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1.
BMC Public Health ; 24(1): 278, 2024 01 23.
Artigo em Inglês | MEDLINE | ID: mdl-38263074

RESUMO

INTRODUCTION: Work-life balance (WLB) plays a significant role in improving career satisfaction and reducing burnout. While health workers' productivity is considered a key factor in client care, there is limited effort put into examining how health workers perceive the balance of their jobs with family and other societal responsibilities (PWLB), especially in low-income countries where the number of health workers in active patient care is low. The purpose of this study was to assess factors associated with perceived work-life balance (PWLB) among health workers in the rural district of Gulu, Northern Uganda. METHODS: A health facility-based cross-sectional analytical study was conducted. A simple random sampling technique was used to select 384 study participants from the three main hospitals in Gulu District. Data were collected from health workers using a self-administered semi-structured questionnaire and analyzed using STATA version 15. Factors associated with PWLB were determined at a multivariable level using a modified Poisson regression with robust variance with a 95% confidence level and 5% statistical significance. Adjusted prevalent ratios (APR) were used to report the Factors associated with PWLB. RESULTS: Only 157/384 (40.9%) of the health workers reported a positive perceived work-life balance. Multivariable modified Poisson regression analysis showed positive statistical association with PWLB of a laboratory worker(APR = 1.74, 95% CI: 1.10-2.75); a midwife(APR = 1.82, 95% CI:1.13-2.93) or a nurse (APR = 2.19, 95% CI = 1.45-3.30); working in the inpatient department (APR = 1.97, 95% CI: 1.31-2.96) or laboratory (APR = 2.09, 95%CI: 1.34-3.28); and having a flexible work schedule (APR = 28.32, 95%CI:14.52-55.22); feeling satisfied at work (APR = 1.58; 95% CI:1.17-2.10), and belonging to an association in the community (APR = 32.71, 95% Cl:11.91-89.88). On the other hand, employment tenure of 1-4 years (APR = 0.63,95% CI:0.40-0.99) was negatively associated with perceived work-life balance. CONCLUSION: Only four in every 10 health workers experienced a positive perceived work-life balance. The type of profession, duty station, flexibility in work schedule, satisfaction with work, and availability of social support systems, were independent determinants of perceived WLB. Therefore, nurturing a system of reviews of the scheduling of health workers, allowing internal staff rotation, and fostering support systems around the health workers could be beneficial for WLB.


Assuntos
Instalações de Saúde , Equilíbrio Trabalho-Vida , Humanos , Estudos Transversais , Uganda , Hospitais
2.
BMC Public Health ; 23(1): 1497, 2023 08 07.
Artigo em Inglês | MEDLINE | ID: mdl-37550680

RESUMO

BACKGROUND: Adequate sexual and reproductive health literacy (SRHL) among young people has been linked to informed sexual behaviours. Studies on SRHL have largely been conducted among the general adolescent population. Little is known about youth aged 15-24 years living with human immunodeficiency virus (YLHIV). There is a possible lack of SRHL in this population, considering the high rate of teenage pregnancies and unprotected sex reported by YLHIV. This study aimed to assess the prevalence and associated personal and environmental factors for SRHL among YLHIV at a high-volume urban HIV Clinic in Uganda. METHODS: Through a cross-sectional survey, YLHIV receiving routine HIV care services at Baylor-Uganda HIV Clinic were interviewed using an adapted European Health Literacy Survey (HLS-EU). Using simple random sampling, eligible youth who received HIV care services between August and November 2019 were enrolled in the study. SRHL scores were computed using the HLS-EU index method; and individuals whose scores ranged from 34 to 50 were considered health literate. We used descriptive statistics to determine the prevalence. Potential associated personal and environmental factors (p<0.05) were identified by performing two-step inferential statistics, bivariate analysis and binary logistic regression. Odds ratios were calculated to estimate the likelihood of youth being health literate on sexual and reproductive health (SRH) issues in comparison with the reference categories, and 95% confidence intervals were determined to establish whether the relationships were statistically significant. RESULTS: Of the 267 YLHIV interviewed at Baylor-Uganda HIV Clinic, 167 (62.5%) were female with a mean age of 18.9 years (SD± 2.8), and the majority (242; 90.6%) were vertically infected with HIV. Only 52 (19.5%) were health literate on SRH issues. At the multivariate level, YLHIV who never had difficulty accessing SRH information were 0.391 times less likely to be health literate on SRH issues than their counterparts with challenges in accessing SRH information (Adjusted Odds Ratio [AOR] = 0.391, 95% CI =0.178 to 0.860; p= 0.019). YLHIV who did not find it easy to access SRH care service points were 2.929 times more likely to be literate in SRH than those who found it easy to access such services (Adjusted Odds Ratio [AOR] = 2.929, 95% CI =1.241 to 6.917; p=0.014). Additionally, YLHIV who did not listen to radio health talks were 2.406 times more likely to be health literate on SRH issues than those who did (AOR = 2.406, 95% CI =1.133 to 5.112; p=0.022). CONCLUSIONS: SRHL is an unmet need among YLHIV; only 19.5% were health literate on SRH issues. This could complicate the achievement of the UNAIDS sustainable development goal (SDG) of an HIV/AIDS-free generation by 2030 because low health literacy (HL) skills can affect the efficacy of almost all HIV disease prevention and health promotion efforts. Inaccessible SRH care service points and not listening to radio health talks were positively associated with SRHL, while having access to SRH information was negatively associated with SRHL.


Assuntos
Síndrome da Imunodeficiência Adquirida , Infecções por HIV , Letramento em Saúde , Serviços de Saúde Reprodutiva , Gravidez , Humanos , Adolescente , Feminino , Masculino , Estudos Transversais , Saúde Reprodutiva , HIV , Uganda/epidemiologia , Prevalência , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Comportamento Sexual
3.
Malar J ; 15: 157, 2016 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-26969283

RESUMO

BACKGROUND: Malaria among school children is increasingly receiving attention, yet the burden of malaria in this age group is poorly defined. This study presents data on malaria morbidity among school children in Bungoma county, western Kenya. METHOD: This study investigated the burden and risk factors of Plasmodium falciparum infection, clinical malaria, and anaemia among 2346 school children aged 5-15 years, who were enrolled in an individually randomized trial evaluating the effect of anthelmintic treatment on the risks of malaria. At baseline, children were assessed for anaemia and nutritional status and information on household characteristics was collected. Children were followed-up for 13 months to assess the incidence of clinical malaria by active detection, and P. falciparum infection and density evaluated using repeated cross-sectional surveys over 15 months. RESULTS: On average prevalence of P. falciparum infection was 42% and ranged between 32 and 48% during the five cross-sectional surveys. Plasmodium falciparum prevalence was significantly higher among boys than girls. The overall incidence of clinical malaria was 0.26 episodes per person year (95% confidence interval, 0.24-0.29) and was significantly higher among girls (0.23 versus 0.31, episodes per person years). Both infection prevalence and clinical disease varied by season. In multivariable analysis, P. falciparum infection was associated with being male, lower socioeconomic status and stunting. The risk of clinical malaria was associated with being female. CONCLUSION: These findings show that the burden of P. falciparum parasitaemia, clinical malaria and anaemia among school children is not insignificant, and suggest that malaria control programmes should be expanded to include this age group.


Assuntos
Malária Falciparum/epidemiologia , Parasitemia/epidemiologia , Adolescente , Anemia/epidemiologia , Anemia/etiologia , Criança , Pré-Escolar , Estudos Transversais , Feminino , Seguimentos , Humanos , Quênia/epidemiologia , Malária Falciparum/complicações , Masculino , Prevalência , Ensaios Clínicos Controlados Aleatórios como Assunto , Fatores de Risco , Instituições Acadêmicas
4.
Trop Med Int Health ; 20(5): 665-672, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25611008

RESUMO

OBJECTIVE: Unlike other herpes viruses, Kaposi's sarcoma-associated herpes virus (KSHV) is not ubiquitous worldwide and is most prevalent in sub-Saharan Africa. The reasons for this are unclear. As part of a wider investigation of factors that facilitate transmission in Uganda, a high prevalence country, we examined the association between antimalaria antibodies and seropositivity against KSHV. METHODS: Antibodies against P. falciparum merozoite surface protein (PfMSP)-1, P. falciparum apical membrane antigen (PfAMA)-1 and KSHV antigens (ORF73 and K8.1) were measured in samples from 1164 mothers and 1227 children. RESULTS: Kaposi's sarcoma-associated herpes virus seroprevalence was 69% among mothers and 15% children. Among mothers, KSHV seroprevalence increased with malaria antibody titres: from 60% to 82% and from 54% to 77%, comparing those with the lowest and highest titres for PfMSP-1 and PfAMA-1, respectively (P < 0.0001). Among children, only antibodies to PfAMA-1 were significantly associated with KSHV seropositivity, (P < 0.0001). In both mothers and children, anti-ORF73 antibodies were more strongly associated with malaria antibodies than anti-K8.1 antibodies. CONCLUSION: The association between malaria exposure and KSHV seropositivity suggests that malaria is a cofactor for KSHV infection or reactivation.

5.
Pediatr Allergy Immunol ; 25(5): 481-8, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25171741

RESUMO

BACKGROUND: Worms may protect against allergy. Early-life worm exposure may be critical, but this has not been fully investigated. OBJECTIVES: To investigate whether worms in pregnancy and in early childhood are associated with childhood eczema incidence. METHODS: The Entebbe Mother and Baby Study, an anthelminthic treatment trial, enrolled pregnant women between 2003 and 2005 in Uganda. Mothers were investigated for worms during pregnancy and children annually. Eczema was doctor-diagnosed from birth to age five years. A planned observational analysis was conducted within the trial cohort to investigate associations between worms and eczema. RESULTS: Data for 2345 live-born children were analysed. Hookworm was the most prevalent maternal worm (45%). Childhood worms were less prevalent. Eczema incidence was 4.68/100 person-years. Maternal hookworm was associated with reduced eczema incidence [adjusted hazard ratio (95% confidence interval), p-value: 0.71(0.51-0.99), 0.04] and modified effects of known risk factors for eczema: Dermatophagoides-specific IgE in children was positively associated with eczema incidence if the mother had no hookworm [2.72(1.11-6.63), 0.03], but not if the mother had hookworm [0.41(0.10-1.69), 0.22], interaction p-value = 0.03. Similar interactions were seen for maternal history of eczema {[2.87(1.31-6.27, 0.008) vs. [0.73(0.23-2.30), 0.60], interaction p-value = 0.05}, female gender {[1.82(1.22-2.73), 0.004 vs. [0.96(0.60-1.53), 0.87], interaction p-value = 0.04} and allergen-specific IgE. Childhood Trichuris trichiura and hookworm were inversely associated with eczema. CONCLUSIONS: Maternal hookworm modifies effects of known risk factors for eczema. Mechanisms by which early-life worm exposures influence allergy need investigation. Worms or worm products, and intervention during pregnancy have potential for primary prevention of allergy.


Assuntos
Eczema/epidemiologia , Infecções por Uncinaria/imunologia , Efeitos Tardios da Exposição Pré-Natal/imunologia , Albendazol/uso terapêutico , Anti-Helmínticos/uso terapêutico , Pré-Escolar , Estudos de Coortes , Método Duplo-Cego , Feminino , Infecções por Uncinaria/tratamento farmacológico , Humanos , Incidência , Lactente , Recém-Nascido , Masculino , Gravidez , Modelos de Riscos Proporcionais , Fatores de Risco , Uganda/epidemiologia
6.
J Infect Dis ; 208(12): 2007-16, 2013 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-23904293

RESUMO

BACKGROUND: Helminth and malaria coinfections are common in the tropics. We investigated the hypothesis that prenatal exposure to these parasites might influence susceptibility to malaria in childhood. METHODS: In a birth cohort of 2345 mother-child pairs in Uganda, maternal helminth and malaria infection status was determined during pregnancy, and childhood malaria episodes were recorded from birth to age 5 years. We examined associations between maternal infections and malaria in the offspring. RESULTS: Common maternal infections were hookworm (45%), Mansonella perstans (21%), Schistosoma mansoni (18%), and Plasmodium falciparum (11%). At age 5 years, 69% of the children were still under follow-up. The incidence of malaria was 34 episodes per 100 child-years, and the mean prevalence of asymptomatic malaria at annual visits was 5.4%. Maternal hookworm and M. perstans infections were associated with an increased rate of childhood clinical malaria (adjusted hazard ratio [aHR], 1.24, 95% confidence interval [CI], 1.10-1.41; aHR, 1.20, 95% CI, 1.05-1.38, respectively). S. mansoni infection had no consistent association with childhood malaria. CONCLUSIONS: This is the first report of an association between helminth infections in pregnancy and malaria in the offspring and indicates that helminth infections in pregnancy may increase the burden of childhood malaria morbidity.


Assuntos
Helmintíase/parasitologia , Malária/parasitologia , Complicações Parasitárias na Gravidez/parasitologia , Adulto , Pré-Escolar , Estudos de Coortes , Coinfecção/parasitologia , Feminino , Helmintíase/epidemiologia , Humanos , Incidência , Lactente , Recém-Nascido , Malária/epidemiologia , Masculino , Gravidez , Complicações Parasitárias na Gravidez/epidemiologia , Uganda/epidemiologia
7.
Public Health Nutr ; 16(9): 1548-57, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23507372

RESUMO

OBJECTIVE: To assess the associations between maternal HIV infection and growth outcomes of HIV-exposed but uninfected infants and to identify other predictors for poor growth among this population. DESIGN: Within a trial of de-worming during pregnancy, the cohort of offspring was followed from birth. HIV status of the mothers and their children was investigated and growth data for children were obtained at age 1 year. Length-for-age, weight-for-age and weight-for-length Z-scores were calculated for each child; Z-scores ,22 were defined as stunting, underweight and wasting, respectively. SETTING: The study was conducted in Entebbe municipality and Katabi subcounty, Uganda. SUBJECTS: The sample consisted of 1502 children aged 1 year: HIV-unexposed (n 1380) and HIV-exposed not infected (n 122). RESULTS: Prevalence of stunting, underweight and wasting was 14.2%, 8.0% and 3.9%, respectively. There was evidence for an association between maternal HIV infection and odds of being underweight (adjusted OR52.32; 95% CI 1.32, 4.09; P=0.006) but no evidence for an association with stunting or with wasting. Young maternal age, low maternal education, low birth weight, early weaning and experiencing a higher number of episodes of malaria during infancy were independent predictors for stunting and underweight. A higher number of living children in the family was associated with wasting. CONCLUSIONS: Maternal HIV infection was associated with being underweight in HIV-exposed uninfected infants. The success of programmes for prevention of mother-to-child HIV transmission means that an increasing number of infants will be born to HIV-infected women without acquiring HIV. Therefore, viable nutritional interventions need to be identified for this population.


Assuntos
Transtornos do Crescimento/etiologia , Crescimento , Infecções por HIV/complicações , Transmissão Vertical de Doenças Infecciosas , Complicações Infecciosas na Gravidez , Efeitos Tardios da Exposição Pré-Natal , Adolescente , Adulto , Fatores Etários , Estatura , Escolaridade , Feminino , Transtornos do Crescimento/epidemiologia , Infecções por HIV/transmissão , Humanos , Lactente , Recém-Nascido de Baixo Peso , Malária/complicações , Malária/epidemiologia , Masculino , Mães , Gravidez , Magreza/epidemiologia , Uganda/epidemiologia , Síndrome de Emaciação/epidemiologia , Desmame , Adulto Jovem
8.
Lancet ; 377(9759): 52-62, 2011 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-21176950

RESUMO

BACKGROUND: Helminth infections affect the human immune response. We investigated whether prenatal exposure to and treatment of maternal helminth infections affects development of an infant's immune response to immunisations and unrelated infections. METHODS: In this randomised, double-blind, placebo-controlled trial, we enrolled 2507 women in the second or third trimester of pregnancy who were planning to deliver in Entebbe General Hospital, Entebbe, Uganda. With a computer-generated random number sequence in blocks of 100, we assigned patients to 440 mg albendazole and 40 mg/kg praziquantel (n=628), 440 mg albendazole and a praziquantel-matching placebo (n=625), 40 mg/kg praziquantel and an albendazole-matching placebo (n=626), or an albendazole-matching placebo and praziquantel-matching placebo (n=628). All participants and hospital staff were masked to allocation. Primary outcomes were immune response at age 1 year to BCG, tetanus, and measles immunisation; incidence of infectious diseases during infancy; and vertical HIV transmission. Analysis was by intention-to-treat. This trial is registered, number ISRCTN32849447. FINDINGS: Data were available at delivery for 2356 women, with 2345 livebirths; 2115 (90%) of liveborn infants remained in follow-up at 1 year of age. Neither albendazole nor praziquantel treatments affected infant response to BCG, tetanus, or measles immunisation. However, in infants of mothers with hookworm infection, albendazole treatment reduced interleukin-5 (geometric mean ratio 0·50, 95% CI 0·30-0·81, interaction p=0·02) and interleukin-13 (0·52, 0·34-0·82, 0·0005) response to tetanus toxoid. The rate per 100 person-years of malaria was 40·9 (95% CI 38·3-43·7), of diarrhoea was 134·1 (129·2-139·2), and of pneumonia was 22·3 (20·4-24·4). We noted no effect on infectious disease incidence for albendazole treatment (malaria [hazard ratio 0·95, 95% CI 0·79-1.14], diarrhoea [1·06, 0·96-1·16], pneumonia [1·11, 0·90-1·38]) or praziquantel treatment (malaria [1·00, 0·84-1·20], diarrhoea [1·07, 0·98-1·18], pneumonia [1·00, 0·80-1·24]). In HIV-exposed infants, 39 (18%) were infected at 6 weeks; vertical transmission was not associated with albendazole (odds ratio 0·70, 95% CI 0·35-1·42) or praziquantel (0·60, 0·29-1·23) treatment. INTERPRETATION: These results do not accord with the recently advocated policy of routine antenatal anthelmintic treatment, and the value of such a policy may need to be reviewed. FUNDING: Wellcome Trust.


Assuntos
Anti-Helmínticos/administração & dosagem , Doenças Transmissíveis/imunologia , Infecções por HIV/imunologia , Complicações Parasitárias na Gravidez/imunologia , Efeitos Tardios da Exposição Pré-Natal/imunologia , Adulto , Albendazol/administração & dosagem , Albendazol/efeitos adversos , Anti-Helmínticos/efeitos adversos , Relação Dose-Resposta a Droga , Método Duplo-Cego , Feminino , Humanos , Lactente , Transmissão Vertical de Doenças Infecciosas , Praziquantel/administração & dosagem , Praziquantel/efeitos adversos , Gravidez , Complicações Parasitárias na Gravidez/tratamento farmacológico , Vacinação , Adulto Jovem
9.
Trop Med Int Health ; 17(12): 1465-9, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22994260

RESUMO

OBJECTIVES: To assess the reliability of maternally recalled birthweight and size in Entebbe, Uganda. METHODS: The study population comprised 404 mothers, who were participants in the Entebbe Mother and Baby Study (EMaBS). Mothers were recruited to EMaBS during antenatal care, maternal characteristics were recorded during pregnancy, and birthweight was recorded at delivery. Four to seven years after delivery, mothers were asked to recall the child's birthweight and size. Their responses were compared with the birthweight recorded in the EMaBS database. RESULTS: Of 404 interviewed mothers, 303 (75%) were able to give an estimate of birthweight and for 265 of these EMaBS data on recorded birthweights were available. Women who were educated and whose children had low birth order were more likely to be able to give an estimate: 37 (14%) recalled the exact recorded birthweight; a further 52 (20%) were accurate to within 0.1 kg of the recorded weight. On average, mothers overestimated birthweight by 0.06 kg (95% CI: 0.00-0.13 kg, P = 0.04). Recalled and recorded birthweights showed moderate agreement with an intraclass correlation coefficient of 0.64. Four hundered mothers gave an estimate of birth size: the sensitivity and specificity of recalled birth size for classifying low birthweight were 76% (95% CI: 50-93%) and 70% (95% CI: 65-75%), respectively. CONCLUSIONS: Mothers' recall of birthweight was not precise but in absence of other data, recall of birthweight and size may have some value in epidemiological studies in these settings.


Assuntos
Peso ao Nascer , Coleta de Dados/métodos , Rememoração Mental , Mães , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Indicadores Básicos de Saúde , Humanos , Recém-Nascido , Modelos Logísticos , Masculino , Prontuários Médicos/estatística & dados numéricos , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Uganda/epidemiologia
10.
HIV AIDS (Auckl) ; 14: 217-230, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35502347

RESUMO

Introduction: Evidence is lacking about condom use among out-of-school young people (OS-YP) on anti-retroviral therapy (ART). This study aimed to understand the factors associated with consistent condom use among OS-YP aged 15-24 years old on ART in Central Uganda. Methods: This was a quantitative descriptive cross-sectional study conducted among 357 OS-YP on ART from seven districts of Central Uganda. Interviewer-administered questionnaire was used to collect data on consistent condom use in the past 12 months from OS-YP, aged 15-24 years, who did not intend to have children in that period. Consistent condom use by participants was considered to be the routine (always) use of condoms during sexual intercourse in the past 12 months. Frequencies and percentages were used for univariate analysis, while Pearson's Chi-square was used to determine bivariate association and logistic regression analysis for multivariable association with consistent condom use, at 95% confidence level. Results: Of the 357 sexually active OS-YP on ART, 73% were females. The age range of study participants was between 15 and 24 years old (with a mean ± standard deviation of 20±3 years) where 55% were aged 20 to 24 years, while their sexual partners were aged ≥25 years, and 49% of respondents did not use condoms. Primary school education level, being employed, rural residence, and receiving ART from health facilities with a perceived adequate number of health workers were strongly associated with consistent condom use with the adjusted odds ratio (AOR) of 0.2 (95% CI 0.07-0.69) level of education; 2.12 (95% CI 1.06-4.26) employment status; 2.46 (95% CI 1.19-5.10) residence and 6.08 (95% CI 1.05-35.22) perceived level of staffing at the health facility, respectively. Conclusion: Efforts to increase consistent condom use should focus on recruiting more providers in health facilities to intensify condom use sensitization among sexually active young people on ART in the context of HIV epidemic control.

11.
Pediatr Allergy Immunol ; 22(3): 305-12, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21255083

RESUMO

BACKGROUND: Allergy is commoner in developed than in developing countries. Chronic worm infections show inverse associations with allergy, and prenatal exposures may be critical to allergy risk. OBJECTIVE: To determine whether anthelminthic treatment during pregnancy increases the risk of allergy in infancy. METHODS: A randomised, double-blind, placebo-controlled trial on treatment in pregnancy with albendazole versus placebo and praziquantel versus placebo was conducted in Uganda, with a 2 × 2 factorial design; 2507 women were enrolled; infants' allergy events were recorded prospectively. The main outcome was doctor-diagnosed infantile eczema. RESULTS: Worms were detected in 68% of women before treatment. Doctor-diagnosed infantile eczema incidence was 10.4/100 infant years. Maternal albendazole treatment was associated with a significantly increased risk of eczema [Cox HR (95% CI), p: 1.82 (1.26-2.64), 0.002]; this effect was slightly stronger among infants whose mothers had no albendazole-susceptible worms than among infants whose mothers had such worms, although this difference was not statistically significant. Praziquantel showed no effect overall but was associated with increased risk among infants of mothers with Schistosoma mansoni [2.65 (1.16-6.08), interaction p = 0.02]. In a sample of infants, skin prick test reactivity and allergen-specific IgE were both associated with doctor-diagnosed eczema, indicating atopic aetiology. Albendazole was also strongly associated with reported recurrent wheeze [1.58 (1.13-2.22), 0.008]; praziquantel showed no effect. CONCLUSIONS: The detrimental effects of treatment suggest that exposure to maternal worm infections in utero may protect against eczema and wheeze in infancy. The results for albendazole are also consistent with a direct drug effect. Further studies are required to investigate mechanisms of these effects, possible benefits of worms or worm products in primary prevention of allergy, and the possibility that routine deworming during pregnancy may promote allergic disease in the offspring.


Assuntos
Albendazol/uso terapêutico , Anti-Helmínticos/uso terapêutico , Dermatite Atópica/epidemiologia , Helmintíase/tratamento farmacológico , Praziquantel/uso terapêutico , Complicações Parasitárias na Gravidez/tratamento farmacológico , Adulto , Dermatite Atópica/diagnóstico , Método Duplo-Cego , Feminino , Helmintíase/parasitologia , Humanos , Imunoglobulina E/sangue , Incidência , Gravidez , Complicações Parasitárias na Gravidez/parasitologia , Sons Respiratórios , Testes Cutâneos , Resultado do Tratamento , Uganda , Adulto Jovem
12.
Birth Defects Res A Clin Mol Teratol ; 91(9): 857-61, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21770020

RESUMO

BACKGROUND: Data on congenital anomalies from developing countries of the sub-Saharan region are scarce. However, it is important to have comprehensive and reliable data on the description and prevalence of congenital anomalies to allow surveillance and the implementation of appropriate public health strategies for prevention and management. In this study, we describe the profile of congenital anomalies seen in a birth cohort in Entebbe, Uganda. METHODS: Congenital anomalies were defined as any structural defect present at birth. Pregnant women were recruited to the cohort between 2003 and 2005. Defects present at birth were recorded by the midwife at delivery and by physicians at the routine six-week postnatal visit and at illness-related visits until 1 year of life. The anomalies were classified by organ system according to the 10th version of the World Health Organization International Classification of Diseases (ICD-10). RESULTS: There were 180 infants with a congenital anomaly among 2365 births. The most commonly affected systems were the musculoskeletal (42.7 per 1000 births) and skin (16.1 per 1000 births). The prevalence of major anomalies was 20.3 per 1000 births; 1.7 per 1000 births for cardiac anomalies and 1.3 per 1000 births for neural system anomalies. Forty (22%) of the congenital anomalies were identified at birth, 131 (73%) at the 6-week postnatal visit, and nine (5%) at illness-related visits. CONCLUSION: Congenital anomalies are common in developing countries. Establishment of comprehensive databases for surveillance would be helpful for surveillance of effects of new exposures, for prevention, management, and health care planning.


Assuntos
Anormalidades Congênitas/classificação , Anormalidades Congênitas/epidemiologia , Anormalidades Congênitas/patologia , Método Duplo-Cego , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Gravidez , Prevalência , Uganda/epidemiologia
13.
Parasitology ; 138(12): 1499-507, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21810307

RESUMO

In 1994 and 2002, respectively, the World Health Organisation proposed that treatment for hookworm and schistosomiasis could be provided during pregnancy. It was hoped that this might have benefits for maternal anaemia, fetal growth and perinatal mortality; a beneficial effect on the infant response to immunisation was also hypothesised. Three trials have now been conducted. Two have examined the effects of benzimidazoles; one (the Entebbe Mother and Baby Study) the effects of albendazole and praziquantel. All three were conducted in settings of high prevalence but low intensity helminth infection. Results suggest that, in such settings and given adequate provision of haematinics, the benefit of routine anthelminthics during pregnancy for maternal anaemia may be small; none of the other expected benefits has yet been demonstrated. The Entebbe Mother and Baby Study found a significant adverse effect of albendazole on the incidence of infantile eczema in the whole study population, and of praziquantel on the incidence of eczema among infants of mothers with Schistosoma mansoni. Further studies are required in settings that differ in helminth species and infection intensities. Further research is required to determine whether increased rates of infantile eczema translate to long-term susceptibility to allergy, and to explore the underlying mechanisms of these effects. The risks and benefits of routine anthelminthic treatment in antenatal clinics may need to be reconsidered.


Assuntos
Anti-Helmínticos/uso terapêutico , Infecções por Uncinaria/tratamento farmacológico , Complicações Parasitárias na Gravidez/tratamento farmacológico , Esquistossomose mansoni/tratamento farmacológico , Albendazol/efeitos adversos , Albendazol/uso terapêutico , Ancylostomatoidea/efeitos dos fármacos , Anemia/parasitologia , Animais , Anti-Helmínticos/efeitos adversos , Benzimidazóis/efeitos adversos , Benzimidazóis/uso terapêutico , Peso ao Nascer/efeitos dos fármacos , Criança , Dermatite Atópica/induzido quimicamente , Método Duplo-Cego , Feminino , Humanos , Lactente , Mortalidade Perinatal , Praziquantel/efeitos adversos , Praziquantel/uso terapêutico , Gravidez , Resultado da Gravidez , Prevalência , Schistosoma mansoni/efeitos dos fármacos , Resultado do Tratamento , Uganda
14.
Trans R Soc Trop Med Hyg ; 102(4): 367-73, 2008 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18321545

RESUMO

The objectives of this study were to estimate the prevalence of atopic sensitization, and to identify common aeroallergens associated with atopic sensitization among women in Entebbe, Uganda, and to determine risk factors for atopic sensitization among those with and without a history of asthma or eczema. A case-control study was conducted within a trial of deworming in pregnancy, approximately 2 years after the intervention. Skin prick test reactivity was assessed among 20 women with a history of asthma, 25 with history of eczema and 95 controls. Overall prevalence of reactivity was estimated by adjusting for the prevalence of asthma in the whole cohort. Overall skin prick test prevalence was: any allergen 30.7%, Blomia tropicalis 10.9%, Dermatophagoides mix 16.8%, cockroach 15.8%. The prevalence of a positive skin prick test was significantly associated with a history of asthma (70% to any allergen vs. 32%, P=0.002) but not with a history of eczema (44% vs. 36%, P=0.49). Women with Mansonella perstans had significantly reduced odds for atopic sensitization (adjusted odds ratio 0.14, 95% CI 0.03-0.69); women with a history of asthma were less likely to have hookworm (adjusted odds ratio 0.24, 95% CI 0.07-0.81) but this association was weaker for women with a history of eczema. [Clinical Trial No. ISRCTN32849447].


Assuntos
Alérgenos , Hipersensibilidade Imediata/epidemiologia , Testes Cutâneos/métodos , Adolescente , Adulto , Asma/complicações , Estudos de Casos e Controles , Eczema/complicações , Feminino , Humanos , Hipersensibilidade Imediata/diagnóstico , Hipersensibilidade Imediata/etiologia , Fatores de Risco , Fatores Socioeconômicos , Uganda/epidemiologia
15.
Trials ; 15: 310, 2014 Aug 06.
Artigo em Inglês | MEDLINE | ID: mdl-25100338

RESUMO

BACKGROUND: The 'external validity' of randomized controlled trials is an important measure of quality, but is often not formally assessed. Trials concerning mass drug administration for helminth control are likely to guide public health policy and careful interpretation of their context is needed. We aimed to determine how representative participants in one such trial were of their community. We explore implications for trial interpretation and resulting public health recommendations. METHODS: The trial assessed was the Entebbe Mother and Baby Study (EMaBS), a trial of anthelminthic treatment during pregnancy and early childhood. In a novel approach for assessing external validity, we conducted a two-stage cluster sample community survey within the trial catchment area and compared characteristics of potentially-eligible community children with characteristics of children participating in the trial. RESULTS: A total of 173 children aged three to five-years-old were surveyed from 480 households. Of children surveyed, we estimated that mothers of 60% would have been eligible for recruitment, and of these, 31% had actually been enrolled. Children surveyed were compared to 199 trial children in the same age group reviewed at annual trial visits during the same time period. There were significant differences in ethnicity between the trial participants and the community children, and in socioeconomic status, with those in the trial having, on average, more educated parents and higher maternal employment. Trial children were less likely to have barefoot exposure and more likely to use insecticide-treated bed nets. There were no significant differences in numbers of reported illness events over the last year. CONCLUSIONS: The trial had not enrolled all eligible participants, and those enrolled were of higher socioeconomic status, and had lower risk of exposure to the parasitic infections targeted by the trial interventions. It is possible the trial may have underestimated the absolute effects of anthelminthic treatment during pregnancy and early childhood, although the fact that there were no differences in reported incidence of common infectious diseases (one of the primary outcomes of EMaBS) between the two groups provides reassurance. Concurrent community surveys may be an effective way to test the external validity of trials. EMABS TRIAL REGISTRATION: ISRCTN32849447, registered 22 July 2005.


Assuntos
Anti-Helmínticos/uso terapêutico , Ensaios Clínicos Controlados Aleatórios como Assunto , Pré-Escolar , Feminino , Humanos , Mães , Seleção de Pacientes , Gravidez , Classe Social , Uganda
16.
J Acquir Immune Defic Syndr ; 63(2): 228-33, 2013 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-23403859

RESUMO

BACKGROUND: Determinants of Kaposi sarcoma-associated herpesvirus (KSHV) seropositivity among children living in sub-Saharan African populations where infection is endemic are not well understood. Local environmental factors, including other infectious agents, may be key. METHODS: Within the context of a well-characterized birth cohort, we examined associations between various factors and antibodies against KSHV, measured in stored plasma samples from 1823 mother-child pairs in Entebbe, Uganda. RESULTS: Seroprevalence increased with increasing age of the child (P = 0.0003) and was higher among those with KSHV seropositive mothers than in those without (12% vs 9%; odds ratio: 1.4, 95% confidence interval: 1.1 to 2.0). It was also higher among children with HIV infection (29% vs 10%; odds ratio: 3.1, 95% confidence interval: 1.2 to 8.3) or malaria parasitemia (30% vs 10%; odds ratio: 4.1, 95% confidence interval: 2.4 to 7.0) than in children without. These associations were not explained by socioeconomic status. CONCLUSIONS: The finding that KSHV serostatus is associated with malaria parasitemia in children is novel. In a country endemic for KSHV, malaria may be a cofactor for KSHV infection or reactivation among children.


Assuntos
Anticorpos Antivirais/sangue , Herpesvirus Humano 8/imunologia , Sarcoma de Kaposi/epidemiologia , Pré-Escolar , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Humanos , Lactente , Malária/complicações , Malária/epidemiologia , Fatores de Risco , Sarcoma de Kaposi/imunologia , Sarcoma de Kaposi/virologia , Estudos Soroepidemiológicos , Uganda/epidemiologia
17.
PLoS One ; 7(12): e50325, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23236367

RESUMO

BACKGROUND: Helminth infections may modulate immune responses to unrelated pathogens and allergens; these effects may commence prenatally. We addressed the hypothesis that anthelminthic treatment in pregnancy and early childhood would improve responses to immunisation and modulate disease incidence in early childhood with both beneficial and detrimental effects. METHODS AND FINDINGS: A randomised, double-blind, placebo-controlled trial was conducted in Entebbe, Uganda [ISRCTN32849447]. In three independent randomisations, 2507 pregnant women were allocated to receive single-dose albendazole or placebo, and praziquantel or placebo; 2016 of their offspring were randomised to receive quarterly single-dose albendazole or placebo from age 15 months to 5 years. Primary outcomes were post-immunisation recall responses to BCG and tetanus antigens, and incidence of malaria, diarrhoea, and pneumonia; incidence of eczema was an important secondary outcome. Analysis was by intention-to-treat. Of 2345 live births, 1622 (69%) children remained in follow-up at age 5 years. 68% of mothers at enrolment, and 11% of five-year-olds, had helminth infections. Maternal hookworm and Schistosoma mansoni were effectively treated by albendazole and praziquantel, respectively; and childhood hookworm and Ascaris by quarterly albendazole. Incidence rates of malaria, diarrhoea, pneumonia, and eczema were 34, 65, 10 and 5 per 100 py, respectively. Albendazole during pregnancy caused an increased rate of eczema in the children (HR 1.58 (95% CI 1.15-2.17), p = 0.005). Quarterly albendazole during childhood was associated with reduced incidence of clinical malaria (HR 0.85 (95% CI 0.73-0.98), p = 0.03). There were no consistent effects of the interventions on any other outcome. CONCLUSIONS: Routine use of albendazole in pregnancy may not always be beneficial, even in tropical developing countries. By contrast, regular albendazole treatment in preschool children may have an additional benefit for malaria control where helminths and malaria are co-endemic. Given the low helminth prevalence in our children, the effect of albendazole on malaria is likely to be direct. TRIAL REGISTRATION: Current Controlled Trials ISRCTN32849447.


Assuntos
Albendazol/uso terapêutico , Anti-Helmínticos/efeitos adversos , Helmintíase/tratamento farmacológico , Complicações Parasitárias na Gravidez/tratamento farmacológico , Adulto , Pré-Escolar , Método Duplo-Cego , Eczema/epidemiologia , Eczema/imunologia , Feminino , Helmintíase/epidemiologia , Helmintíase/imunologia , Humanos , Incidência , Lactente , Masculino , Gravidez , Complicações Parasitárias na Gravidez/imunologia , Resultado do Tratamento , Uganda , Vacinação
18.
Infect Agent Cancer ; 6(1): 15, 2011 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-21962023

RESUMO

BACKGROUND: Immune modulation by parasites may influence susceptibility to bacteria and viruses. We examined the association between current parasite infections, HIV and syphilis (measured in blood or stool samples using standard methods) and antibodies against Kaposi's sarcoma herpesvirus (KSHV), measured by ELISA, in 1915 stored plasma samples from pregnant women in Entebbe, Uganda. RESULTS: Seroprevalence of KSHV was higher in women with malaria parasitaemia (73% vs 60% p = 0.01), hookworm (67% vs 56% p = 0.001) and Mansonella perstans (69% vs 59% p = 0.05); seroprevalence increased with increasing intensity of hookworm infection (p < 0.001[trend]). No associations were found for HIV, five other parasites or active syphilis. These effects were not explained by socioeconomic status or education. CONCLUSIONS: Specific parasite infections are associated with presence of antibodies against KSHV, perhaps mediated via their effect on immune function.

20.
Vaccine ; 29(2): 247-55, 2010 Dec 16.
Artigo em Inglês | MEDLINE | ID: mdl-21040693

RESUMO

Some vaccines show poor efficacy in tropical countries. Within a birth cohort in Uganda, we investigated factors that might influence responses to BCG and tetanus immunisation. Whole blood assay responses to crude culture filtrate proteins of Mycobacterium tuberculosis (cCFP)) and tetanus toxoid (TT) were examined among 1506 and 1433 one-year-olds, respectively. Maternal Mansonella perstans infection was associated with higher interleukin (IL)-10 responses to both immunogens but no reduction in gamma interferon (IFN-γ), IL-5 and IL-13 responses; other maternal helminth infections showed little effect. Tetanus immunisation during pregnancy was associated with higher infant responses to TT; maternal BCG scar (from past immunisation) with lower infant IL-5 and IL-13 responses to cCFP. IFN-γ, IL-5 and IL-13 to TT were reduced in HIV-exposed-uninfected infants; infant malaria and HIV were associated with lower IFN-γ, IL-5 and IL-13 responses to both immunogens. We conclude that maternal helminth infections are unlikely to explain poor vaccine efficacy in the tropics. Effects of maternal immunisation on infant responses to vaccines should be explored. Prevention of infant malaria and HIV could contribute to effectiveness of immunisation programmes.


Assuntos
Vacina BCG/imunologia , Toxoide Tetânico/imunologia , Adulto , Anticorpos Antibacterianos/sangue , Estudos de Coortes , Citocinas/metabolismo , Feminino , Infecções por HIV/imunologia , Humanos , Lactente , Recém-Nascido , Linfócitos/imunologia , Malária/imunologia , Masculino , Mansonelose/imunologia , Mycobacterium tuberculosis/imunologia , Gravidez , Uganda
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