Factors associated with anaemia among pregnant women in Rwanda: an analysis of the Rwanda demographic and health survey of 2020.

BACKGROUND: Anaemia in pregnancy is associated with several adverse outcomes for mothers and newborns, as well as their families. In this study, we assessed the prevalence of anaemia and the associated factors among pregnant women in Rwanda. METHODS: Secondary data from the 2020 Rwanda Demographic and Health Survey (RDHS) was used. Multistage stratified sampling was used to select 435 pregnant women included in the study. Anaemia among pregnant women was defined as a haemoglobin value < 11 g/dL. Multivariable logistic regression was used to assess the associated factors with anaemia in pregnancy, using SPSS (version 26). RESULTS: Of the 435 pregnant women, 24.6% (95%CI: 21.1-29.3) were anaemic (1 in 4 pregnant women). Not working (AOR = 2.45; 95%CI: 1.14-5.26), being unmarried (AOR = 1.23; 95%CI: 1.24-3.57), low wealth index (AOR = 9.19; 95%CI: 1.64-51.56), having difficulty accessing a nearby health facility (AOR = 5.40; 95%CI: 2.21-13.23), and normal body mass index (AOR = 3.33; 95%CI: 1.46-7.59) were associated with higher odds of being anaemic. However, not taking iron supplements (AOR = 0.16; 95% CI: 0.04-0.67), having no exposure to television (AOR = 0.35; 95%CI: 0.14-0.91), being from the southern region (AOR = 0.14; 95% CI: 0.03-0.66), and low husband/partner's education (AOR = 0.08; 95% CI: 0.01-0.59) were associated with lower odds of being anaemic. CONCLUSIONS: The study findings indicate a high prevalence of anaemia in pregnancy, which was associated with several socio-demographics. There is a need for setting up mobile clinics and health facilities in hard-to-reach areas for easy accessibility to early anaemia screening services. Conducting mass screening for anaemia targeting pregnant women who are not working, the unmarried, and those with a low wealth index would also be beneficial. The intake of locally available iron rich foods and/ or bio-fortified foods is also recommended.

Women empowerment indices and utilization of health facilities during childbirth: evidence from the 2019 Sierra Leone demographic health survey.

BACKGROUND: Women empowerment is recognized as a potential enabling factor to the utilization of health facilities during childbirth. However, the association between women empowerment and utilization of health facilities is poorly studied, especially in counties with high maternal mortality. Therefore, we investigated the association between women empowerment indices and the utilization of health facilities during childbirth in Sierra Leone. METHODS: We analyzed secondary data from the 2019 Sierra Leone Demographic and Health Survey (SLDHS). We included 5,997 married women who had given birth in the five years before the survey, and had been sampled for the women empowerment questionnaire. The study employed the gender roles framework developed by the Harvard Institute for International Development in the selection and classification of women empowerment indices, which include influencing, resource and decision-making factors. We conducted logistic regression analyses using SPSS version 25.0 complex samples package to determine the association between women empowerment indices and utilization of health facilities. RESULTS: The overall prevalence of health facility utilization during childbirth was 84.1% (5,042/5,997): 95% CI: 83.6 to 85.4. Among the influencer domain variables, women from the southern (aOR = 2.25, 95% CI: 1.34-3.78), northern (aOR = 1.69,95% CI: 1.01-2.82) and eastern regions (aOR = 3.71, 95% CI: 2.03-6.77) had higher odds of health facility utilization compared to women in the western region, while women in polygamous marriages (aOR = 0.82, 95% CI: 0.69-0.98) had lower odds of utilizing health facilities compared to their counterparts in monogamous marriages. Furthermore, women who had their first birth when they were less than 18 years, had higher odds of utilizing health facilities (aOR = 1.22, 95% CI: 1.02-1.45) compared to those who were 18 years and above. Among the resource domain variables, women with post-primary education (aOR = 1.58, 95% CI: 1.21-2.06) had higher odds of utilizing health facilities compared to their counterparts with no education and women who belonged to the richest wealth quintile (aOR = 2.42, 95% CI: 1.31-4.46) had higher odds of utilizing health facilities compared to their counterparts belonging in the poorest quintile. None of the variables in the decision making domain was significantly associated with health facility utilization. CONCLUSION: These findings emphasize that, successful implementation of health facility utilization interventions should prioritize women empowerment with more pragmatic efforts. Policies and programme should aim at all women with more focus on those having lower education (primary and below), belonging to the poorest wealth quintile, give birth before reaching18 years and in polygamous marriages.

Exposure to different types of mass media and timing of antenatal care initiation: insights from the 2016 Uganda Demographic and Health Survey.

BACKGROUND: Early initiation of antenatal care (ANC) within the first trimester is highly recommended in the current 2016 World Health Organization (WHO) guidelines. Mass media has the potential to promote early initiation of ANC because it has been used successfully in several programs. However, there is paucity of literature on the effect of exposure to different types of media on the timing of ANC initiation in Uganda. Our study aimed at exploring associations between exposure to different types of mass media and timing of ANC initiation among women in Uganda. METHODS: We used a cross sectional study design, to conduct a secondary analysis of data collected in the 2016 Uganda Demographic and Health Survey (UDHS). We included weighted data of all the 10,152 women of reproductive age (15-49 years). Multistage stratified sampling was used to select study participants. Multivariable logistic regression was used to determine the association between exposure to different types of mass media and early initiation of ANC. RESULTS: Almost a third of the women (2953/10,152, 29.1%, 95% CI 27.9-29.6) initiated their first ANC contact in the first trimester. Women who listened to radio at least once a week (adjusted OR (aOR 1.14, 95% CI 1.01-1.30) and those who watched television less than once a week (aOR 1.28, 95% CI 1.07-1.53) had higher odds of initiating ANC earlier compared to their counterparts not exposed to radio and television respectively. CONCLUSION: Exposure to radio and television is associated with timing of ANC initiation in Uganda. Importantly, the two types of mass media have the potential to reach women with low levels of education and encourage them to utilize maternal health services. The Ugandan government needs to prioritize and intensify the use of radio and television to promote the benefits associated with timing of ANC initiation.

Rural-urban correlates of modern contraceptives utilization among adolescents in Zambia: a national cross-sectional survey.

BACKGROUND: Modern contraceptive use among adolescents is low despite the adverse effects of adolescent pregnancies. Understanding correlates of modern contraceptive use in different settings is key to the design of effective context-specific interventions. We aimed to determine factors associated with modern contraceptives use among adolescents in rural and urban settings of Zambia. METHODS: We analyzed secondary data from 2018 Zambia demographic and health survey (ZDHS) focusing on adolescent girls aged 15-19 years. We used multivariable logistic regression in SPSS version 25 to examine rural-urban variations in factors associated with modern contraceptive utilization. RESULTS: Overall, 12.0% (360/3000, 95% CI: 10.9-13.2) of adolescents in Zambia were using modern contraceptives. Use of modern contraceptives was higher in rural areas at 13.7% (230/1677, 95% CI: 12.1-15.3) compared to 9.8% (130/1323, 95% CI: 8.3-11.6) in urban areas. In the rural areas, having a child (aOR = 13.99; 95% CI 8.60-22.77), being married (aOR = 2.13; 95% CI 1.42-3.18), being older at 19 years (aOR = 3.90; 95% CI 1.52-10.03), having been visited by a field health worker (aOR = 1.62; 95% CI 1.01-2.64), having been exposed to family planning messages on mass media (aOR = 2.87; 95% CI 1.01-8.18) and belonging to the richest wealth quintile (aOR = 2.27; 95% CI 1.43-3.62) were associated with higher odds of contraceptive utilization. Furthermore, adolescents in the Northern (aOR = 0.29; 95% CI 0.11-0.80) and Luapula (aOR = 0.35; 95% CI 0.15-0.81) provinces were associated with less odds of utilizing contraceptives compared to those in Western province. In the urban areas, older age at 19 years (aOR = 4.80; 95% CI 1.55-14.84) and having a child (aOR = 18.52; 95% CI 9.50-36.14) were the only factors significantly associated with modern contraceptive utilization. CONCLUSION: Age and having a child were associated with modern contraceptive use in both rural and urban areas. In rural areas (province, marital status, being visited by field health workers, family planning messages exposure and wealth index) were the only associated factors. This indicates that interventions aiming to increase contraceptive utilization should be context specific.

Status of the latest 2016 World Health Organization recommended frequency of antenatal care contacts in Sierra Leone: a nationally representative survey.

BACKGROUND: Timely and increased frequency of quality antenatal care (ANC) contacts is one of the key strategies aimed at decreasing maternal and neonatal deaths. In 2016, the World Health Organization (WHO) revised the ANC guidelines to recommend at least eight ANC contacts instead of four. This study aimed to determine the proportion of women who received eight or more ANC contacts and associated factors in Sierra Leone. METHODS: We used Sierra Leone Demographic and Health Survey (UDHS) 2019 data of 5,432 women aged 15 to 49 years who had a live birth, within three years preceding the survey. Multistage stratified sampling was used to select study participants. We conducted multivariable logistic regression to identify factors associated with utilisation of eight or more ANC contacts using SPSS version 25 complex samples package. RESULTS: Out of 5,432 women, 2,399 (44.8%) (95% CI: 43.1-45.7) had their first ANC contact in the first trimester and 1,197 (22.0%) (95% CI: 21.2-23.4) had eight or more ANC contacts. Women who had their first ANC contact after first trimester (adjusted odds ratio, aOR, 0.58, 95% CI 0.49-0.68) and women aged 15 to 19 years had less odds of having eight or more contacts (aOR 0.64, 95% CI 0.45 to 0.91). Working (aOR 1.33, 95%CI 1.10 to 1.62) and wealthier women had higher odds of having eight or more contacts compared to poorer ones and those not working respectively. Women residing in the southern region, those using internet and less parous (less than five) women were associated with higher odds of having eight or more ANC contacts. Women who had no big problem obtaining permission to go health facilities also had higher odds of having eight or more ANC contacts compared to those who had big problems. CONCLUSION: Sierra Leone's adoption of eight or more ANC contacts is low and less than half of the women initiate ANC in the first trimester. To ensure increased access to recommended ANC visits, timely ANC should be encouraged. Attributes of women empowerment such as workings status, socio-economic status, and decision-making should also be emphasized.

Continuum of maternity care in Zambia: a national representative survey.

BACKGROUND: Globally, over half of maternal deaths are related to pregnancy-related complications. Provision of a continuum of care during pregnancy, childbirth and the postnatal period results in reduced maternal and neonatal morbidity and mortality. Hence this study determined the prevalence of the continuum of care and its determinants among women in Zambia. METHODS: We used weighted data from the Zambian Demographic and Health Survey (ZDHS) of 2018 for 7325 women aged 15 to 49 years. Multistage stratified sampling was used to select study participants. Complete continuum of care was considered when a woman had; at least four antenatal care (ANC) contacts, utilized a health facility for childbirth and had at least one postnatal check-up within six weeks. We conducted multivariable logistic regression to explore continuum of care in Zambia. All our analyses were done using SPSS version 25. RESULTS: Of the 7,325 women, 38.0% (2787/7325) (95% confidence interval (CI): 36.9-39.1) had complete continuum of maternal healthcare. Women who had attained tertiary level of education (adjusted odds ratio (AOR): 1.93, 95% CI: 1.09-3.42) and whose partners had also attained tertiary level of education (AOR: 2.58, 95% CI: 1.54-4.32) were more likely to utilize the whole continuum of care compared to those who had no education. Women who initiated ANC after the first trimester (AOR: 0.46, 95% CI: 0.39-0.53) were less likely to utilize the whole continuum of care compared to those who initiated in the first semester. Women with exposure to radio (AOR: 1.58, 95% CI: 1.27-1.96) were more likely to utilize the whole continuum of care compared to those who were not exposed to radio. Women residing in the Western province were less likely to utilize the entire continuum of care compared to those in the other nine provinces. CONCLUSION: Level of education of the women and of their partners, early timing of ANC initiation, residing in other provinces other than the Western province, and exposure to information through radio were positively associated with utilization of the entire continuum of care. Improving literacy levels and promoting maternity services through radio may improve the level of utilization of maternity services.

Factors associated with childhood overweight and obesity in Uganda: a national survey.

BACKGROUND: Childhood obesity is an emerging public health problem globally. Although previously a problem of high-income countries, overweight and obesity is on the rise in low- and middle-income countries. This paper explores the factors associated with childhood obesity and overweight in Uganda using data from the Uganda Demographic and Health Survey (UDHS) of 2016. METHODS: We used Uganda Demographic and Health Survey (UDHS) 2016 data of 4338 children less than 5 years. Multistage stratified sampling was used to select study participants and data were collected using validated questionnaires. Overweight and obesity were combined as the primary outcome. Children whose BMI z score was over two were considered as overweight while those with a BMI z score greater than three were considered as obese. We used multivariable logistic regression to determine factors associated with obesity and overweight among children under 5 years of age in Uganda. RESULTS: The prevalence of overweight and obesity was 5.0% (217/4338) (95% CI: 4.3-5.6), with overweight at 3.9% (168/4338: 95% CI: 3.2-4.3) and obesity at 1.1% (49/4338: 95% CI: 0.8-1.5). Mother's nutritional status, sex of the child, and child's age were associated with childhood obesity and overweight. Boys were more likely to be overweight or obese (aOR = 1.81; 95% CI 1.24 to 2.64) compared to girls. Children who were younger (36 months and below) and those with mothers who were overweight or obese were more likely to have obesity or overweight compared to those aged 49-59 months and those with underweight mothers respectively. Children from the western region were more likely to be overweight or obese compared to those that were from the North. CONCLUSION: The present study showed male sex, older age of the children, nutritional status of the mothers and region of residence were associated with obesity and overweight among children under 5 years of age.

Factors associated with undernutrition among 20 to 49 year old women in Uganda: a secondary analysis of the Uganda demographic health survey 2016.

BACKGROUND: Women are at risk of undernutrition due to biological, socio-economic, and cultural factors. Undernourished women have higher risk of poor obstetric outcomes. We aimed to determine the prevalence and factors associated with undernutrition among women of reproductive age in Uganda. METHODS: We used Uganda Demographic and Health Survey (UDHS) 2016 data of 4640 women aged 20 to 49 years excluding pregnant and post-menopausal women. Multistage stratified sampling was used to select study participants and data were collected using validated questionnaires. We used multivariable logistic regression to determine factors associated with underweight and stunting among 20 to 49 year old women in Uganda. RESULTS: The prevalence of underweight and stunting were 6.9% (318/4640) and 1.3% (58/4640) respectively. Women who belonged to the poorest wealth quintile (Adjusted Odds Ratio (AOR) 3.60, 95% CI 1.85-7.00) were more likely to be underweight compared to those who belonged to the richest wealth quintile. Women residing in rural areas were less likely to be underweight (AOR 0.63, 95%CI 0.41-0.96) compared to women in urban areas. Women in Western (AOR 0.30, 95% CI 0.20-0.44), Eastern (AOR 0.42, 95% CI 0.28-0.63) and Central regions (AOR 0.42, 95% CI 0.25-0.72) were less likely to be underweight compared to those in the Northern region. Women belonging to Central (AOR 4.37, 95% CI 1.44-13.20) and Western (AOR 4.77, 95% CI 1.28-17.78) regions were more likely to be stunted compared to those in the Northern region. CONCLUSION: The present study showed wealth index, place of residence and region to be associated with undernutrition among 20 to 49 year old women in Uganda. There is need to address socio-economic determinants of maternal undernutrition mainly poverty and regional inequalities.

Breast cancer risk and protracted low-to-moderate dose occupational radiation exposure in the US Radiologic Technologists Cohort, 1983-2008.

BACKGROUND: Although high-dose ionising radiation is associated with increased breast cancer risks, the association with protracted low-dose-rate exposures remains unclear. The US Radiologic Technologist study provides an opportunity to examine the association between low-to-moderate dose radiation and breast cancer incidence and mortality. METHODS: One thousand nine hundred and twenty-two self-reported first primary cancers were diagnosed during 1983-2005 among 66 915 female technologists, and 586 breast cancer deaths occurred during 1983-2008 among 83 538 female cohort members. Occupational breast dose estimates were based on work histories, historical data, and, after the mid-1970s, individual film badge measurements. Excess relative risks were estimated using Poisson regression with birth cohort stratification and adjustment for menopause, reproductive history, and other risk factors. RESULTS: Higher doses were associated with increased breast cancer incidence, with an excess relative risk at 100 mGy of 0.07 (95% confidence interval (CI): -0.005 to 0.19). Associations were strongest for technologists born before 1930 (excess relative risk at 100 mGy=0.16; 95% CI: 0.03-0.39) with similar patterns for mortality among technologists born before 1930. CONCLUSIONS: Occupational radiation to the breast was positively associated with breast cancer risk. The risk was more pronounced for women born before 1930 who began working before 1950 when mean annual doses (37 mGy) were considerably higher than in later years (1.3 mGy). However, because of the uncertainties and possible systematic errors in the occupational dose estimates before 1960, these findings should be treated with caution.

Reproductive factors, exogenous hormone use and risk of hepatocellular carcinoma among US women: results from the Liver Cancer Pooling Project.

BACKGROUND: Hepatocellular carcinoma (HCC) occurs less commonly among women than men in almost all regions of the world. The disparity in risk is particularly notable prior to menopause suggesting that hormonal exposures during reproductive life may be protective. Exogenous oestrogenic exposures such as oral contraceptives (OCs), however, have been reported to increase risk, suggesting that estrogens may be hepatocarcinogenic. To examine the effects of reproductive factors and exogenous hormones on risk, we conducted a prospective analysis among a large group of US women. METHODS: In the Liver Cancer Pooling Project, a consortium of US-based cohort studies, data from 799,500 women in 11 cohorts were pooled and harmonised. Cox proportional hazards regression models were used to generate hazard ratios (HRs) and 95% confidence intervals (CIs) for the associations of reproductive factors and exogenous hormones with HCC (n=248). RESULTS: Bilateral oophorectomy was associated with a significantly increased risk of HCC (HR=2.67, 95% CI=1.22-5.85), which did not appear to be related to a shorter duration of exposure to endogenous hormones or to menopausal hormone therapy use. There was no association between OC use and HCC (HR=1.12, 95% CI=0.82-1.55). Nor were there associations with parity, age at first birth, age at natural menopause, or duration of fertility. CONCLUSIONS: The current study suggests that bilateral oophorectomy increases the risk of HCC but the explanation for the association is unclear. There was no association between OC use and HCC risk. Examination of endogenous hormone levels in relation to HCC may help to clarify the findings of the current study.

Central adiposity, obesity during early adulthood, and pancreatic cancer mortality in a pooled analysis of cohort studies.

BACKGROUND: Body mass index (BMI), a measure of obesity typically assessed in middle age or later, is known to be positively associated with pancreatic cancer. However, little evidence exists regarding the influence of central adiposity, a high BMI during early adulthood, and weight gain after early adulthood on pancreatic cancer risk. DESIGN: We conducted a pooled analysis of individual-level data from 20 prospective cohort studies in the National Cancer Institute BMI and Mortality Cohort Consortium to examine the association of pancreatic cancer mortality with measures of central adiposity (e.g. waist circumference; n = 647 478; 1947 pancreatic cancer deaths), BMI during early adulthood (ages 18-21 years) and BMI change between early adulthood and cohort enrollment, mostly in middle age or later (n = 1 096 492; 3223 pancreatic cancer deaths). Multivariable hazard ratios (HRs) and 95% confidence intervals (CIs) were calculated using Cox proportional hazards regression models. RESULTS: Higher waist-to-hip ratio (HR = 1.09, 95% CI 1.02-1.17 per 0.1 increment) and waist circumference (HR = 1.07, 95% CI 1.00-1.14 per 10 cm) were associated with increased risk of pancreatic cancer mortality, even when adjusted for BMI at baseline. BMI during early adulthood was associated with increased pancreatic cancer mortality (HR = 1.18, 95% CI 1.11-1.25 per 5 kg/m(2)), with increased risk observed in both overweight and obese individuals (compared with BMI of 21.0 to <23 kg/m(2), HR = 1.36, 95% CI 1.20-1.55 for BMI 25.0 < 27.5 kg/m(2), HR = 1.48, 95% CI 1.20-1.84 for BMI 27.5 to <30 kg/m(2), HR = 1.43, 95% CI 1.11-1.85 for BMI ≥30 kg/m(2)). BMI gain after early adulthood, adjusted for early adult BMI, was less strongly associated with pancreatic cancer mortality (HR = 1.05, 95% CI 1.01-1.10 per 5 kg/m(2)). CONCLUSIONS: Our results support an association between pancreatic cancer mortality and central obesity, independent of BMI, and also suggest that being overweight or obese during early adulthood may be important in influencing pancreatic cancer mortality risk later in life.

Anaemia and associated factors among children aged 6-59 months during the post-ebola period in Sierra Leone: a national cross-sectional survey- 2019.

BACKGROUND: Anaemia is a global public health problem associated with early childhood adverse effects on mental, physical, and social development. Sierra Leone had made progress in reducing the prevalence of anaemia pre-Ebola period however this was affected by the Ebola epidemic which further strained an already struggling health system. Therefore, this study aimed to assess the prevalence and factors associated with anaemia during post-Ebola period among children aged 6-59 months in Sierra Leone. METHODS: We analyzed data from the 2019 Sierra Leone demographic and health survey (SLDHS), a nationally representative cross-sectional study. We used data collected using a stratified two-stage cluster sampling design that resulted in the random selection of a representative sample of 13,872 households. A total sample of 3,459 children aged 6-59 months were included in the study. Multivariable logistic regression was used to calculate the adjusted odds ratios and corresponding 95% confidence intervals. RESULTS: The prevalence of anaemia was 68.9%, that of mild anaemia was 35.8%, moderate anaemia was 30.3% and for severe anaemia was 2.8%. Children aged 6-36 months were 1.83 times more likely to have anaemia compared to those above 36 months, while boys 1.33 times more likely to be anaemic compared to girls. Children born in poor households, to mothers who had anaemia and had a history of fever had 65%, 85% and 38% increase in likelihood of childhood anaemia respectively. In addition, children living in rural areas and stunted were 1.55 and 1.38 times more likely to be anaemic respectively compared to those living in urban areas and not stunted. Children born to younger mothers (15-24 years) were 1.45 times more likely to be anaemic compared to older mother (35-49 years. CONCLUSION: The current study demonstrated the predominant existence of anaemia among children aged 6-59 months in Sierra Leone. Owing to the adverse effects of anaemia on the development of children in the future, there is an urgent need for effective and efficient remedial public health interventions to prevent further complications.

Implementation of community-based management of severe acute malnutrition in conflict affected regions: a case of South Kordofan, Sudan.

Malnutrition is the major cause of mortality and morbidity globally with undernutrition contributing about 45% of all deaths of under five children. Besides the direct effects of protracted conflicts, the macroeconomic crisis that has greatly increased the national inflation rate hence devastating the purchasing power, the COVID-19 outbreak, flooding, and the Desert Locusts have contributed to a food security emergency. Besides being among the most under resourced states, South Kordofan has experienced years of conflict resulting in displacement of people and extensive infrastructure destruction with high rates of malnutrition. The state currently has 230 health facilities and out of these, only 140 are providing outpatient therapeutic programme centres with 28.6% (40) of these being operated by the state ministry of health and the rest by the international non-governmental organizations. Limited resources leading to donor dependence, limited accessibility due to insecurity and floods, poor referral system and gaps in continuity of care, lack of operational and implementation research data and limited integration of management of malnutrition in other health services have negatively affected effective implementation. Ensuring effective and efficient community based management of acute malnutrition, implementation needs action beyond the health sector with a multi-sectoral and integration approach. Federal and state development frameworks should ensure a comprehensive multi-sectoral nutrition policy with strong political commitment and allocation of adequate resources to ensure integrated and quality implementation.

Risk of treatment-related esophageal cancer among breast cancer survivors.

BACKGROUND: Radiotherapy for breast cancer may expose the esophagus to ionizing radiation, but no study has evaluated esophageal cancer risk after breast cancer associated with radiation dose or systemic therapy use. DESIGN: Nested case-control study of esophageal cancer among 289 748 ≥5-year survivors of female breast cancer from five population-based cancer registries (252 cases, 488 individually matched controls), with individualized radiation dosimetry and information abstracted from medical records. RESULTS: The largest contributors to esophageal radiation exposure were supraclavicular and internal mammary chain treatments. Esophageal cancer risk increased with increasing radiation dose to the esophageal tumor location (P(trend )< 0.001), with doses of ≥35 Gy associated with an odds ratio (OR) of 8.3 [95% confidence interval (CI) 2.7-28]. Patients with hormonal therapy ≤5 years preceding esophageal cancer diagnosis had lower risk (OR = 0.4, 95% CI 0.2-0.8). Based on few cases, alkylating agent chemotherapy did not appear to affect risk. Our data were consistent with a multiplicative effect of radiation and other esophageal cancer risk factors (e.g. smoking). CONCLUSIONS: Esophageal cancer is a radiation dose-related complication of radiotherapy for breast cancer, but absolute risk is low. At higher esophageal doses, the risk warrants consideration in radiotherapy risk assessment and long-term follow-up.

Antioxidant Phytochemicals for the Prevention of Fluoride-Induced Oxidative Stress and Apoptosis: a Review.

Fluorosis is a major public health problem globally. The non-availability of specific treatment and the irreversible nature of dental and skeletal lesions poses a challenge in the management of fluorosis. Oxidative stress is known to be one of the most important mechanisms of fluoride toxicity. Fluoride promotes the accumulation of reactive oxygen species by inhibiting the activity of antioxidant enzymes, resulting in the excessive production of reactive oxygen species at the cellular level which further leads to activation of cell death processes such as apoptosis. Phytochemicals that act as antioxidants have the potential to protect cells from oxidative stress. Evidence confirms that clinical symptoms of fluorosis can be mitigated to some extent or prevented by long-term intake of antioxidants and plant products. The primary purpose of this review is to examine recent findings that focus on the amelioration of fluoride-induced oxidative stress and apoptosis by natural and synthetic phytochemicals and their molecular mechanisms of action.

Continuum of maternal and newborn health in Sierra Leone: a 2019 national survey.

INTRODUCTION: Globally, Sierra Leone has some of the worst maternal and child health indicators. The situation is worsened by a dearth of evidence about the level of continuum of care, an evidence-based intervention aimed at reducing maternal and perinatal morbidity and mortality. Hence this study aimed to assess the level of and factors associated with continuum of maternal and newborn care in Sierra Leone. METHOD: This study analyzed secondary data from the 2019 Sierra Leone Demographic Health Survey. Analysis was restricted to women who had a live birth in the 5 years preceding the survey (n = 7326). Complete continuum of care was considered when a woman reported having had at least eight antenatal care contacts, skilled birth attendance and mother and baby had at least one postnatal check-up. Bi-variable and multivariable logistic regression were performed using the statistical package for the social sciences software version 25. RESULTS: Only 17.9% (95% CI: 17.4-19.1) of the women utilized complete continuum of care for maternal and newborn health services in Sierra Leone. About 22% (95% CI: 21.3-23.1) utilized 8 or more antenatal care contacts, 88% (95% CI: 87.9-89.4) had skilled birth attendance while 90.7% (95% CI: 90.2-91.5) and 90.4% (95% CI: 89.9-91.2) of mothers and neonates utilized postnatal care respectively. Having started antenatal care within the first trimester (aOR 1.71, 95% CI: 1.46-2.00), being resident in the Southern region (aOR 1.85, 95% CI: 1.23-2.80), belonging to richer wealth quintile (aOR 1.76, 95% CI: 1.27-2.44), using internet (aOR 1.49, 95% CI: 1.12-1.98) and having no big problems seeking permission to access healthcare (aOR 1.34, 95% CI: 1.06-1.69) were significantly associated with utilization of continuum of care. CONCLUSION: The overall completion of continuum of maternal care is low, with ANC being the lowest utilized component of continuum of care. These findings call for urgent attention for maternal health stakeholders to develop and implement tailored interventions prioritizing women empowerment, access to affordable internet services, timely initiation of ANC contacts, women in developed regions such as the Western and those from poor households.

Trajectories of humoral and cellular immunity and responses to a third dose of mRNA vaccines against SARS-CoV-2 in patients with a history of anti-CD20 therapy.

BACKGROUND: The majority of patients with B-cell-depleting therapies show compromised vaccination-induced immune responses. Herein, we report on the trajectories of anti-SARS-CoV-2 immune responses in patients of the RituxiVac study compared with healthy volunteers and investigate the immunogenicity of a third vaccination in previously humoral non-responding patients. METHODS: We investigated the humoral and cell-mediated immune response after SARS-CoV-2 messanger RNA vaccination in patients with a history with anti-CD20 therapies. Coprimary outcomes were antispike and SARS-CoV-2-stimulated interferon-γ concentrations in vaccine responders 4.3 months (median; IQR: 3.6-4.8 months) after first evaluation, and humoral and cell-mediated immunity (CMI) after a third vaccine dose in previous humoral non-responders. Immunity decay rates were compared using analysis of covariance in linear regression. RESULTS: 5.6 months (IQR: 5.1-6.7) after the second vaccination, we detected antispike IgG in 88% (29/33) and CMI in 44% (14/32) of patients with a humoral response after two-dose vaccination compared with 92% (24/26) healthy volunteers with antispike IgG and 69% (11/16) with CMI 6.8 months after the second vaccination (IQR: 6.0-7.1). Decay rates of antibody concentrations were comparable between patients and controls (p=0.70). In two-dose non-responders, a third SARS-CoV-2 vaccine elicited humoral responses in 19% (6/32) and CMI in 32% (10/31) participants. CONCLUSION: This study reveals comparable immunity decay rates between patients with anti-CD20 treatments and healthy volunteers, but inefficient humoral or CMI after a third SARS-CoV-2 vaccine in most two-dose humoral non-responders calling for individually tailored vaccination strategies in this population.Trial registration numberNCT04877496; ClinicalTrials.gov number.

Rural and Urban Correlates of Stunting Among Under-Five Children in Sierra Leone: A 2019 Nationwide Cross-Sectional Survey.

BACKGROUND: Undernutrition accounts for at least 50% of the annual global under-five mortality burden. Although disparities in the childhood stunting between urban and rural areas in Sierra Leone have been documented, information on factors associated with these differences is lacking. We aimed to determine rural-urban correlates of stunting among children under the age of 5 in Sierra Leone. METHODS: We analyzed data from 2019 Sierra Leone demographic and health survey (SLDHS) focusing on under-five children. We conducted multivariable logistic regression to examine rural-urban factors associated with childhood stunting. RESULTS: Prevalence of stunting was 31.6% (95% CI 29.8-33.2) in rural areas and 24.0% (95% CI 21.6-26.1) in urban areas. Within the rural areas, children of stunted mothers (aOR = 2.37; 95% CI 1.07-5.24, P < .05), younger mothers aged 15 to 19 years (aOR = 2.08; 95% CI 1.17-3.69, P < .05), uneducated mothers (aOR = 1.87; 95% CI 1.28-2.71, P < .01), as well as older children (24-59 months) (aOR = 1.83; 95% CI 1.48-2.27, P < .001), and boys (aOR = 1.37; 95% CI 1.12-1.66, P < .01) were more likely to be stunted compared to those of non-stunted, older, post-primary education mothers and those who were less than 24 months and girls respectively. While urban children whose fathers had lower education (aOR = 1.94; 95% CI 1.10-3.42, P < .05), whose mothers were more parous (para 2-4) (aOR = 1.74; 95% CI 1.03-2.95, P < .05), and boys (aOR = 1.48; 95% CI 1.06-2.08, P < .05) were more likely to be stunted compared to their counterparts with fathers that had tertiary education, mothers of low parity and girls, respectively. CONCLUSIONS: Stunting is more prevalent in the rural areas compared to the urban areas. Sex of the child was the only significant factor in both rural and urban areas. Our study findings suggest that programs designed to reduce stunting should aim for integrated yet context specific interventions in rural and urban areas.

Underweight and associated factors among lactating women in Uganda: Evidence from the Uganda demographic health survey 2016.

BACKGROUND: Lactating mothers are at increased risk of being underweight because of the physiological changes that lead to disproportionately higher energy and nutrient requirements compared to their non-pregnant and non-lactating counterparts. OBJECTIVE: We aimed to determine the prevalence and factors associated with being underweight among lactating women in Uganda. METHODS: We used the Uganda Demographic and Health Survey (UDHS) 2016 data of 1356 women aged 20 to 49 years. Multistage stratified sampling was used to select study participants. The data were collected using validated questionnaires. We used multivariable logistic regression to determine factors associated with underweight among 20 to 49-year-old lactating women in Uganda. RESULTS: The prevalence of underweight was 8.2% (111/1356) (95% confidence interval, [CI]: 7.0-10.0). Women who had no education were 10.21 (adjusted odds ratio, [AOR] = 10.21; 95% CI: 1.61-64.74) times as likely to be underweight as those who had higher (post-secondary) education levels. Women who were not working were 50% (AOR = 0.50; 95% CI: 0.26-0.94) less likely to be underweight compared to those who were working. Women in the Western (AOR = 0.15; 95% CI: 0.07-0.32), Eastern (AOR = 0.34; 95% CI: 0.18-0.66), and Central (AOR = 0.30; 95% CI: 0.12-0.74) regions were 85%, 66% and 70% respectively less likely to be underweight compared to those in the Northern region. CONCLUSION: Based on the findings of this and other studies, it is important for the different stakeholders to design targeted nutrition programs for lactating women particularly those with low levels of education and those from the Northern region.

Humoral and cellular responses to mRNA vaccines against SARS-CoV-2 in patients with a history of CD20 B-cell-depleting therapy (RituxiVac): an investigator-initiated, single-centre, open-label study.

BACKGROUND: B-cell-depleting therapies increase the risk of morbidity and mortality due to COVID-19. Evidence-based SARS-CoV-2 vaccination strategies for patients on B-cell-depleting therapies are scarce. We aimed to investigate humoral and cell-mediated immune responses to SARS-CoV-2 mRNA-based vaccines in patients receiving CD20-targeted B-cell-depleting agents for autoimmune disease, malignancy, or transplantation. METHODS: The RituxiVac study was an investigator-initiated, single-centre, open-label study done at the Bern University Hospital (Bern, Switzerland). Patients with a treatment history of anti-CD20-depleting agents (rituximab or ocrelizumab) and with no previous history of SARS-CoV-2 infection were enrolled between April 26 and June 30, 2021, for analysis of humoral and cell-mediated immune responses (by interferon-γ [IFNγ] release assay) at least 4 weeks after completing vaccination against SARS-CoV-2. Healthy controls without a history of SARS-CoV-2 infection were also enrolled at least 4 weeks after completing vaccination against SARS-CoV-2. All study participants received two doses of either the Pfizer-BioNTech BNT162b2 vaccine or the Moderna mRNA-1273 vaccine. The primary outcome was the proportion of patients with a history of anti-CD20 treatment who showed a humoral immune response against the SARS-CoV-2 spike protein in comparison with immunocompetent controls. Prespecified secondary endpoints were the effect of anti-CD20 therapy (including time since last treatment and cumulative dose) on humoral or cell-mediated immune responses to SARS-CoV-2 vaccination, and biomarkers of immunocompetence. This study is registered with ClinicalTrials.gov, NCT04877496. FINDINGS: The final study population comprised 96 patients and 29 immunocompetent controls. The median age of patients was 67 years (IQR 57-72) and of controls was 54 years (45-62), and 51 (53%) of 96 patients and 19 (66%) of 29 controls were female. The median time since last anti-CD20 treatment was 1·07 years (IQR 0·48-2·55) and the median cumulative dose of an anti-CD20 depleting agent was 2·80 g (1·50-5·00). Anti-spike IgG antibodies were detected in 47 (49%) of 96 patients 1·79 months (IQR 1·16-2·48) after the second vaccine dose compared to 29 (100%) of 29 controls 1·81 months (1·17-2·48) after the second vaccine dose (p<0·001). SARS-CoV-2-specific IFNγ release was detected in 13 (20%) of 66 patients and 21 (75%) of 28 of healthy controls (p<0·001). Only nine (14%) of 66 patients were double positive for anti-SARS-CoV-2 spike IgG and cell-mediated responses, compared with 21 (75%) of 28 healthy controls (p<0·001). Time since last anti-CD20 therapy (>7·6 months; positive predictive value 0·78), peripheral CD19+ cell count (>27 cells per µL; positive predictive value 0·70), and CD4+ lymphocyte count (>653 cells per µL; positive predictive value 0·71) were predictive of humoral vaccine response (area under the curve [AUC] 67% [95% CI 56-78] for time since last anti-CD20 therapy, 67% [55-80] for peripheral CD19+ count, and 66% [54-79] for CD4+ count). INTERPRETATION: This study provides further evidence of blunted humoral and cell-mediated immune responses elicited by SARS-CoV-2 mRNA vaccines in patients with a history of CD20 B-cell-depleting treatment. Lymphocyte subpopulation counts were associated with vaccine response in this highly vulnerable population. On validation, these results could help guide both the administration of SARS-CoV-2 vaccines and B-cell-depleting agents in this population. FUNDING: Bern University Hospital.