Effects of progressive muscle relaxation, guided imagery and deep diaphragmatic breathing on quality of life in elderly with breast or prostate cancer

The effect of diaphragmatic breathing on nausea, vomiting and functional status among breast cancer patients undergoing chemotherapy

PURPOSE

To examine the effect of diaphragmatic breathing (DB) on nausea, vomiting, and functional status among breast cancer patients undergoing chemotherapy in Indonesia.

METHODS

A quasi experimental study with non-equivalent pretest and posttest control group was conducted. A total of forty-eight breast cancer patients (24 DB and 24 control participants) undergoing chemotherapy participated in this study selected conveniently. DB intervention was performed to the intervention group after chemotherapy cycle twice a day for six days, meanwhile the control group received usual care. A set of questionnaires was used to collect data consisting of Patient Information Form, Rhodes Index Nausea, Vomiting and Retching (RINVR) and The Functional Living Index-Cancer (FLI-C). Data were analyzed and interpreted using Generalized Linear Model, Wilcoxon Test, Paired T Test and Mann-Whitney U test.

RESULTS

There were significant changes in RINVR mean scores for the intervention group that started on the third day after chemotherapy (p = 0.000); meanwhile, the significant changes in RINVR mean scores for the control group began on the fifth day (p = 0.000). The total score of FLI-C was significantly different between the intervention and control groups (p = 0.000).

CONCLUSION

DB could decrease nausea and vomiting, and increase functional status of breast cancer patients undergoing chemotherapy. It can be promoted as a useful low-cost self-management approach and an additional and complementary therapy to manage chemotherapy-related nausea and vomiting.

Factors Related to Health Literacy Among the Iranian Population: A Scoping Review

Background

The identification of the determinants of health literacy is an essential prerequisite for developing health literacy promotion programs. While these factors have been reported in previous studies, there is a lack of a comprehensive review specifically focused on the Iranian population. Therefore, this review aimed to identify the factors related to health literacy in Iran.

Methods

This scoping review used the Arksey and O'Malley methodological framework and the Joanna Briggs Institute framework. A search was performed in English-language databases-Web of Science, Scopus, and PubMed-using the MeSH keyword of "health literacy," and in Persian-language databases-Magirean and SID-using the related keywords. A narrative synthesis was conducted to describe all included studies' characteristics and explore factors associated with health literacy.

Results

A total of 76 studies were included. Based on the results of the study, related factors included personal factors-including sex, age, education level, field of study, parents' education level, marital status, occupation, work experience, employment status, ethnicity, income, socioeconomic status, medical history, duration of disease, addiction, number of children, media literacy, information literacy, computer literacy, and self-efficacy-situational factors-including use of the internet, use of social networks, social support, source of information, and participation in health education classes-and societal and environmental factors-including place of residence and type of insurance.

Conclusion

Modifiable factors identified in this study were self-efficacy, social support, information sources, media literacy, information literacy, computer literacy, internet or social networks, and participation in health education classes. Planners can consider these factors when developing interventions to promote health literacy.

Guided imagery for anxiety disorder: Therapeutic efficacy and changes in quality of life

Background

Patients with anxiety disorder were showing severity of anxiety symptoms as well as poor quality of life. Guided imagery (GI) provides immediate relaxation, and improves the severity of anxiety symptoms and the quality of life of patients with anxiety disorder. Anxiety is a basic emotion that is required as a motivation for everyday work of life. Anxiety presents a complex cognitive, affective, physiological, and behavioral response that is related to future harm (real or perceived).

Aim

To study the efficacy of GI intervention on patients with anxiety disorder and their quality of life.

Materials and Methods

This longitudinal, interventional study was done in a state institute of mental health, psychiatric unit on 20 patients (outpatients) with anxiety disorder, diagnosed according to diagnostic criteria of research ICD-10 DCR. Patients were assessed using a sociodemographic and clinical data sheet, Hamilton anxiety scale, and World Health Organization QOL instrument, short-form (WHOQOL-BREF), Hindi version.

Results

Patients with anxiety disorder in the experimental group improved as compared with the control group significantly. The mean QOL-BREF score was also improved after intervention in the intervention group.

Conclusion

GI intervention helps reduce the severity of anxiety symptoms and improve the quality of life in patients with anxiety disorder.

Imagen guiada para la calidad de vida de mujeres con cáncer de cuello uterino: estudio cuasi-experimental

Introducción: Las terapias de mente y cuerpo, como la relajación de imágenes guiadas, que se encuentran entre las principales prácticas integradoras utilizadas por los pacientes con cáncer, son esenciales para mantener un equilibrio saludable entre la activación simpática y parasimpática en el cerebro. Objetivo: Evaluar el efecto de la relajación de imagen guiada, con el uso de realidad virtual, sobre la calidad de vida relacionada con la salud de mujeres con cáncer de cuello uterino en tratamiento concomitante con quimiorradioterapia. Materiales y Método: Estudio cuasi-experimental, realizado en un hospital de referencia de oncología en el sur de Brasil, de octubre de 2019 a enero de 2021. Participaron 52 mujeres, divididas en dos grupos, experimental (intervención de relajación guiada por imaginería con realidad virtual), y control (rutina por defecto). El instrumento funcional se utilizó para evaluar las puntuaciones de calidad de vida relacionada con la salud. Evaluación de Cáncer terapia cuello uterino cáncer, aplicado antes, 14 días después y al final del tratamiento, en aproximadamente 35 días. Los análisis se realizaron utilizando el modelo lineal generalizado mixto, con una matriz de covarianza autorregresiva de orden 1, y la significación fue confirmada por la prueba de Sidak. Resultados: hubo una diferencia estadísticamente significativa para el grupo experimental en la calidad de vida física (p = 0,02), funcional (p = 0,00), síntomas específicos del cáncer de cuello uterino y efectos del tratamiento (p = 0,03) y en general (p = 0,02).). Conclusión: La Relajación por Imagen Guiada contribuyó a mejorar la Calidad de Vida Relacionada con la Salud de las pacientes con cáncer de cuello uterino durante el tratamiento con quimiorradioterapia. Como citar este artículo: Santana, Edenice de Oliveira; Marcondes, Larissa; Silva, Luana Aparecida Alves da; Sawada, Namie Okino; Rosa, Luciana Martins da; Kalinke, Luciana Puchalski.  Imagem guiada para qualidade de vida de mulheres com câncer cervical: estudo quase experimental. Revista Cuidarte. 2023;14(1):e2358. http://dx.doi.org/10.15649/cuidarte.2358

Caregiving burden and social support in family caregivers of patients with cancer: A cross-sectional study

Introduction

Providing care for patients by family caregivers causes in several consequences known as “Caregiving Burden”, which affects the caregiver's health and the whole family process, considered in holistic healthcare/nursing. This study aimed to evaluate the caregiving burden and social support in family caregivers of patients with cancer and their influencing factors in a local area in Iran.

Methods

In this cross-sectional study, 190 family members of patients with cancer were studied through convenient sampling method. Data were collected using demographic data sheet enriched with Karnofsky Performance Status Scale and Katz Index of Independence in Activities of Daily Living (ADL), and Zarit Burden Inventory and Medical Outcomes Social Support Survey questionnaires.

Results

The results indicated intermediate performance status and moderate independence in ADL in patients. The mean score of caregiving burden was 43.95 ± 17.48 which indicates moderate to severe burden. The average social support in the caregivers was 60.25 ± 23.81% which shows above the average social support. Both performance status and dependence in ADL of patient had statistically significant effect on the caregiving burden in caregivers. Also a statistically significant negative relationship was observed between caregiving burden and social support in primary family caregivers of patients with cancer.

Discussion

Considering the increasing importance of primary care provided by families, developing strategies for providing caregiver's needs through family care in cancer nursing is essential. So supporting caregivers through family nursing in holistic healthcare by providing social support, can play a significant role in reducing caregiving burden in healthcare services considering the qualified holistic healthcare/nursing.

Relaxation and related therapies for people with multiple sclerosis (MS): A systematic review

OBJECTIVE

To establish the effectiveness of relaxation and related therapies in treating Multiple Sclerosis related symptoms and sequelae.

DATA SOURCES

PsycINFO, PubMed, Embase, CINAHL, ProQuest Dissertations and Theses Global databases were searched.

METHODS

We included studies from database inception until 31 December 2021 involving adult participants diagnosed with multiple sclerosis or disseminated sclerosis, which featured quantitative data regarding the impact of relaxation interventions on multiple sclerosis-related symptoms and sequelae. Studies which examined multi-modal therapies - relaxation delivered in combination with non-relaxation interventions - were excluded. Risk of bias was assessed using the Revised Risk of Bias tool for randomised trials - ROB2, Risk of Bias in Non-Randomised Studies of Interventions ROBINS-I), and within and between-group effects were calculated (Hedges' g).

RESULTS

Twenty-eight studies met inclusion criteria. Twenty-three of these were randomised controlled trials, with 1246 total participants. This review reports on this data, with non-randomised study data reported in supplemental material. Post -intervention relaxation was associated with medium to large effect-size improvement for depression, anxiety, stress and fatigue. The effects of relaxation were superior to wait-list or no treatment control conditions; however, comparisons with established psychological or physical therapies were mixed. Individual studies reported sustained effects (≤ 6 months) with relaxation for stress, pain and quality of life. Most studies were rated as having a high/serious risk of bias.

CONCLUSION

There is emerging evidence that relaxation therapies can improve outcomes for persons with multiple sclerosis. Given the high risk of bias found for included studies, stronger conclusions cannot be drawn.

Complementary and alternative therapies in multiple sclerosis: a systematic literature classification and analysis

INTRODUCTION AND AIM

Multiple Sclerosis (MS) is a disease determined by inflammatory demyelination and neurodegeneration in the Central Nervous System (CNS). Despite the extensive utilization of Complementary and Alternative Medicine (CAM) in MS, there is a need to have comprehensive evidence regarding their application in the management of MS symptoms. This manuscript is a Systematic Literature Review and classification (SLR) of CAM therapies for the management of MS symptoms based on the International Classification of Functioning Disability and Health (ICF) model.

METHOD

Studies published between 1990 and 2020 IN PubMed, Science Direct, Scopus, Pro-Quest, and Google Scholar using CAM therapies for the management of MS symptoms were analyzed.

RESULTS

Thirty-one papers on the subject were analyzed and classified. The findings of this review clearly show that mindfulness, yoga, and reflexology were frequently used for managing MS symptoms. Moreover, most of the papers used mindfulness and yoga as a CAM therapy for the management of MS symptoms, which mostly devoted to mental functions such as fatigue, depression, cognition, neuromuscular functions such as gait, muscle strength, and spasticity, and sensory function such as balance, in addition to, reflexology is vastly used to management of mental functions of MS patients.

CONCLUSION

Evidence suggested that CAM therapies in patients with MS have the potential to target and enhancement numerous elements outlined in the ICF model. Although the use of CAM therapies in MS symptom management is promising, there is a need for strict clinical trials. Future research direction should concentrate on methodologically powerful studies to find out the potential efficacy of CAM intervention.

The Effectiveness of Complementary Therapy as Mind-Body Practice on Quality of Life among Cancer Survivors: A Quasi-Experimental Study

Objective:

This study aimed to investigate quality of life (QOL) improvement in long-term cancer survivors using complementary therapy (CT) as mind–body practice.

Methods:

A quasi-experimental study including intervention and control groups was conducted. Participants in the intervention group engaged in CTs, including music therapy, progressive muscle relaxation, and deep-breathing exercises for 8 weeks at home. QOL was evaluated in both the groups using Short Form-8 (SF-8) questionnaire before the experiment and at 4 and 8 weeks after starting the experiment. To examine QOL, we compared SF-8 subscale scores, the physical and mental component summaries of QOL.

Results:

Cancer survivors were assigned to the intervention and control groups, comprising 69 and 59 individuals. There were no significant differences in QOL between the two groups with low scores, but there was a significant difference in the mental aspect of QOL in 4 weeks, indicating that the intervention group was lower than the control group. Meanwhile, the intervention group tended to experience increased changes in the mental aspect of QOL in 8 weeks compared to 4 weeks, although there was no significant difference.

Conclusions:

CT did not exhibit an effect on QOL among cancer survivors, especially in 4 weeks. This might have been due to sample size, participants' potential low compliance resulting in an inability to confirm whether the CTs were performed accurately and continuously, and consideration of what CT suited them. Meanwhile, CT may require a longer time to increase QOL. We recommend further studies to address these factors when conducting CT as mind–body practice.

Progressive Muscle Relaxation and Guided Imagery in Breast Cancer: A Systematic Review and Meta-analysis of Randomised Controlled Trials

Breast cancer affects the mental well-being of patients who may need psychological support. The combined practice of progressive muscle relaxation (PMR) and guided imagery (GI) is known to improve psychological health. Its effect has been studied in patients with breast cancer. We need to systematically review and analyse the available data to outline its role in various stages of disease management. We wanted to evaluate the effect of the combined practice of PMR and GI on stress, anxiety, depression and mood. We also wanted to study the impact on quality of life and chemotherapy-related adverse effects. A systematic search and evaluation of the literature was performed. Five randomised controlled trials were selected for data extraction and construction of forest plots. The intervention was effective for stress and anxiety. It positively improved the quality of life but saw no significant improvement in chemotherapy-related adverse effects.

Guided imagery relaxation in quality of life of patients undergoing hematopoietic stem cell transplantation: a quasi-experiment

OBJECTIVE

The aim of this study was to evaluate the effects of the relaxation technique with guided imagery by means of virtual reality on health-related quality of life in patients undergoing hematopoietic stem cell transplantation.

METHODS

A quasi-experiment conducted in a Bone Marrow Transplantation Service of a public hospital in southern Brazil. From October 2019 to October 2020, forty-two adult participants who underwent transplantation were included, 35 in the intervention group and seven in the control group. A guided imagery intervention, with audio guiding the relaxation associated with nature images in 360º, was performed during the hospitalization period. Data were collected on the first day of hospitalization, on the transplantation day, during the neutropenia stage, and at pre-hospital discharge. The Functional Assessment of Cancer Therapy-Bone Marrow Transplantation (FACT-BMT), Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue) and Functional Assessment of Cancer Therapy-Neutropenia (FACT-N) were used to assess health-related quality of life, fatigue and neutropenia. Data were analyzed using the Generalized Linear Mixed Model for the evolution of the health-related quality of life assessments over time, considering the groups and stages. Pearson's correlation coefficient was adopted for the correlation analyses.

RESULTS

Allogeneic transplantation was predominant: 28 (80%) in the intervention group and 5 (71.43%) in the control group. There were improvements in the health-related quality of life scores, although not significant. A significant difference was found among the stages (p <0.050) and a significant positive correlation (p <0.000) among the variables on general quality of life, additional concerns, fatigue and neutropenia in all stages.

CONCLUSION

Patients undergoing hematopoietic stem cell transplantation suffer changes in their quality of life. Interventions based on integrative practices emerge as an option to minimize them. <br />.

Effectiveness of Progressive Muscle Relaxation, Deep Breathing, and Guided Imagery in Promoting Psychological and Physiological States of Relaxation

Research suggests that multiple forms of relaxation training (e.g., progressive muscle relaxation, meditation, breathing exercises, visualization, and autogenics) can help individuals reduce stress, enhance relaxation states, and improve overall well-being. We examined three different, commonly used approaches to stress relaxation-progressive muscle relaxation, deep breathing, and guided imagery-and evaluated them in a head-to-head comparison against each other and a control condition. Sixty healthy undergraduate participants were randomized to one of the four conditions and completed 20 minutes of progressive muscle relaxation, deep breathing, or guided imagery training that was delivered by recorded audio instruction. Baseline and follow-up assessment of psychological relaxation states were completed. Physiological relaxation was also assessed continuously using measures of electrodermal activity and heart rate. Results showed that progressive muscle relaxation, deep breathing, and guided imagery all increased the state of relaxation for participants in those groups, compared to participants in the control group. In each case, the increase was statistically significant and although the groups did not differ on relaxation before training, all groups were significantly higher on relaxation after training, as compared to the control group. Progressive muscle relaxation and guided imagery showed an immediate linear trend toward physiological relaxation, compared to the control group, and the deep breathing group showed an immediate increase in physiological arousal followed quickly by a return to initial levels. Our results lend support to the body of research showing that stress relaxation training can be effective in improving relaxation states at both the psychological and physiological level. Future research could examine stress relaxation techniques in a similar manner using designs where multiple techniques can be compared in the same samples.

The effect of storytelling on fear in school-age children during hospitalization

Hospitalization places children in conditions that may nurture fears of new surroundings, strangers, and unknown actions. Storytelling can be administered as a distraction from the fears that a child experiences during treatment. This study aims to determine the effectiveness of storytelling against fear due to hospitalization in school-age children admitted to the hospital. This study used a quantitative approach with a pre-experimental design and the method used was nonequivalent control group pretest-posttest design. Subjects in this study consisted of two groups namely the intervention and the control groups. The total number of respondents was n=32 and located at the Maternity and Children Hospital in Indonesia. Bivariate analysis showed that storytelling intervention had a significant relationship with the fear of hospitalization among the hospitalized school-age children (p-value=0.001< 0.05). Also, there was a significant difference between the fear score in the intervention and the control groups (p-value=0.001<). Therefore, applying storytelling in the nursing intervention of pediatric patients in hospitals can be recommended to minimize the fear in children.

The Sum of Fears in Cancer Patients Inside the Context of the COVID-19

The pandemic resulting from COVID-19 has led to the collapse of the health system in dozens of countries. Parallel to clinical risk, the appearance or intensification of psychiatric symptoms has also been documented. The identification of groups at risk is essential for the establishment of preventive and therapeutic strategies. Cancer patients appear to be especially vulnerable both from a clinical and psychiatric perspective. Problems related to contamination and the cancer treatments themselves are intertwined, causing a sum of patients' fears to arise, which can cause mental effects. This study aims to review and investigate the impact of COVID-19 on the mental health of cancer patients and indicate possible support strategies.

Randomized Feasibility Study of Meditative Practices in Hospitalized Cancer Patients

Introduction: There is limited research regarding the benefits of mind-body practices such as meditation in hospitalized patients with an active diagnosis of any cancer type. Methods: We conducted a prospective, randomized, clinical trial (NCT03445572) comparing 2 meditative practices-Isha Kriya (IK) and meditative slow breathing (MSB)-versus wait-list controls in hospitalized cancer patients. Our aim was to determine the feasibility of meditation practice in cancer inpatients. Feasibility was defined as recruitment of more than 50% of the eligible patients approached and at least 60% of the patients having meditated at least 4 days by day 7. Acceptability was assessed on day 7 as a positive response on at least 2 questions on the modified Global Symptom Evaluation (GSE) scale. Results: Forty patients (39% of the eligible patients approached) consented to participate in the study and were randomly assigned to the MSB (n = 13), IK (n = 14), or wait-list (n = 13) groups. Of the 27 patients assigned to receive MSB and IK meditations, day 7 data were available for 18 patients. Fifteen of the 18 patients meditated at least once in the first 7 days, and most (12/15) responded positively on the GSE. Conclusion: Both IK and MSB meditations were acceptable among the hospitalized cancer patients. Feasibility for enrollment and practice was likely not achieved due to limited uninterrupted time for daily meditation, high levels of morbidity in some participants, and limited research staff support. Shorter term outcomes should be explored in future meditation studies involving hospitalized cancer patients.

Postpartum depression symptoms in survey-based research: a structural equation analysis

BACKGROUND

Since the last decade, postpartum depression (PPD) has been recognized as a significant public health problem, and several factors have been linked to PPD. Mothers at risk are rarely undetected and underdiagnosed. Our study aims to determine the factors leading to symptoms of depression using Structural Equation Modeling (SEM) analysis. In this research, we introduced a new framework for postpartum depression modeling for women.

METHODS

We structured the model of this research to take into consideration the Malaysian culture in particular. A total of 387 postpartum women have completed the questionnaire. The symptoms of postpartum depression were examined using the Edinburgh Postnatal Depression Scale (EPDS), and they act as a dependent variable in this research model.

RESULTS

Four hundred fifty mothers were invited to participate in this research. 86% of the total distributed questionnaire received feedback. The majority of 79.6% of respondents were having depression symptoms. The highest coefficients of factor loading analysis obtained in every latent variable indicator were income (β = 0.77), screen time (β = 0.83), chips (β = 0.85), and anxiety (β = 0.88). Lifestyle, unhealthy food, and BMI variables were directly affected by the dependent variable. Based on the output, respondents with a high level of depression symptoms tended to consume more unhealthy food and had a high level of body mass indexes (BMI). The highest significant impact on depression level among postpartum women was unhealthy food consumption. Based on our model, the findings indicated that 76% of the variances stemmed from a variety of factors: socio-demographics, lifestyle, healthy food, unhealthy food, and BMI. The strength of the exogenous and endogenous variables in this research framework is strong.

CONCLUSION

The prevalence of postpartum women with depression symptoms in this study is considerably high. It is, therefore, imperative that postpartum women seek medical help to prevent postpartum depressive symptoms from worsening.

Mindfulness and relaxation: the effects of a program with university hospital workers

Abstract Our study compared the effects of mindfulness and relaxation interventions on stress, quality of life, resilience, and mindfulness levels. A total of 29 workers, recruited at a university hospital in the northeastern region of Brazil and distributed in two groups: Mindfulness (89.5% female, age mean 37.5 ± 6.23 years old); and Relaxation (90.0% female, age mean 34.2 ± 8.66). After eight weeks of daily mindfulness or relaxation practices, both groups significantly reduced the perceived stress and stress at work, and increased their mindfulness and resilience levels, as well as the physical and psychological quality of life domains. Our results suggest that both interventions may be effective in the organizational environment, assisting in health promotion and increasing the ability of individuals to recover from an adversity (resilience).

Effectiveness of Yoga on Quality of Life of Breast Cancer Patients Undergoing Chemotherapy: A Randomized Clinical Controlled Study

Background:

Cancer of breast is most common cancer among women in India and vast majority of countries worldwide. While undergoing chemotherapy for carcinoma management, women encounter side effects, which affects their quality of life (QOL). A randomized controlled study with quantitative research approach and time series design was conducted, to study the effectiveness of yoga on QOL of breast cancer patients undergoing chemotherapy.

Methodology:

One hundred breast cancer patients scheduled for 3-weekly, day-care adjuvant chemotherapy (CEF regimen) were enrolled with consecutive sampling technique, into control (n = 52) and experiment (n = 48) groups, by concealed randomization following written informed consent. Baseline data on QOL were collected before first-cycle chemotherapy using the European Organization for Research and Treatment of Cancer QLQ C30. Patients in the experimental group were taught diaphragmatic breathing techniques, systematic relaxation, and alternate nostril breathing, and Joints and Glands neck and shoulder exercises were instructed to practice twice daily at home. They were supervised in practicing these techniques while they received second, third, fourth, fifth, and sixth cycles of chemotherapy in the day-care facility. Participants in the control group received only routine care. All participants received standard post chemotherapy prescription. Data on QOL were collected from all patients during the second, third, fourth, fifth, and sixth cycles of chemotherapy.

Results:

The analysis revealed that at the baseline (first chemotherapy cycle), breast cancer patients in control and experimental groups were homogeneous in terms of their sociodemographic and clinical variables and QOL score. Yoga practices were effective in improving the QOL of breast cancer patients in the experimental group in the areas of global health status, physical function, role function, and emotional function and decreasing the symptoms of fatigue, insomnia, loss of appetite, and constipation, during the period of chemotherapy.

Conclusion:

Yoga practices comprising of relaxation techniques reduce many side effects and improve the QOL of women undergoing chemotherapy for breast cancer.

Effects of Diaphragmatic Breathing on Health: A Narrative Review

Background: Breathing is an essential part of life. Diaphragmatic breathing (DB) is slow and deep breathing that affects the brain and the cardiovascular, respiratory, and gastrointestinal systems through the modulation of autonomic nervous functions. However, the effects of DB on human health need to be further investigated. Methods: The author conducted a PubMed search regarding the current evidence of the effect of DB on health. Results: This review consists of a total of 10 systematic reviews and 15 randomized controlled trials (RCTs). DB appears to be effective for improving the exercise capacity and respiratory function in patients with chronic obstructive pulmonary disease (COPD). Although the effect of DB on the quality of life (QoL) of patients with asthma needs to be investigated, it may also help in reducing stress; treating eating disorders, chronic functional constipation, hypertension, migraine, and anxiety; and improving the QoL of patients with cancer and gastroesophageal reflux disease (GERD) and the cardiorespiratory fitness of patients with heart failure. Conclusions: Based on this narrative review, the exact usefulness of DB in clinical practice is unclear due to the poor quality of studies. However, it may be a feasible and practical treatment method for various disorders.

Prenatal exposure to ambient air pollution and adverse pregnancy outcomes in Ahvaz, Iran: a generalized additive model

OBJECTIVE

There is some evidence about the short-term effects of air pollutants on adverse pregnancy outcomes. The aim of this study was to determine the association between air pollutants and spontaneous abortion, stillbirth, gestational hypertension, preeclampsia, gestational diabetes and macrosomia in Ahvaz, which is one of the most polluted cities in the Middle East.

METHODS

Data on adverse pregnancy outcomes and air pollutants including ozone (O₃), nitric oxide (NO), nitrogen dioxide (NO₂), sulfur dioxide (SO₂), carbon monoxide (CO), particles with a diameter of less than 10 µm (PM₁₀) and particles with a diameter less than 2.5 µm (PM_2.5) were inquired from the Health Department of Ahvaz Jundishapur University of Medical Sciences and the Environmental Protection Agency of Khuzestan Province for the years 2008-2018. A time series analysis using the generalized additive model (GAM) with up to 6-day lags was used.

RESULTS

The results showed that the SO₂ pollutant on 0, 1, 3, 4, and 6-day lags and PM₁₀ on lag 0 had direct and significant associations with spontaneous abortion. NO, NO₂ and CO on 0-6-day lags, and O₃ on 6-day lags showed direct and significant associations with preeclampsia. NO and NO₂ pollutants showed significant and direct associations with gestational diabetes, during 0- and 6-day lags. NO on 0-, 3- and 4-day lags, CO in all 0-6-day lags and PM_2.5 on 1-, 3-, 5-, and 6-day lags showed direct and significant associations with macrosomia. None of the pollutants showed significant associations with stillbirth or gestational hypertension.

CONCLUSIONS

The results of this study suggest that some air pollutants are associated with spontaneous abortion, preeclampsia, gestational diabetes and macrosomia. This study further emphasizes the need to control ambient air pollution.

Tai Chi and Qigong for cancer-related symptoms and quality of life: a systematic review and meta-analysis

PURPOSE

This study aims to summarize and critically evaluate the effects of Tai Chi and Qigong (TCQ) mind-body exercises on symptoms and quality of life (QOL) in cancer survivors.

METHODS

A systematic search in four electronic databases targeted randomized and non-randomized clinical studies evaluating TCQ for fatigue, sleep difficulty, depression, pain, and QOL in cancer patients, published through August 2016. Meta-analysis was used to estimate effect sizes (ES, Hedges' g) and publication bias for randomized controlled trials (RCTs). Methodological bias in RCTs was assessed.

RESULTS

Our search identified 22 studies, including 15 RCTs that evaluated 1283 participants in total, 75% women. RCTs evaluated breast (n = 7), prostate (n = 2), lymphoma (n = 1), lung (n = 1), or combined (n = 4) cancers. RCT comparison groups included active intervention (n = 7), usual care (n = 5), or both (n = 3). Duration of TCQ training ranged from 3 to 12 weeks. Methodological bias was low in 12 studies and high in 3 studies. TCQ was associated with significant improvement in fatigue (ES = - 0.53, p < 0.001), sleep difficulty (ES = - 0.49, p = 0.018), depression (ES = - 0.27, p = 0.001), and overall QOL (ES = 0.33, p = 0.004); a statistically non-significant trend was observed for pain (ES = - 0.38, p = 0.136). Random effects models were used for meta-analysis based on Q test and I ² criteria. Funnel plots suggest some degree of publication bias. Findings in non-randomized studies largely paralleled meta-analysis results.

CONCLUSIONS

Larger and methodologically sound trials with longer follow-up periods and appropriate comparison groups are needed before definitive conclusions can be drawn, and cancer- and symptom-specific recommendations can be made.

IMPLICATIONS FOR CANCER SURVIVORS

TCQ shows promise in addressing cancer-related symptoms and QOL in cancer survivors.