Cross-sectional community survey of menopause symptoms among Japanese women

Climate Change and Occupational Heat Strain Among Women Workers: A Systematic Review

Climate change increases heat stress exposure and occupational heat strain in tropical and subtropical regions with generally hot-humid climate conditions. The present systematic review was conducted to assess the effect of climate change on occupational heat strain among women workers. In this study, three main databases (PubMed, Scopus, and Web of Science) were searched to find relevant literature on climate change and its effects using subject headings and appropriate MeSh terms. This article has been written according to the PRISMA checklist. A total of 6,176 studies were identified for screening and 13 studies were eligible for data extraction. Scientific evidence reveals that there is an imprecise but positive relationship between climate change and occupational heat strain regarding women workers. Some complications associated with occupational heat strain among women workers include fatigue, discomfort, dehydration, reduced brain function, and loss of concentration. Climate change can lead to an increase in the occurrence of heat-related illnesses and the levels of injury risk. In addition, its adverse health effects on women workers are mentioned. This systematic study identifies key priorities for action to better characterize and understand how occupational heat strain among women workers may be associated with climate change events. Strong evidence indicates that climate change will continue to cause occupational heat strain among women workers. It is essential to implement preventive measures considering multidisciplinary strategies to reduce the adverse effects of climate change on women workers health in hot weather settings. This can limit the health risks and negative effects of climate change.

Impact of menopausal symptoms on presenteeism in Japanese women

BACKGROUND

Menopausal symptoms are common among middle-aged women. Working women with severe menopausal symptoms are more likely to experience presenteeism-a condition where employees continue to work despite feeling unwell. However, it remains unclear as to which specific symptoms women experience during the menopausal transition and postmenopausal periods that primarily contribute to presenteeism.

AIMS

To evaluate the associations between types of menopausal symptoms and presenteeism among Japanese women.

METHODS

A cross-sectional study of 4000 women aged 40-59 years who were currently working was conducted in Japan in September 2022. We used an online self-administered questionnaire that included items on demographic characteristics, the Menopause Rating Scale for measuring menopausal symptoms and the Work Functioning Impairment Scale for measuring presenteeism. Logistic regression analysis was performed.

RESULTS

Women with severe overall menopausal symptoms had 12.18-fold (95% confidence interval [CI] 9.09-16.33, P < 0.001) increased odds of presenteeism compared with those without symptoms. Participants with psychological symptoms also had significantly higher presenteeism (severe: odds ratio: 9.18, 95% CI 6.60-12.78, P < 0.001). However, after controlling for psychological symptoms, there were no significant associations between somatic and urogenital symptoms and presenteeism.

CONCLUSIONS

The results indicate that menopausal symptoms, especially psychological symptoms, have a significant impact on presenteeism among Japanese women. Organizations need to address menopausal symptoms in the workplace, with an emphasis on reducing work-related stress for women with menopausal symptoms.

Global prevalence of sleep disorders during menopause: a meta-analysis

BACKGROUND

Sleep disorders are conditions that have long-term effects on health, quality of sexual function, productivity at work, and overall quality of life. Considering that reports on menopausal sleep disorders are heterogeneous, the aim of this research was to determine the global prevalence of sleep disorders during menopause by meta-analysis.

METHODS

PubMed, Google Scholar, Scopus, WoS, ScienceDirect, and Embase databases were checked with suitable keywords. All screening stages of articles were reviewed based on PRISMA and their quality was determined based on STROBE. Data analysis, examination of heterogeneity, and publication bias of factors affecting heterogeneity were performed in CMA software.

RESULTS

The overall prevalence of sleep disorders among postmenopausal women was 51.6% (95% CI: 44.6-58.5%). The upper prevalence of sleep disorders was among postmenopausal women at 54.7% (95% CI: 47.2-62.1%). The upper prevalence of sleep disorders in the same population category was related to restless legs syndrome with a prevalence of 63.8% (95% CI: 10.6-96.3%).

CONCLUSION

In this meta-analysis, sleep disorders during menopause were found to be common and significant. Therefore, it is recommended that health policymakers offer pertinent interventions in relation to the health and hygiene of sleep for women in menopause.

Patients with palpitations experience a higher symptom burden prior to breast cancer surgery

PURPOSE

Anxiety, depression, sleep disturbance, fatigue, cognitive dysfunction, and pain are common symptoms reported by patients with breast cancer. Recent evidence suggests that palpitations, a feeling of the heart racing or pounding, may be equally common. Study purpose was to compare the severity and clinically meaningful occurrence rates of common symptoms and quality of life (QOL) outcomes between patients with breast cancer who did and did not report palpitations prior to surgery.

METHODS

Patients (n = 398) were classified as having or not having palpitations using a single item from the Menopausal Symptoms Scale. Valid and reliable measures were used to assess state and trait anxiety, depression, sleep disturbance, fatigue, energy, cognitive function, breast symptoms, and QOL. Between group differences were evaluated using parametric and non-parametric tests.

RESULTS

Patients with palpitations (15.1%) reported significantly higher severity scores for state and trait anxiety, depression, sleep disturbance, and fatigue as well as significant decrements in energy and cognitive function (all p < .05). A higher percentage of these patients had clinically meaningful levels of state anxiety, depression, sleep disturbance and decrements in cognitive function (all p < .05). Except for spiritual well-being, QOL scores were lower in the palpitations group (all p < .001).

CONCLUSION

Findings support the need for routine assessment of palpitations and management of multiple symptoms in women prior to breast cancer surgery.

Palpitations across the menopause transition in SWAN: trajectories, characteristics, and associations with subclinical cardiovascular disease

OBJECTIVE

Our objectives were to identify trajectories of palpitations over the menopause transition, characterize them, and examine associations with subclinical cardiovascular disease (CVD).

METHODS

We analyzed the following data from the multisite, multiethnic SWAN (Study of Women Across the Nation): reported palpitations occurrence over time; baseline sociodemographic, reproductive, medication, and health-related factors; and follow-up visit subclinical CVD (carotid atherosclerosis, vascular stiffness). Trajectories of palpitations (n = 3,276), their characteristics, and their associations with subclinical CVD (n = 1,559) were identified using group-based trajectory modeling and linear and logistic regression models.

RESULTS

Three trajectories emerged: high probability of palpitations in perimenopause to early postmenopause diminishing in late postmenopause (15.9% of women), moderate probability of palpitations in perimenopause to early postmenopause diminishing in late postmenopause (34.3%), and sustained low probability of palpitations (49.8%). In the fully adjusted multivariable model, the high probability group had a more adverse reproductive and health-related profile at baseline (higher gravidity, early perimenopause, vasomotor symptoms, poorer overall health, higher depressive symptoms, higher perceived stress, greater sleep problems, higher blood pressure). In fully adjusted multivariable models, palpitation trajectories were not related to atherosclerosis or arterial stiffness.

CONCLUSIONS

Distinct patterns of palpitations emerged, with a substantial portion of women having palpitations during the perimenopause and early postmenopause. Palpitations were not associated with subclinical CVD. Findings can help identify women at risk of palpitations during the menopause transition who may need symptom relief.

Correlates of palpitations during menopause: A scoping review

Objective:

Palpitations during peri- and post-menopause are common. It is unclear what variables are related to palpitations in peri- and post-menopausal women. The purpose of this scoping review was to summarize potential correlates of palpitations in women transitioning through menopause.

Methods:

The review followed the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR). Authors included English-language, full-length, peer-reviewed, cross-sectional research articles on palpitations in menopausal women published through December 18, 2021, from PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), and PsycINFO searches. Following de-duplication, screening of titles and abstracts, and review of full-texts, independent reviewers extracted data on variables studied in relationship to palpitations from 84 articles and resolved discrepancies. Authors extracted data on (1) demographic, clinical, biomarker, and symptom/quality of life variables and (2) data analysis method (bivariate, multivariate). Authors classified each variable as a likely, unlikely, or unclear correlate of palpitations.

Results:

Articles were diverse in region of origin, sample sizes, and variables assessed in relationship to palpitations. Evidence for any one variable was sparse. Likely correlates of palpitations included race/ethnicity, lower physical activity, worse vasomotor symptoms (VMSs), worse sleep, and worse quality of life. Unlikely correlates included age, employment, education, marital status, socioeconomic status, comorbidities, body mass index, and sexual difficulties. Unclear correlates due to equivocal evidence were menopausal status, smoking, and depression. Unclear correlates due to insufficient evidence (less than three articles) included all of the assessed biomarkers, anxiety, and stress.

Conclusion:

Likely correlates were identified including race/ethnicity, physical activity, VMS, sleep, and quality of life. However, additional research is needed to better understand potential correlates of palpitations.

Prevalence and risk factors for menopausal symptoms in middle-aged Chinese women: a community-based cross-sectional study

OBJECTIVES

To examine the prevalence and risk factors of menopausal symptoms in middle-aged Chinese women.

METHODS

A cross-sectional, community-based study recruited 6,745 women aged 40 to 55 years in the eastern, central, and western regions of China during 2018. Menopausal status was categorized into reproductive stage (defined as regular menstruation or subtle changes in menstrual cycle characteristics), menopausal transition (the beginning of a persistent difference of 7 d in the length of consecutive cycles, or the last menstruation having occurred no more than 12 mo), or postmenpause (the end of the 12 mo period of amenorrhea) according to the Stages of Reproductive Aging Workshop classification. Menopausal symptoms were determined by the modified Kupperman Menopausal Index (KMI) questionnaire and considered nonmenopausal symptoms (total KMI score<15) and menopausal symptoms (total KMI score≥15). Demographic, lifestyle, physical, and menopausal characteristics were collected by face-to-face interviews. Logistic regression models were used to identify factors associated with the risk of menopausal symptoms.

RESULTS

Among all participants, the mean age was 46.9 years, and 15.7% (1,001/6,364) of participants reported experiencing menopausal symptoms. The prevalence of menopausal symptoms was 9.3% (303/3,256), 23.9% (293/1,227), and 21.5% (405/1,881) in the reproductive stage, menopausal transition, and postmenopausal stage, respectively. Overall, the three most prevalent menopausal symptoms were insomnia (44.7%), fatigue (40.4%), and mood swings (37.2%). The multivariable logistic regression model showed that menopausal status, residence, nulliparity, and chronic diseases were associated with the risk of menopausal symptoms (all P < 0.05). Women during menopausal transition (OR = 2.66, 95% CI: 2.21-3.20) or postmenopause (OR = 2.26, 95% CI: 1.82-2.80) had significantly increased risk of menopausal symptoms compared with those in the reproductive stage.

CONCLUSIONS

Menopausal status, residence, nulliparity, and chronic diseases were associated with menopausal symptoms in middle-aged Chinese women.

Vasomotor symptoms, sleep problems, and depressive symptoms in community-dwelling Japanese women

Aim

To assess prevalence and characteristics of vasomotor symptoms in community‐dwelling Japanese women.

Methods

These were cross‐sectional analyses using data from the National Institute for Longevity Sciences‐Longitudinal Study of Aging. The main outcome measures were prevalence and severity of hot flashes and sweating. Associations between hot flashes/sweating (slight, moderate, or severe vs none) and sleep problems were explored using logistic regression, with and without adjustment for age, daily physical activity, and number of urinations/night. Associations between hot flashes/sweating and sleep problems, depressive symptoms, and dietary variables were explored in logistic regression models or general linear models.

Results

A total of 1152 women between 40 and 91 years of age were enrolled. Hot flashes were reported by 24.5% of participants; with prevalence and severity highest in those 50–54 years or 2–5 years postmenopause. Sleep problems were reported 15 percentage points more frequently by women who reported hot flashes than by those without hot flashes. Adjusted odds ratios [95% CI] for difficulty in falling asleep and difficulty in sleeping through were 2.09 [1.565–2.796] and 2.07 [1.549–2.763]), respectively. Also, hot flashes were associated with higher risk of depressive symptoms (adjusted odds ratio [95% CI]: 2.99 [2.07–4.32]) and lower life satisfaction, self‐esteem, and self‐rated health status. A similar pattern was observed in women with and without sweating. No associations were found between hot flashes and dietary factors.

Conclusions

Clear associations were found between hot flashes and sleeping problems, even after adjusting for potential confounding factors. Women who reported hot flashes also reported worse mental and physical health than those who did not report hot flashes.

Review of menopausal palpitations measures

Palpitations are reported commonly by women around the time of menopause as skipped, missed, irregular, and/or exaggerated heartbeats or heart pounding. However, much less is known about palpitations than other menopausal symptoms such as vasomotor symptoms. The objective of this review was to integrate evidence on menopausal palpitations measures. Keyword searching was done in PubMed, CINAHL, and PsycINFO for English-language, descriptive articles containing data on menopause and palpitations and meeting other pre-specified inclusion criteria. Of 670 articles, 110 met inclusion criteria and were included in the review. Results showed that 11 different measures were used across articles, with variability within and between measures. Inconsistencies in the wording of measurement items, recall periods, and response options were observed even when standardized measures were used. Most measures were limited to assessing symptom presence and severity. Findings suggest that efforts should be undertaken to (1) standardize conceptual and operational definitions of menopausal palpitations and (2) develop a patient-friendly, conceptually clear, psychometrically sound measure of menopausal palpitations.

Independent association of palpitation with vasomotor symptoms and anxiety in middle-aged women

OBJECTIVE

Palpitation, or the sensation of rapid or irregular heartbeats, is common in menopausal women; however, the precise underlying mechanisms are unknown. We aimed to investigate factors associated with palpitation in middle-aged women.

METHODS

Medical records of 394 women aged 40 to 59 years (108 premenopausal, 85 perimenopausal, and 201 postmenopausal) were analyzed cross-sectionally. Palpitation severity was estimated based on responses to the Menopausal Symptom Scale. Effects of background characteristics, including age, menopausal status, body composition, cardiovascular parameters, basal metabolism, physical fitness, lifestyle factors, vasomotor, and psychological symptoms on palpitation were assessed using multivariate logistic regression analysis. The association between autonomic nervous system activity and palpitation was also analyzed in 198 participants.

RESULTS

Prevalence of palpitation by severity was as follows: none, 26.4%; mild, 32.7%; moderate, 29.4%; severe, 11.4%. In univariate analyses, the more severely the women were affected by palpitation, 1) the higher their systolic blood pressure, 2) the less exercise they performed, 3) the lower they scored in the sit-and-reach test, 4) the higher their vasomotor symptoms score in the Menopausal Health Related-Quality of Life questionnaire, and 5) the higher their Hospital Anxiety and Depression Scale. Multiple logistic regression analysis revealed that moderate to severe palpitation was independently associated with the vasomotor symptom score (adjusted odds ratio [95% confidence interval]: 1.18 [1.07-1.31]) and Hospital Anxiety and Depression Scale anxiety subscale score (1.19 [1.12-1.27]).

CONCLUSIONS

Rapid or irregular heartbeats are highly prevalent in middle-aged women. It is not associated with age, menopausal status, heart rate, arrhythmia, autonomic nervous system activity, caffeine, or alcohol consumption, but with vasomotor symptoms and anxiety.

Posttraumatic Stress Disorder and Likelihood of Hormone Therapy Use among Women in the Nurses' Health Study II: A 26-Year Prospective Analysis

BACKGROUND

Posttraumatic stress disorder (PTSD) is associated with higher risk of certain chronic diseases, including ovarian cancer, but underlying mechanisms remain unclear. Although prior work has linked menopausal hormone therapy (MHT) use with elevated ovarian cancer risk, little research considers PTSD to likelihood of MHT use. We examined whether PTSD was prospectively associated with greater likelihood of initiating MHT use over 26 years.

METHODS

Using data from the Nurses' Health Study II, with trauma and PTSD (symptoms and onset date) assessed by screener in 2008 and MHT assessed via biennial survey (from 1989), we performed Cox proportional regression models with women contributing person-years from age 36 years. Relevant covariates were assessed at biennial surveys. We considered potential effect modification by race/ethnicity, age at baseline, and period (1989-2002 vs. 2003-2015).

RESULTS

Over follow-up, 22,352 of 43,025 women reported initiating MHT use. For example, compared with women with no trauma, the HR for initiating MHT was 1.18 for those with trauma/1-3 PTSD symptoms [95% confidence interval (CI), 1.13-1.22] and 1.31 for those with trauma/4-7 PTSD symptoms (95% CI, 1.25-1.36; P trend < 0.001), adjusting for sociodemographic factors. Associations were maintained when adjusting for reproductive factors and health conditions. We found evidence of effect modification by age at baseline.

CONCLUSIONS

Trauma and number of PTSD symptoms were associated with greater likelihood of initiating MHT use in a dose-response manner.

IMPACT

MHT may be a pathway linking PTSD to altered chronic disease risk. It is important to understand why women with PTSD initiate MHT use.

Current Understanding of the Etiology, Symptomatology, and Treatment Options in Premature Ovarian Insufficiency (POI)

Premature ovarian insufficiency (POI) occurs in at least 1% of all women and causes life-long health problems and psychological stress. Infertility caused by POI used to be considered absolute, with infertility treatment having little or no value. Generally, it has been thought that medicine can provide little service to these patients. The etiology of POI has been found to be genetic, chromosomal, and autoimmune. In addition, the increasing numbers of cancer survivors are candidates for iatrogenic POI, along with patients who have undergone ovarian surgery, especially laparoscopic surgery. Over 50 genes are known to be causally related to POI, and the disease course of some cases has been clarified, but in most cases, the genetic background remains unexplained, suggesting that more genes associated with the etiology of POI need to be discovered. Thus, in most cases, the genetic background of POI has not been clarified. Monosomy X is well known to manifest as Turner's syndrome and is associated with primary amenorrhea, but recent studies have shown that some women with numerical abnormalities of the X chromosome can have spontaneous menstruation up to their twenties and thirties, and some even conceive. Hormone replacement therapy (HRT) is recommended for women with POI from many perspectives. It alleviates vasomotor and genitourinary symptoms and prevents bone loss and cardiovascular disease. POI has been reported to reduce quality of life and life expectancy, and HRT may help improve both. Most of the problems that may occur with HRT in postmenopausal women do not apply to women with POI; thus, in POI, HRT should be considered physiological replacement of estrogen (+progesterone). This review describes some new approaches to infertility treatment in POI patients that may lead to new treatments for POI, along with the development of more sensitive markers of secondary/preantral follicles and genetic diagnosis.

Armodafinil for fatigue associated with menopause: an open-label trial

OBJECTIVE

This study aims to obtain preliminary data on the efficacy of armodafinil for improving menopause-related fatigue and quality of life.

METHODS

Women (aged 40-65 y) experiencing menopause-related fatigue received open-label armodafinil therapy (up to 150 mg/d) for 4 weeks. Changes from baseline in Brief Fatigue Inventory score and Menopause-Specific Quality of Life (MENQOL) physical domain score were examined using the Wilcoxon signed rank test. Exploratory analyses examined the effects of armodafinil on hot flashes, overall quality of life, insomnia, depression, anxiety, and perceived cognitive performance. After open-label treatment, participants were randomized to double-blind continuation of armodafinil versus placebo for 2 weeks to examine whether treatment discontinuation would precipitate symptom recurrence.

RESULTS

Of 29 eligible participants, 20 women (69.0%) completed the trial. During treatment with armodafinil (mean dose, 120 mg/d), median Brief Fatigue Inventory scores decreased by 57.7% from 5.2 (interquartile range [IQR], 4.6-6.2) to 2.2 (IQR, 1.1-4.4; P = 0.0002), and median MENQOL physical domain scores decreased by 51.3% from 3.9 (IQR, 2.3-4.8) to 1.9 (IQR, 1.3-2.7; P = 0.0001). Median hot flashes for 24 hours decreased by 48.3% from 2.9 (IQR, 1.1-4.6) to 1.5 (IQR, 0.4-2.4; P = 0.0005). Improvements in MENQOL total score (49%; P = 0.0001), cognitive function (59.2%; P = 0.0002), depressive symptoms (64.7%; P = 0.0006), insomnia (72.7%; P = 0.0012), and excessive sleepiness (57.1%; P = 0.0006) were noted. Randomized continuation (n = 10) or discontinuation (n = 10) did not indicate group differences. Armodafinil was well-tolerated; three women (12%) were withdrawn for adverse events.

CONCLUSIONS

These preliminary results suggest a therapeutic effect of armodafinil on fatigue affecting quality of life during menopause, and a potential benefit for other menopause-related symptoms.

Psychiatric disorders and menopause symptoms in Brazilian women

OBJECTIVE

This study investigated the association between minor psychiatric disorders and menopause symptoms and their associated factors.

METHODS

A cross-sectional study was conducted with 615 women aged 40 to 65 years treated in a public menopause and gynecological outpatient clinic in the South Region of Brazil. Minor psychiatric disorders were assessed using the Self-Reporting Questionnaire (SRQ-20) and menopause symptoms using the Menopause Rating Scale. Score for menopause symptoms was categorized into three levels of symptoms: mild, moderate, and severe. Multivariate analyses used ordinal logistic regression.

RESULTS

The prevalence of mild, moderate, and severe menopause symptoms was 34.1% (95% CI 30.3-37.9), 29.6% (95% CI 25.8-33.1), and 36.3% (95% CI 32.4-40.0), respectively. The overall prevalence of minor psychiatric disorders was 66.6% (95% CI 62.8-70.3). After adjustment, the odds ratio (OR) of the occurrence of menopause symptoms were approximately eight times higher in women relating minor psychiatric disorders compared with those without such disorders (OR = 7.76; 95% CI 5.27-11.44). The following factors were also associated with the menopause symptoms: women older than 50 years, living with a partner, lower educational level, smokers, larger number of pregnancies, obese, and those using psychotropic and/or postmenopause medication.

CONCLUSIONS

The minor psychiatric disorders exhibited strong association with the presence of menopause symptoms independently of sociodemographic, behavioral, and reproductive factors, and of use of psychotropic medication.

Complementary and Alternative Approaches to Menopause

Given the persistent confusion about the risks and benefits of hormone therapy since 2002 and the first publication from the Women's Health Initiative's primary findings, women and health care providers are increasingly motivated to find effective, nonhormonal approaches to treat menopause-related symptoms. Complementary and alternative medicine has grown increasingly popular in the last decade. A wide array of botanic medicines is offered as an alternative approach to hormone therapy for menopause, but data documenting efficacy and safety are limited. None of the available botanicals is as effective as hormone therapy in the management of vasomotor symptoms.

Examining the relationship between subjective sleep disturbance and menopause: a systematic review and meta-analysis

OBJECTIVE

The purpose of this study was to conduct a systematic review and meta-analysis of the relationship between menopausal stages and sleep disturbance reported using subjective methods. Secondary aims included examining the influence of culture/ethnicity on the relationship between menopausal stages and sleep disturbance.

METHODS

Multiple electronic databases were searched from the first available year to November 2013, and a manual search of the reference lists of review articles identified was also conducted. Twenty-four studies with a total of 63,542 midlife women were identified, coded, and analyzed.

RESULTS

The crude and adjusted odds of experiencing sleep disturbance were small but statistically significant for perimenopausal and postmenopausal women, using premenopause as the reference group. The ethnicity of the samples influenced effect sizes; Asian and white women both experienced an increased rate of sleep disturbance at the perimenopausal and postmenopausal stages compared with the premenopausal stage, whereas Hispanic women experienced no change in sleep disturbance across the menopausal transition.

CONCLUSIONS

The prevalence of sleep disturbance is higher in perimenopausal, postmenopausal, and surgical menopausal women than in premenopausal women. There is an independent relationship between menopausal stages and sleep disturbance beyond the effects of aging and other confounders, although the magnitude of the relationship is small. Culture, ethnicity, or both might affect the levels of sleep disturbance at various menopausal stages.

Factors associated with menopausal symptoms among middle-aged registered nurses in Beijing

OBJECTIVE

To determine factors related to menopause symptoms among middle-aged registered nurses in Beijing.

METHODS

Self-administered questionnaires that included closed-ended questions on many factors possibly related to menopausal symptoms were distributed to 2100 registered nurses aged 40-55 at 20 hospitals in Beijing, China.

RESULTS

Menopausal status was most associated with menopausal symptoms (p < 0.01), including hot flashes and sweating, paresthesiae, insomnia, arthralgia/myalgia, palpitations, skin formication and an unsatisfactory sexual life. The odds ratios (ORs) were highest for hot flashes and sweating. Upsetting events in the past year and being pessimistic were significantly inversely correlated with almost all the symptoms analyzed. Hot flashes and sweating (p < 0.01), paresthesiae (p < 0.01), unsatisfactory sexual life (p < 0.01), irritability (p < 0.05), depression or suspicion (p < 0.05) and dizziness (p < 0.05) were negatively correlated with the frequency of sexual activity.

CONCLUSION

Many factors may influence symptoms of the menopause. We found that menopausal status was most strongly associated with most menopausal symptoms, especially hot flashes and sweating. Psychosocial factors also played an important role. A higher frequency of sexual activity negatively correlated with most menopausal symptoms.

Factors that may influence the experience of hot flushes by healthy middle-aged women

BACKGROUND

Interest in menopausal symptoms in general and hot flushes (HFs) in particular has grown in recent years. This is mostly due to increased awareness and the vast impact these symptoms have on women's lives. Despite the high prevalence of women who experience HFs, a definitive etiology for HFs is yet to be found. Our objective was to review the current literature dealing with associated factors for experiencing HFs and to provide a synthesized overview on this common and often debilitating condition.

METHODS

We systematically searched the English-language literature in the PubMed database using relevant key words and included only those articles that contained information on associated factors for HFs in generally healthy midlife women.

RESULTS

Both conflicting scientific results between studies documenting factors that influence HFs and the lack of validated measuring tools make it difficult to truly pinpoint associated factors for HFs. Nonetheless, we identified the following clusters of associated factors: the menopausal stages, sex steroid hormones, other endocrine agents, genetic polymorphisms, race/ethnicity, body mass index (BMI) and obesity, mood disorders, smoking, soy isoflavones and phytoestrogens, alcohol consumption, and physical activity.

CONCLUSIONS

No single associated factor was consistently identified as having a major role in experiencing HFs. More resources should be directed to develop a unified study system along with multivariable analyses to get a better understanding of this condition, which often imposes a tremendous social and personal toll on the women who experience it.

A health survey of Beijing middle-aged registered nurses during menopause

OBJECTIVE

To collect health information of Beijing middle-aged registered nurses during menopause.

METHODS

We distributed self-administered questionnaires to 2100 registered nurses aged 40-55 from 20 hospitals in Beijing. The objects of interest were selected by cluster sampling.

RESULTS

A total of 1686 questionnaires met the criteria and were used for statistical analysis. The average natural menopause age was 48.68 ± 3.61 years old. We determined that 37.83% of the objects had modified Kupperman Menopausal Index (KMI) scores ≥ 15. The top three menopause symptoms were fatigue (82.72%), irritability (70.24%), and arthralgia/myalgia (69.55%); hot flashes ranked eleventh (30.83%).

CONCLUSIONS

A total of 37.83% Beijing middle-aged registered nurses had menopause syndrome, and the top three symptoms were fatigue, irritability, and arthralgia/myalgia.

Efficacy of porcine placental extract on climacteric symptoms in peri- and postmenopausal women

OBJECTIVES

Injections of human placental extract have long been used to treat menopausal symptoms. Recently, porcine placental extract (PPE), an oral supplement, has been developed for this purpose. The aim of this study was to assess whether PPE has an impact on climacteric symptoms in perimenopausal and postmenopausal women.

METHODS

Seventy-six women with climacteric symptoms were enrolled into this open-label, randomized, controlled study. The control group (n = 38) underwent 24 weeks of open treatment with Toki-shakuyaku-san (TJ23), an oral herbal remedy used to alleviate climacteric symptoms. The PPE group (n = 38) received three capsules of PPE/day orally for the initial 12 weeks and six capsules/day for the next 12 weeks. Climacteric symptoms were evaluated in both groups using the Simplified Menopausal Index (SMI) score, Zung's Self-Rating Depression Scale (ZSDS) and the Spielberger State-Trait Anxiety Inventory (STAI) before commencing treatment, after 12 weeks of treatment and on completion of treatment.

RESULTS

Treatment with PPE was significantly (p < 0.01) more effective in reducing the SMI, ZSDS and STAI measures at 12 and 24 weeks than TJ23 treatment alone. Treatment with PPE was also significantly effective (p < 0.01) in reducing the subscale scores of the SMI for items such as hot flushes, insomnia, irritability, depression, fatigue and joint pain. PPE treatment had no significant adverse effects.

CONCLUSION

Oral PPE treatment is another possible option for treating perimenopausal and postmenopausal women with climacteric symptoms.

Perceived control over menopausal hot flushes in mid-aged women

BACKGROUND

Hot flushes (HFs) and night sweats are frequent complaints among both peri- and postmenopausal women. Perceived control of this complaint may vary from one population to another.

OBJECTIVE

To assess perceived control over menopausal HFs and determinant factors among mid-aged Ecuadorian women.

METHODS

In this cross-sectional study healthy women aged 40-59 years, seeking healthcare centres of eight main cities of Ecuador with more than 100,000 inhabitants, were assessed with the Menopause Rating Scale (MRS) and those presenting HFs were requested to fill out the Perceived Control Index (PCI) and a questionnaire containing socio-demographic data (female and partner).

RESULTS

A total of 1154 women participated in this study of which 56% presented HFs (n = 646). According to the MRS, 29.1% and 9.1% of these HFs were graded as severe and very severe, respectively. Mean age of women presenting HFs was 49.5 +/- 5.2 years, with 51.9% having 12 years or less of education, 61.5% being postmenopausal and 47.2% living in high altitude. At the moment of the survey 13.9% were on hormone therapy, 12.8% on phytoestrogens and 7.1% on psychotropic drugs. There was a significant decreasing trend for PCI scores (total and difficulty in control items) from one menopausal stage to the next, with no differences observed for time since menopause onset. Despite this, logistic regression analysis determined that HF severity, as determined with the MRS, was the only single predictive factor related to lower HF perceived control (total PCI score <38) (OR: 1.83 CI 95% [1.15-2.90], p < 0.01).

CONCLUSION

As determined with the PCI, HF severity was related to a lower perceived control among mid-aged women.

Self-assessed health and menopausal symptoms among 50-year-old Japanese women: cross-sectional surveys in Northern Kawasaki in 1998 and 2008

OBJECTIVE

The aim of this study was to determine whether self-assessed health changed over the last decade in association with menopausal symptoms among community-dwelling Japanese women.

METHODS

Cross-sectional surveys of 50-year-old women living in Northern Kawasaki were conducted in 1998 (n = 1,492) and 2008 (n = 1,274). Data obtained from a questionnaire were self-assessed health, menopause awareness, 1-year recall of 10 subjective symptoms (Simplified Menopausal Index), and sociodemographic, lifestyle, and health characteristics. The prevalence of poor self-assessed health, menopause awareness, and subjective symptoms was compared between the surveys.

RESULTS

The percentage of premenopausal women increased from 51.7% in the 1998 survey to 64.8% in the 2008 survey (P < 0.001). The prevalence of menopause awareness decreased from 36.8% in the 1998 survey to 31.7% in the 2008 survey (P = 0.006). The prevalence of poor self-assessed health decreased from 13.9% in the 1998 survey to 10.8% in the 2008 survey (P = 0.013). Multiple logistic regression analysis showed that participants of the 2008 survey had a significantly lower risk for having poor self-assessed health than did participants of the 1998 survey. Menopause awareness, comorbidity, and body mass index of 18.5 kg/m2 or lower or 25.0 kg/m2 or greater were significantly associated with increased risk for having poor self-assessed health. The impact of menopause awareness on self-assessed health was 2.2 to 2.4 times greater in participants without comorbidity than in those with comorbidity.

CONCLUSIONS

There was a significant improvement in self-assessed health in parallel with a significant downward secular trend in the prevalence of menopause awareness among community-dwelling Japanese women. Women who felt themselves affected by menopause tended to perceive their own health as poor.