contractions and varicose veins-in the first trimester of pregnancy add to the identification of women at high risk of future pregnancy and birth complications.

MATERIAL AND METHODS

Survey data linked to national register data. All women booking an appointment for a first prenatal visit in one of 192 randomly selected General Practices in East Denmark in the period April 2015-August 2016. The General Practices included 1491 women to this prospective study. Two outcomes, pregnancy complications and birth complications, were collected from the Danish Medical Birth Register.

RESULTS

Among the 1413 included women, 199 (14%) experienced complications in later pregnancy. The most serious complication, miscarriage, was experienced by 65 women (4.6%). Other common pregnancy complications were gestational diabetes mellitus (n = 11, 0.8%), gestational hypertension without proteinuria (n = 34, 2.4%), mild to moderate preeclampsia (n = 34, 2.4%) and gestational itching with effect on liver (n = 17, 1.2%). Women who experienced pelvic girdle pain, pelvic cavity pain or vaginal bleeding in the first trimester of pregnancy had a higher risk of pregnancy complications later on in later pregnancy. None of the other examined symptoms showed associations to pregnancy complications. No associations were found between pregnancy-related physical symptoms in first trimester and birth complications.

CONCLUSIONS

Symptoms in early pregnancy do not add much information about the risk of pregnancy or birth complications, although pain and bleeding may give reason for some concern. This is an important message to women experiencing these common symptoms and to their caregivers.

The Relationship between Nausea-Vomiting during Pregnancy and Attachment Styles, Marital Adjustment, and Ways of Coping

The objective of this study is to examine the relationship between nausea and vomiting during pregnancy (NVP) and attachment styles in close relationships, marital adjustment, and ways of coping with stress. This study was performed in 2019 as an analytic case-control design. The study group consists of 60 pregnant women hospitalized with a nausea-vomiting/hyperemesis gravidarum diagnosis. The control group is composed of 64 pregnant women who applied for gynecology polyclinic for routine control. The participants were applied Pregnancy-Information Form, Experiences in Close Relationships Scale-Revised (ECR-R), Marital Adjustment Test (MAT), and Coping Styles Inventory (CSI). It was observed that the scores of the pregnant women in the study group from the helpless approach subscale of CSI were significantly higher than the control group and no significant difference was found between the two groups in terms of other scale scores. A negative correlation was found between the perceived severity of nausea and the seeking social support subscale of CSI in the study group. The study revealed findings that support the biopsychosocial approach to the etiology of NVP and showed that the women with NVP use a helpless approach in coping with stress and apply seeking social support as the severity of nausea decreases.

Determinants of hyperemesis gravidarum among pregnant women attending health care service in public hospitals of Southern Ethiopia

Background

Hyperemesis gravidarum is severe nausea and excessive vomiting, starting between 4 and 6 gestational weeks, peak at between 8 and 12 weeks and usually improve and subside by 20 weeks of pregnancy. Identifying the determinants of hyperemesis gravidarum has a particular importance for early detection and intervention to reduce the health, psychosocial and economic impact. In Ethiopia there is low information on determinants of hyperemesis gravidarum.

Methods

Institution based unmatched case-control study design was conducted from April 12- June 12, 2021. A structured face-to-face interviewer administered questionnaire and checklist for document review were used to collect the data from 360 study participants (120 cases and 240 controls). The data were collected by KoBocollect 1.3, and then exported to statistical package for social science version 25 for further analysis. Both bi-variable and multivariable logistic regression analysis were done to identify the determinants and a p-value < 0.05 with a 95% confidence level was used to declare statistical significance.

Result

Being an urban dweller (AOR = 2.1, 95% CI: 1.01, 4.34), having polygamous husband (AOR = 2.92, 95% CI: 1.27, 6.68), having history asthma/ other respiratory tract infections (AOR = 3.56, 95% CI: 1.43, 8.82), saturated fat intake (AOR = 4.06 95% CI: 1.98, 8.3), no intake of ginger (AOR = 3.04 95% CI: 1.14, 8.09), and inadequate intake of vitamin B rich foods (2.2, 95% CI: 1.14–4.2) were the determinants of hyperemesis gravidarum.

Conclusion

This study revealed that, urban residence, having polygamous husband, history of asthma/other respiratory tract infections, intake of saturated fat, no intake of ginger, inadequate intake of vitamin B reach foods were found to be independent determinants of hyperemesis gravidarum. It is better if healthcare providers and government authorities exert continual effort to give health education and counselling service concerning to dietary practice and asthma attacks. It is advisable if pregnant women adhere to healthy diets and limit intake of saturated fats and also husband and nearby relatives give care and support for pregnant women.

Anxiety, depression and marital satisfaction in women with hyperemesis gravidarum: A comparative cross-sectional study in Hospital Tengku Ampuan Rahimah, Klang, Malaysia

INTRODUCTION

Hyperemesis Gravidarum (HG) is a severe form of vomiting that occurs among pregnant mothers. Due to the nature of HG, pregnant mothers may feel fatigued and burdened by it and questions have been raised about the emergence of psychiatric illness during this period of vulnerability.

METHODS

A comparative cross-sectional study using Hospital Anxiety and Depression Scale (HADS), M.I.N.I (MINI International Neuropsychiatric Interview) and ENRICH- EMS (Evaluation and Nurturing Relationship Issues, Communication and Happiness - Marital Satisfaction Scale) were performed in a group of 112 pregnant women.

RESULTS

There were no differences in the prevalence rate of any anxiety disorder among the patient with HG vs comparative group (9% vs 3%, P > 0.05) and depressive disorder in women with HG vs comparative group (16% vs 8%, P > 0.05) respectively. There were associations between HG and gravida, past history of miscarriage, and gestational diabetes (P < 0.05). After adjustment, only past history of gestational diabetes was associated with HG as a protective factor (AOR 0.034 95% CI 0.002-0.181; P = 0.0014). We found that women in the HG group tended to score statistically significantly higher than the comparison group for depressive symptoms in the HADS Depression subscale (P = 0.041).

DISCUSSION

We found no convincing association between HG and anxiety disorder, depressive disorder, and marital satisfaction, but women with HG statistically significantly reported more depressive symptoms than women who were not diagnosed with HG. Psychiatric evaluation should be considered for women with HG.

Association between nausea and vomiting of pregnancy and postpartum depression: the Japan Environment and Children's Study

OBJECTIVE

Postpartum depression (PPD) is a global emotional distress that affects women and their offspring regardless of their culture. The association between nausea and vomiting of pregnancy (NVP) and PPD has been widely described only for the severe form of NVP. We aimed to assess the relationship between PPD and NVP with regards to its severity.

METHODS

Data from the Japan Environment and Children's Study (JECS), a birth cohort study, were analyzed. PPD was assessed using the Edinburgh Postnatal Depression Scale (EPDS). Multiple logistic regression models were performed to assess the association between NVP and PPD.

RESULTS

Out of the 80,396 women included in the study 14% had PPD. Among them 4,640 (42.1%) had mild NVP; 3,295 (29.9%) had moderate NVP whereas 1,481 (13.4%) had severe NVP. All forms of NVP were associated with PPD and the association gradually increased with the severity of NVP symptoms with odd ratio (OR): 1.26; 95% confidence interval (CI): 1.18-1.35 for mild, OR: 1.28; 95% CI: 1.19-1.38 for moderate and OR: 1.54; 95% CI: 1.42-1.68 for severe NVP.

CONCLUSION

Japanese women with NVP were more susceptible to develop PPD and the more severe the NVP symptoms were, the greater the risk of PPD. Thus, close monitoring of NVP-affected women is recommended.

Emerging Progress in Nausea and Vomiting of Pregnancy and Hyperemesis Gravidarum: Challenges and Opportunities

Nausea and vomiting of pregnancy (NVP) is a common condition that affects up to 70% of pregnant women. Hyperemesis gravidarum (HG) is considered the serious form of NVP, which is reported in 0.3–10.8% of pregnant women. NVP has a relatively benign course, but HG can be linked with some poor maternal, fetal, and offspring outcomes. The exact causes of NVP and HG are unknown, but various factors have been hypothesized to be associated with pathogenesis. With the advance of precision medicine and molecular biology, some genetic factors such as growth/differentiation factor 15 (GDF15) have become therapeutic targets. In our review, we summarize the historical hypotheses of the pathogenesis of NVP and HG including hormonal factors, Helicobacter pylori, gastrointestinal dysmotility, placenta-related factors, psychosocial factors, and new factors identified by genetics. We also highlight some approaches to the management of NVP and HG, including pharmacological treatment, complementary treatment, and some supporting treatments. Looking to the future, progress in understanding NVP and HG may reduce the adverse outcomes and improve the maternal quality of life during pregnancy.

The effects of psychological counseling and acupressure based on couple therapy procedure for alleviation of vomiting and nausea in pregnant women in Iran country

OBJECTIVES

Nausea and vomiting have psychological negative effects on some pregnant women during gestation. Different strategies have been used for the treatment of nausea and vomiting during pregnancy, such as acupressure and psychological interventions. This study was conducted to evaluate the effects of psychological counseling and acupressure based on couple therapy procedures on vomiting and nausea in pregnant women in Iran.

METHODS

Two hundred and eight women were divided into four groups (n=52): 1) they did not any intervention (control group), 2) they received the psychological intervention, 3) they received acupressure intervention, and 4) they received a combination of psychological + acupressure interventions. To investigate the effects of interventions on nausea and vomiting, the Rhodes index of nausea, vomiting and retching were used. The counseling period has lasted for 4 weeks. The pressure intervention on the site was conducted in clockwise form for 1 min and anticlockwise form for another 1 min.

RESULTS

Groups did not have a significant difference for abortion and income (p>0.05). The effects of counseling, and acupressure interventions on severity and period of vomiting and nausea were not significant (p>0.05), but the intervention based on counseling and acupressure decreased severity of vomiting and nausea (p<0.05).

CONCLUSIONS

The intervention based on counseling and acupressure could not reduce nausea and vomiting during the gestation, but the intervention based on a combination of both decreased nausea and vomiting. It can be suggested to apply an intervention based on a combination of counseling and acupressure in short-time period for decreasing nausea and vomiting in women during pregnancy.

The effect of hyperemesis gravidarum on prenatal adaptation and quality of life: a prospective case-control study

AIM

The aim of the study was to determine the adaptation status of hyperemesis gravidarum in pregnancy and its effects on quality of life.

METHODS

The study was carried out between January and December 2018 in at the gynecology services and obstetrics clinics of a public hospital in Turkey. The study included pregnant women as the case group (n = 150) in their first and second trimesters diagnosed with hyperemesis gravidarum and pregnant women with healthy pregnancy (n = 150). In order to obtain information pertinent to the participants, a "Personal Information Form" was used, the "Quality of Life (SF36) Form" was used to determine quality of life, and to determine adaption to pregnancy, the "Prenatal Self-Evaluation Scale" was applied. Only the "Acceptance of Pregnancy" and "Acceptance of the Role of the Motherhood" subdimensions were included in the study since the pregnant women in their first and second trimesters participated.

RESULTS

Acceptance of pregnancy (p = .000) and acceptance of the role of motherhood (p = .018) were found to be significantly lower in the pregnant women with hyperemesis gravidarum in comparison to the healthy pregnant women. The quality of life levels of the pregnant women with hyperemesis gravidarum were found to be lower than those in the healthy pregnant women (p < .001). According to the correlation analysis that was performed, it was determined that the decrease in the quality of life coincided with the decrease in acceptance of the role of motherhood (p < .001).

CONCLUSIONS

Hyperemesis gravidarum adversely affects quality of life. Additionally, hyperemesis gravidarum and low quality of life negatively affect acceptance of pregnancy and the role of motherhood.

Examining to what extent pregnancy-related physical symptoms worry women in the first trimester of pregnancy: a cross-sectional study in general practice

BACKGROUND

Women often wish to discuss their pregnancy symptoms with their GP. However, the two parties' understanding of symptoms may not be aligned.

AIM

To examine to what degree a specific pregnancy-related symptom worried women in the first trimester and analyse the characteristics of the most worried women.

DESIGN & SETTING

A cross-sectional study was performed in general practice in Denmark from 1 March 2015-15 August 2016.

METHOD

Women attending the first prenatal care visit completed a questionnaire about pregnancy-related physical symptoms and worries. Women were recruited from 125 GP practices and 294 GPs participated in the study. Further data were obtained from their pregnancy health record. Multivariable logistic regression analysis was used to assess the associations between the women's worries and the severity of the symptoms, which were adjusted for age and parity.

RESULTS

A total of 1508 women, aged 16-45 years, were included and 1455 completed the questionnaire. Nausea, vomiting, pelvic cavity pain, and back pain were the most common symptoms, and 88% reported having two or more symptoms simultaneously. Among the 1278 women reporting nausea, only 21% were worried, while 88% of the 252 women reporting vaginal bleeding were worried. Primigravidae (those pregnant for the first time) were significantly more worried about vomiting and nausea than multigravidae (those who have experienced pregnancy previously). Those aged >35 years were more worried about pelvic girdle pain and pelvic cavity pain than younger women.

CONCLUSION

Pregnancy-related physical symptoms are frequent in the first trimester. The severity of worries depends on the symptom. Vaginal bleeding and pain give rise to the majority of severe worries, especially among young women.

Physician Parents Attending Work Despite Own Sick Children: A Qualitative Study on Caregiver Presenteeism Among Norwegian Hospital Physicians

BACKGROUND

Studies have shown that physicians manifest a clear duty to work, even in the face of personal risk, and despite their own symptoms of ill health; this is termed presenteeism. We lack knowledge on their willingness to attend work when their children are sick or in times of concern for their unborn; this is termed caregiver presenteeism. To gain a comprehensive knowledge on the occurrence of presenteeism among physicians, it is important to include caregiver presenteeism.

OBJECTIVE

The aim of this study is to explore the perception and experience with caregiver presenteeism among hospital physicians who are parents or pregnant and to explore its foundations and its consequences.

METHODS

Secondary thematic analysis of semi-structured interviews of hospital physicians (N = 18).

RESULTS

Positive and negative dimensions associated with (1) situations with severe pregnancy symptoms or responsibility for sick children; (2) the perceived impact on their work commitments, personal health, and adequate care for own children; (3) accompanying moderators in the organisational structure and professional culture; and (4) proposed approaches to resolve caregiver and work responsibilities simultaneously contributing to caregiver presenteeism.

CONCLUSIONS

The study underlines the impact of factors in organisational structure, professional culture, and the personal sphere affecting caregiver presenteeism. It appears that targeting factors contributing to attendance pressure in physicians, including those who are pregnant, is particularly important. This includes changing attitudes towards caregiver responsibilities among physician colleagues, department leaders, and physicians themselves, as well as simple cost-efficient organisational interventions in staffing, routines of absence, and work adjustment.

Transformation of quality of life in prenatal women with nausea and vomiting

PROBLEM

Nausea and vomiting not only cause physical discomfort in pregnant women but also impact their quality of life.

BACKGROUND

Few longitudinal studies have been conducted to investigate QOL of women over the course of pregnancy.

AIM

To examine the transformation of health-related QOL and related factors among pregnant women with NV during three trimesters.

METHODS

A longitudinal research design with convenience sampling was used. A structural questionnaire was used to repeatedly measure the data of 101 pregnant women with NV during the first, second, and third trimesters. A generalized estimating equation (GEE) was used to analyze the collecting data.

FINDINGS

The results showed significant differences in symptom distress, prenatal stress, and health-related QOL among the three trimesters in pregnant women with NV (p<0.001). The scores of symptom distress, prenatal stress, and health-related QOL in the first trimester were significantly higher than those in the second and third trimesters (p<0.001). The GEE indicated that the trimester of pregnancy, severity of NV, symptom distress, and prenatal stress were key factors for the transformation of health-related QOL of women with NV during pregnancy.

DISCUSSION

The findings of this study are seminal in terms of understanding the relationships between symptom distress, prenatal stress and health-related QOL in pregnant women with NV over the course of a pregnancy.

CONCLUSION

This study can serve as a reference for designing interventions (i.e., professional support) for women in different pregnancy stages to improve their health-related QOL during pregnancy.

The effect of counselling on nausea and vomiting in pregnancy in Turkey

OBJECTIVES

The aim of this study was to assess the effects of follow-up counselling on the duration and severity of nausea and vomiting in pregnant women.

STUDY DESIGN

This study is quasi-experimental and included 62 pregnant women with nausea and vomiting. The group that received counselling was considered to be the experimental group, and the group that received a standard outpatient clinic service was the control group. Data were collected with a demographic data form, that is, the Nausea and Vomiting in Pregnancy Instrument and Pregnancy Unique Quantification of Emesis and Nausea. Significance tests of the differences between two mean values, the Mann-Whitney U test and survival analyses were used to test the hypotheses.

RESULTS

In pregnant women with mild or moderate nausea and vomiting, nausea and vomiting terminated in a significantly shorter time in the experimental group than in the control group (p <0.001), but this difference was not significant for pregnant women with severe nausea and vomiting (p > 0.05). In addition, the number of weekly telephone follow-ups in the experimental group was significantly smaller (p <0.001).

CONCLUSION

Counselling effectively reduced the duration and severity of mild or moderate nausea and vomiting during pregnancy. However, it did not affect the duration of severe nausea and vomiting during pregnancy.

Effects of professional support on nausea, vomiting, and quality of life during early pregnancy

The purpose of this study was to examine the effectiveness of a professional support (PS) intervention (including individualized health education and supportive phone calls) in reducing the severity of nausea and vomiting (NV) and improving the quality of life (QOL) of women in early pregnancy. An experimental pretest/posttest design with a control group was used. Participants were recruited from a regional teaching hospital in southern Taiwan. The women in the experimental group (n = 40) received the PS intervention, while those in the control group (n = 39) only received routine nursing care. Analysis of covariance and mixed models were used to compare the experimental and control groups while adjusting for covariates. The severity of NV and the perceived level of symptom distress were significantly lower in the experimental group than in the control group during weeks 2 and 4, and the women in the experimental group showed a significant improvement in their QOL in week 4 (p < .05). However, there was no significant difference between the two groups in body weight at week 4 (p = .501). These findings provide empirical evidence in support of the effectiveness of PS in reducing the severity of NV and improving QOL for women during early pregnancy. This intervention could be routinely applied in prenatal nursing health education. Future studies could apply the concept of PS to different populations and health issues.

The relationships of social support, uncertainty, self-efficacy, and commitment to prenatal psychosocial adaptation

AIMS

To report a study of the relations of prenatal psychosocial adaptation, social support, demographic and obstetric characteristics, uncertainty, information-seeking behaviour, motherhood normalization, self-efficacy, and commitment to pregnancy.

BACKGROUND

Prenatal psychosocial assessment is recommended to identify psychosocial risk factors early to prevent psychiatric morbidities of mothers and children. However, knowledge on psychosocial adaptation and its explanatory variables is inconclusive.

DESIGN

This study was non-experimental, with a cross-sectional, correlational, prospective design.

METHODS

The study investigated Hong Kong Chinese women during late pregnancy. Convenience sampling methods were used, with 550 women recruited from the low-risk clinics of three public hospitals. Data was collected between January-April 2007. A self-reported questionnaire was used, consisting of a number of measurements derived from an integrated framework of the Life Transition Theory and Theory of Uncertainty in Illness. Explanatory variables of psychosocial adaptation were identified using a structural equation modelling programme.

RESULTS

The four explanatory variables of the psychosocial adaptation were social support, uncertainty, self-efficacy, and commitment to pregnancy. In the established model, which had good fit indices, greater psychosocial adaptation was associated with higher social support, higher self-efficacy, higher commitment to pregnancy, and lower uncertainty.

CONCLUSION

The findings give clinicians and midwives guidance in the aspects to focus on when providing psychosocial assessment in routine prenatal screening. Since there are insufficient reliable screening tools to assist that assessment, midwives should receive adequate training, and effective screening instruments have to be identified. The explanatory role of uncertainty found in this study should encourage inquiries into the relationship between uncertainty and psychosocial adaptation in pregnancy.

Health-related quality of life in women with nausea and vomiting of pregnancy: the importance of psychosocial context

OBJECTIVE

To test whether women with hyperemesis gravidarum (HG) demonstrated lower health-related quality of life (HRQoL) scores compared with those with nausea and vomiting of pregnancy (NVP).

STUDY DESIGN

Women with HG or NVP were examined during the first trimester. Multivariate models identified characteristics of women at risk for low HRQoL, as measured by an NVP-specific HRQoL test and a generic HRQoL test, the Short Form (SF)-36.

RESULT

Although the SF-36 assessment did not discriminate between the two groups, the NVP-specific test showed that women with HG (N=29) were 3-6 times more likely than women with NVP (N=48) to have low HRQoL. Both tests demonstrated that perceived physical symptoms and multiple psychosocial factors, such as depression and marital status, seemed to be equally or more important than having HG.

CONCLUSION

Although a low HRQoL was associated with an HG diagnosis, multiple physical symptoms and psychosocial factors placed both groups of women at risk.

Biomarkers and Perceived Emotional Stress in Early-Stage Pregnant Taiwanese Women With Nausea and Vomiting

The purpose of this study was to compare physiological and psychological reactions among Taiwanese women with different degrees of severity of nausea and vomiting (NV) during pregnancy. Based on their scores on the Index of Nausea, Vomiting, and Retching (INVR), 59 pregnant women ≥ 18 years of age, with single gestations and without diagnosed pregnancy complications or hospitalizations were divided into two groups: mild or less (scores 0–8, n = 33) and moderate or severe (scores 9–32, n = 26). A single blood sample was obtained early in pregnancy during a prenatal visit to examine the biochemical data related to NV and stress. The INVR and Perceived Stress Scale were also administered at this time. Human chorionic gonadotropin (hCG) and leptin levels were significantly different between the two groups, whereas IFN-α, IL-2, TNF-α, adiponectin, perceived stress, and cortisol showed no significant differences. The cutoff point between high and low levels of NV severity was consistent between INVR scores (psychological reactions) and hCG level (physiological reactions). Logistic regression analysis indicated that leptin levels accounted for 24.4% of the variance for NV in early pregnancy. A further multiple linear regression analysis showed that NV, first trimester pregnancy body mass index (BMI), and age explained 72.4% of the variance in leptin levels. The findings of this study add new information to the understanding of the biomarkers and perceived emotional stress in early-stage pregnant women with high and low severities of NV.

Relationships Between Leptin, hCG, Cortisol, and Psychosocial Stress and Nausea and Vomiting Throughout Pregnancy

The purposes of this prospective, longitudinal study were to examine the relationships between leptin, human chorionic gonadotropin (hCG), cortisol, and psychosocial stress and nausea and vomiting (NV) in women with mild-to-moderate NV throughout pregnancy. Participants comprised 91 pregnant women recruited from prenatal clinics in southern Taiwan. Data analysis using one-way analysis of variance (ANOVA) indicated that leptin, hCG, cortisol levels, and Index of Nausea, Vomiting, and Retching (INVR) scores, but not stress (measured with the Visual Analog Scale, VAS) scores, were significantly different among the three trimesters. The average INVR score and hCG level decreased from the first to third trimesters (p < .0001 for both). The average leptin and cortisol levels increased from the first to third trimesters (p = .001 and p < .0001, respectively). Analysis using mixed models indicated that the INVR scores decreased significantly in a progressive manner through the stages of pregnancy and were significantly lower in the second and third trimesters. Findings reveal that stress/VAS and hCG may both be significantly and independently associated with INVR scores. Future research should examine psychosocial reactions in addition to exploring other biochemical markers related to NV and stress.

A longitudinal study of nausea and vomiting, fatigue and perceived stress in, and social support for, pregnant women through the three trimesters

Nausea and vomiting (NV), fatigue, stress and social support during pregnancy have been well documented using cross-sectional research designs. However, few studies have addressed the patterns and relationships for these variables using a longitudinal research design. The purpose of this study was to examine the patterns of and relationships among NV, fatigue, perceived stress, and social support in pregnant women throughout the three trimesters. A prospective and longitudinal study was conducted from 2003 to 2005. Data were collected on four different measures: the Index of Nausea, Vomiting, and Retching (INVR), the Visual Analog Fatigue Scale (VAFS), the Perceived Stress Scale (PSS), and the Brief Social Support Questionnaire (BSSQ). A total of 91 pregnant women were recruited from prenatal clinics in southern Taiwan. One-way ANOVA indicated that INVR scores and fatigue were significantly different among the three trimesters, but that perceived stress and social support were not. Post hoc analyses, using least significant difference testing, indicated that the first trimester was associated with significantly higher levels of NV than were the second and third trimesters. The first and third trimesters had significantly higher fatigue levels than did the second trimester. Mixed models indicated that the differences among INVR scores among the three trimesters were independent of gravidity, planned pregnancy and age. The difference in fatigue between the first and second trimesters was independent of gravidity, planned pregnancy and age, but fatigue was positively associated with NV. Perceived stress was positively correlated with NV. However, when further examining the relationships among the key variables by adding fatigue, perceived stress was found to positively correlate with fatigue and not NV, and negatively correlated with social support. The findings of this study provide a more comprehensive understanding and evidence-based data of the patterns of and relationships among the above four key variables for pregnant women throughout the three trimesters. This will help health care professionals to provide more effective and appropriate care strategies based on the different stages of pregnancy.

Validation of the nausea and vomiting of pregnancy specific health related quality of life questionnaire

Background

The only existing NVP-specific quality of life (QOL) questionnaire is the "Health-Related Quality of Life for Nausea and Vomiting during Pregnancy" (NVPQOL). However, the reliability and validity of the NVPQOL have never been established. In order to justify its usage, the internal consistency and criterion validity of the NVPQOL questionnaire must be ascertained.

Methods

A prospective observational study including pregnant women attending CHU Sainte-Justine or René-Laennec clinics for their prenatal care was conducted from 2004 to 2006. Women were eligible if they were ≥ 18 years of age and ≤ 16 weeks of gestation at the time of their first prenatal visit. During this initial visit, women who reported NVP were also asked to complete the NVPQOL and the SF-12. Cronbach's alpha coefficients were calculated as the measures of the internal consistency of the NVPQOL. With respect to the criterion validity, linear regression models were built to measure the association between the NVPQOL and the SF-12 scores.

Results

Of the 367 women included in the study, 288 (78.5%) reported NVP in the first trimester of pregnancy. Among these women, the Cronbach's alpha coefficients were high for the complete NVPQOL questionnaire (α = 0.98), and for the four distinct domains [physical symptoms and aggravating factors (α = 0.90); fatigue (α = 0.94); emotions (α = 0.86); limitations (α = 0.97)]. NVP-specific QOL as measured by the NVPQOL was significantly associated with physical and mental QOL as measured by the SF-12.

Conclusion

Our data suggest that the NVPQOL is a reliable and valid index to measure NVP-specific QOL in the first trimester of pregnancy.