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1.
Proc Natl Acad Sci U S A ; 112(3): 845-50, 2015 Jan 20.
Artículo en Inglés | MEDLINE | ID: mdl-25561558

RESUMEN

In sub-Saharan Africans, maternal mortality is unacceptably high, with >400 deaths per 100,000 births compared with <10 deaths per 100,000 births in Europeans. One-third of the deaths are caused by pre-eclampsia, a syndrome arising from defective placentation. Controlling placentation are maternal natural killer (NK) cells that use killer-cell immunoglobulin-like receptor (KIR) to recognize the fetal HLA-C molecules on invading trophoblast. We analyzed genetic polymorphisms of maternal KIR and fetal HLA-C in 484 normal and 254 pre-eclamptic pregnancies at Mulago Hospital, Kampala, Uganda. The combination of maternal KIR AA genotypes and fetal HLA-C alleles encoding the C2 epitope associates with pre-eclampsia [P = 0.0318, odds ratio (OR) = 1.49]. The KIR genes associated with protection are located in centromeric KIR B regions that are unique to sub-Saharan African populations and contain the KIR2DS5 and KIR2DL1 genes (P = 0.0095, OR = 0.59). By contrast, telomeric KIR B genes protect Europeans against pre-eclampsia. Thus, different KIR B regions protect sub-Saharan Africans and Europeans from pre-eclampsia, whereas in both populations, the KIR AA genotype is a risk factor for the syndrome. These results emphasize the importance of undertaking genetic studies of pregnancy disorders in African populations with the potential to provide biological insights not available from studies restricted to European populations.


Asunto(s)
Población Negra/genética , Centrómero , Preeclampsia/prevención & control , Receptores KIR/genética , Población Blanca/genética , Femenino , Humanos , Preeclampsia/genética , Embarazo
2.
Clin Infect Dis ; 65(4): 544-550, 2017 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-29017265

RESUMEN

BACKGROUND: Urinary tract infections (UTIs) are one of the most common bacterial infections in women. During pregnancy physiological changes, like frequency, mimic UTI symptoms, and therefore bacteriological cultures are needed to confirm the diagnosis. However, in developing countries antibiotic therapy is commonly initiated without culture confirmation. METHODS: We investigated the prevalence of bacteriuria among pregnant women with and without UTI symptoms in Uganda. In total 2 562 urine samples were evaluated with nitrite and leukocyte esterase tests, using urine culture and/or dipslide with species identification as reference. RESULTS: The prevalence of culture-proven UTI among pregnant women with UTI symptoms was 4%. Since treatment is initiated based only on the presence of symptoms, 96% were erroneously given antibiotics. Further, there is a high prevalence of resistance to commonly used antibiotics, with 18 % ESBL and 36 % multidrug resistant Escherichia coli strains. Nitrite, leukocyte esterase tests, and urine microscopy alone were of poor diagnostic value. Using dipslide, gynecologists and nurses, not trained in microbiology, were mostly able to identify E. coli and negative cultures. Mixed Gram-negative flora, suggesting fecal contamination was, however, in the majority of cases interpreted as a single pathogenic bacterium and would have resulted in antibiotic treatment. CONCLUSIONS: To prevent excessive use of antibiotics, dipslide possibly supported by a combination of nitrite and leukocyte esterase tests can be used. Trained frontline health care professionals correctly diagnosed E. coli UTI and negative urine cultures, which would help preventing antibiotic misuse. In addition, regular screening for antibiotic resistance would improve correct treatment.


Asunto(s)
Uso Excesivo de los Servicios de Salud/estadística & datos numéricos , Complicaciones Infecciosas del Embarazo , Infecciones Urinarias , Adolescente , Adulto , Antibacterianos , Bacteriuria/diagnóstico , Bacteriuria/tratamiento farmacológico , Bacteriuria/epidemiología , Escherichia coli , Infecciones por Escherichia coli/diagnóstico , Infecciones por Escherichia coli/tratamiento farmacológico , Infecciones por Escherichia coli/epidemiología , Femenino , Humanos , Pruebas de Sensibilidad Microbiana , Embarazo , Complicaciones Infecciosas del Embarazo/diagnóstico , Complicaciones Infecciosas del Embarazo/tratamiento farmacológico , Complicaciones Infecciosas del Embarazo/epidemiología , Prevalencia , Uganda , Infecciones Urinarias/diagnóstico , Infecciones Urinarias/tratamiento farmacológico , Infecciones Urinarias/epidemiología , Adulto Joven
3.
Reprod Health ; 14(1): 31, 2017 Mar 03.
Artículo en Inglés | MEDLINE | ID: mdl-28253893

RESUMEN

BACKGROUND: Acyclovir (ACV) given to HSV-2 positive women after 36 weeks reduces adverse outcomes but its benefit at lower gestation was undocumented. We determined the effect of oral acyclovir administered from 28 to 36 weeks on premature rupture of membranes (PROM) primarily and preterm delivery risk. METHODS: This was a randomized, double-blind placebo-controlled trial among 200 HSV-2 positive pregnant women at 28 weeks of gestation at Mulago Hospital, Uganda. Participants were assigned randomly (1:1) to take either acyclovir 400 mg orally twice daily (intervention) or placebo (control) from 28 to 36 weeks. Both arms received acyclovir after 36 weeks until delivery. Development of Pre-PROM by 36 weeks and preterm delivery were outcomes. RESULTS: One hundred women were randomised to acyclovir and 100 to placebo arms between January 2014 and February 2015. There was tendency towards reduction of incidence of PROM at 36 weeks but this was not statistically significant (4.0% versus 10.0%; RR 0.35; 95% 0.11-1.10) in the acyclovir and placebo arms respectively. However, there was a significant reduction in the incidence of preterm delivery (11.1% versus 23.5%; RR 0.41; 95% 0.20-0.85) in the acyclovir and placebo arms respectively. CONCLUSIONS: Oral acyclovir given to HSV-2 positive pregnant women from 28 to 36 weeks reduced incidence of preterm delivery but did not significantly reduce incidence of pre-PROM. TRIAL REGISTRATION: www.pactr.org, PACTR201311000558197 .


Asunto(s)
Aciclovir/administración & dosificación , Parto Obstétrico , Rotura Prematura de Membranas Fetales/prevención & control , Herpes Genital/tratamiento farmacológico , Herpesvirus Humano 2/fisiología , Nacimiento Prematuro/prevención & control , Adulto , Antivirales/administración & dosificación , Método Doble Ciego , Femenino , Rotura Prematura de Membranas Fetales/etiología , Edad Gestacional , Herpes Genital/complicaciones , Herpes Genital/virología , Humanos , Recién Nacido , Madres , Embarazo , Nacimiento Prematuro/etiología , Uganda
4.
Oncology ; 90(6): 356-62, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27104645

RESUMEN

BACKGROUND: Although East Africa, like other countries in sub-Saharan Africa, has a lower incidence of breast cancer than high-income countries, the disease rate is rising steeply in Africa; it has nearly tripled in the past few decades in Uganda. There is a paucity of studies that have examined the relation between reproductive factors and breast cancer risk factors in Ugandan women. OBJECTIVE: To determine breast cancer risk factors among indigenous Ugandan women. METHODS: This is a hospital-based unmatched case-control study. Interviews were conducted between 2011 and 2012 using structured questionnaires. Patients with histology-proven breast cancer were recruited over a 2-year period. Logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS: A total of 350 women were recruited; 113 were cases and 237 were controls. The mean age was 47.5 years (SD 14) for the cases and 45.5 years (SD 14.1) for the controls. The odds of breast cancer risk seemed lower for those who breastfed (adjusted OR = 0.04; 95% CI: 0.01, 0.18). There was no significance for early age at first full-term birth (adjusted OR = 1.96; 95% CI: 0.97, 3.96; p = 0.061), and urban residence carried no increased odds of breast cancer either (p = 0.201). CONCLUSION: Breastfeeding seems to be associated with reduced odds of breast cancer.


Asunto(s)
Neoplasias de la Mama/epidemiología , Adulto , Anciano , Lactancia Materna , Neoplasias de la Mama/etiología , Neoplasias de la Mama/prevención & control , Estudios de Casos y Controles , Femenino , Humanos , Modelos Logísticos , Edad Materna , Persona de Mediana Edad , Oportunidad Relativa , Parto , Historia Reproductiva , Medición de Riesgo , Factores de Riesgo , Centros de Atención Terciaria/estadística & datos numéricos , Uganda/epidemiología
5.
BMC Pregnancy Childbirth ; 16(1): 211, 2016 08 08.
Artículo en Inglés | MEDLINE | ID: mdl-27503214

RESUMEN

BACKGROUND: Postpartum haemorrhage (PPH) remains the leading cause of maternal morbidity and mortality worldwide. The main strategy for preventing PPH is the use of uterotonic drugs given prophylactically by skilled health workers. However, in settings where many women still deliver at home without skilled attendants, uterotonics are often inaccessible. In such cases, women and their caregivers need to recognize PPH promptly so, as to seek expert care. For this reason, it is important to understand how women and their caregivers recognize PPH, as well as the actions they undertake to prevent and treat PPH in home births. Such knowledge can also inform programs aiming to make uterotonics accessible at the community level. METHODS: Between April and June 2012, a phenomenological study was carried out in a rural Ugandan district involving 15 in-depth interviews. Respondents were purposively sampled and included six women who had delivered at home in the past year and nine traditional birth attendants (TBAs). The interviews explored how PPH was recognized, its perceived causes, and the practices that respondents used in order to prevent or treat it. Phenomenological descriptive methodology was used to analyse the data. RESULTS: Bleeding after childbirth was considered to be a normal cleansing process, which if stopped or inhibited would lead to negative health consequences to the mother. Respondents used a range of criteria to recognize PPH: rate of blood flow, amount of blood (equivalent to two clenched fists), fainting, feeling thirsty, collapsing or losing consciousness immediately after birth. As a group, respondents seemed to correctly identify women at risk of PPH (those with twin pregnancies, high parity or prolonged labour), but many individuals did not know all the reasons. Respondents used cold drink, uterine massage and traditional medicine to treat PPH. CONCLUSION: The community viewed bleeding after childbirth as a normal process and their methods of determining excessive bleeding are imprecise and varied. This opens the door for intervention for reducing delays in the home diagnosis of PPH. This includes increasing awareness among TBAs, women and their families about the risk of death due to excessive bleeding in the immediate postpartum period.


Asunto(s)
Actitud del Personal de Salud , Parto Domiciliario/psicología , Partería , Hemorragia Posparto/psicología , Periodo Posparto/psicología , Adulto , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Embarazo , Investigación Cualitativa , Población Rural , Uganda
6.
Reprod Health ; 13: 38, 2016 Apr 14.
Artículo en Inglés | MEDLINE | ID: mdl-27080710

RESUMEN

BACKGROUND: Globally, postpartum haemorrhage (PPH) remains a leading cause of maternal deaths. However in many low and middle income countries, there is scarcity of information on magnitude of and risk factors for PPH (blood loss of 500 ml or more). It is important to understand the relative contributions of different risk factors for PPH. We assessed the incidence of, and risk factors for postpartum hemorrhage among rural women in Uganda. METHODS: Between March 2013 and March 2014, a prospective cohort study was conducted at six health facilities in Uganda. Women were administered a questionnaire to ascertain risk factors for postpartum hemorrhage, defined as a blood loss of 500 mls or more, and assessed using a calibrated under-buttocks drape at childbirth. We constructed two separate multivariable logistic regression models for the variables associated with PPH. Model 1 included all deliveries (vaginal and cesarean sections). Model 2 analysis was restricted to vaginal deliveries. In both models, we adjusted for clustering at facility level. RESULTS: Among the 1188 women, the overall incidence of postpartum hemorrhage was 9.0%, (95% confidence interval [CI]: 7.5-10.6%) and of severe postpartum hemorrhage (1000 mls or more) was 1.2%, (95% CI 0.6-2.0%). Most (1157 [97.4%]) women received a uterotonic after childbirth for postpartum hemorrhage prophylaxis. Risk factors for postpartum hemorrhage among all deliveries (model 1) were: cesarean section delivery (adjusted odds ratio [aOR] 7.54; 95% CI 4.11-13.81); multiple pregnancy (aOR 2.26; 95% CI 0.58-8.79); foetal macrosomia ≥4000 g (aOR 2.18; 95% CI 1.11-4.29); and HIV positive sero-status (aOR 1.93; 95% CI 1.06-3.50). Risk factors among vaginal deliveries only, were similar in direction and magnitude as in model 1, namely: multiple pregnancy, (aOR 7.66; 95% CI 1.81-32.34); macrosomia, (aOR 2.14; 95% CI1.02-4.47); and HIV positive sero-status (aOR 2.26; 95% CI 1.20-4.25). CONCLUSION: The incidence of postpartum hemorrhage was high in our setting despite use of uterotonics. The risk factors identified could be addressed by extra vigilance during labour and preparedness for PPH management in all women giving birth.


Asunto(s)
Hemorragia Posparto/epidemiología , Salud Rural , Adolescente , Adulto , Cesárea/efectos adversos , Estudios de Cohortes , Femenino , Macrosomía Fetal/fisiopatología , Seropositividad para VIH/fisiopatología , Humanos , Incidencia , Modelos Logísticos , Oxitócicos/uso terapéutico , Hemorragia Posparto/etiología , Hemorragia Posparto/fisiopatología , Hemorragia Posparto/prevención & control , Embarazo , Complicaciones Infecciosas del Embarazo/fisiopatología , Embarazo Múltiple , Prevalencia , Estudios Prospectivos , Factores de Riesgo , Índice de Severidad de la Enfermedad , Uganda/epidemiología , Adulto Joven
7.
BMC Pregnancy Childbirth ; 15: 315, 2015 Nov 26.
Artículo en Inglés | MEDLINE | ID: mdl-26610333

RESUMEN

BACKGROUND: Oral misoprostol, administered by trained health-workers is effective and safe for preventing postpartum haemorrhage (PPH). There is interest in expanding administration of misoprostol by non-health workers, including task-shifting to pregnant women themselves. However, the use of misoprostol for preventing PPH in home-births remains controversial, due to the limited evidence to support self-administration or leaving it in the hands of non-health workers. This study aimed to determine if antenatally distributing misoprostol to pregnant women to self-administer at home birth reduces PPH. METHODS: Between February 2013 and March 2014, we conducted a stepped-wedge cluster-randomized trial in six health facilities in Central Uganda. Women at 28+ weeks of gestation attending antenatal care were eligible. Women in the control-arm received the standard-of-care; while the intervention-arm were offered 600 mcg of misoprostol to swallow immediately after birth of baby, when oxytocin was not available. The primary outcome (PPH) was a drop in postpartum maternal haemoglobin (Hb) by ≥ 2 g/dl, lower than the prenatal Hb. Analysis was by intention-to-treat at the cluster level and we used a paired t-tests to assess whether the mean difference between the control and intervention groups was statistically significant. RESULTS: 97% (2466/2545) of eligible women consented to participate; 1430 and 1036 in the control and intervention arms respectively. Two thousand fifty-seven of the participants were successfully followed up and 271 (13.2%) delivered outside a health facility. There was no significant difference between the study group in number of women who received a uterotonic at birth (control 80.4% vs intervention 91.4%, mean difference = -11.0%, 95% confidence interval [CI] -25.7% to 3.6%, p = 0.11). No woman took misoprostol before their baby's birth. Shivering and fever were 14.9% in the control arm compared to 22.2% in the intervention arm (mean difference = -7.2%, 95% CI -11.1% to -3.7%), p = 0.005). There was a slight, but non-significant, reduction in the percentage of women with Hb drop ≥ 2g/dl from 18.5% in the control arm to 11.4% in the intervention arm (mean difference = 7.1%, 95% CI -3.1% to 17.3%, p = 0.14). Similarly, there was no significant difference between the groups in the primary outcome in the women who delivered at home (control 9.6% vs intervention 14.5%, mean difference -4.9; 95% CI -12.7 to 2.9), p = 0.17). CONCLUSION: This study was unable to detect a significant reduction in PPH following the antenatal distribution of misoprostol. The study was registered with Pan-African Clinical Trials Network ( PACTR201303000459148, on 19/11/2012).


Asunto(s)
Misoprostol/administración & dosificación , Oxitócicos/administración & dosificación , Hemorragia Posparto/prevención & control , Periodo Posparto/efectos de los fármacos , Administración Oral , Adulto , Análisis por Conglomerados , Parto Obstétrico/métodos , Esquema de Medicación , Femenino , Fiebre/epidemiología , Fiebre/etiología , Hemoglobinas/efectos de los fármacos , Parto Domiciliario , Humanos , Misoprostol/efectos adversos , Oxitócicos/efectos adversos , Periodo Posparto/sangre , Embarazo , Autoadministración , Tiritona , Uganda , Adulto Joven
8.
BMC Pregnancy Childbirth ; 15: 219, 2015 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-26370443

RESUMEN

BACKGROUND: 600 mcg of oral misoprostol reduces the incidence of postpartum haemorrhage (PPH), but in previous research this medication has been administered by health workers. It is unclear whether it is also safe and effective when self-administered by women. METHODS: This placebo-controlled, double-blind randomised trial enrolled consenting women of at least 34 weeks gestation, recruited over a 2-month period in Mbale District, Eastern Uganda. Participants had their haemoglobin measured antenatally and were given either 600 mcg misoprostol or placebo to take home and use immediately after birth in the event of delivery at home. The primary clinical outcome was the incidence of fall in haemoglobin of over 20% in home births followed-up within 5 days. RESULTS: 748 women were randomised to either misoprostol (374) or placebo (374). Of those enrolled, 57% delivered at a health facility and 43% delivered at home. 82% of all medicine packs were retrieved at postnatal follow-up and 97% of women delivering at home reported self-administration of the medicine. Two women in the misoprostol group took the study medication antenatally without adverse effects. There was no significant difference between the study groups in the drop of maternal haemoglobin by >20% (misoprostol 9.4% vs placebo 7.5%, risk ratio 1.11, 95% confidence interval 0.717 to 1.719). There was significantly more fever and shivering in the misoprostol group, but women found the medication highly acceptable. CONCLUSIONS: This study has shown that antenatally distributed, self-administered misoprostol can be appropriately taken by study participants. The rarity of the primary outcome means that a very large sample size would be required to demonstrate clinical effectiveness. TRIAL REGISTRATION: This study was registered with the ISRCTN Register (ISRCTN70408620).


Asunto(s)
Parto Domiciliario/estadística & datos numéricos , Misoprostol/administración & dosificación , Oxitócicos/administración & dosificación , Hemorragia Posparto/prevención & control , Adulto , Parto Obstétrico/métodos , Método Doble Ciego , Femenino , Edad Gestacional , Hemoglobinas/análisis , Humanos , Incidencia , Hemorragia Posparto/epidemiología , Embarazo , Población Rural , Autoadministración , Uganda/epidemiología
9.
World J Surg Oncol ; 13: 220, 2015 Jul 19.
Artículo en Inglés | MEDLINE | ID: mdl-26187151

RESUMEN

BACKGROUND: Cancer of the breast is a major health burden and the most common cancer among women worldwide. Though its incidence is fourfold greater in high-income countries, in sharp contrast, mortality rates are greatest among the low-income countries. Early detection linked to appropriate treatment is the most effective strategy to improve survival. The purpose of this study therefore was to establish the survival experiences of women with breast cancer at a Ugandan hospital. METHODS: This study is an observational analytical study. It involved 262 women during the periods 2004 to 2007 and 2010 to 2012. Kaplan Meier method and Cox regression were used to calculate breast cancer mortality and cumulative survival experiences. RESULTS: Sixty-three out of 262 (23%) deaths were observed; mean age was 45 years, and 91 observations ended on or before follow-up. Luminal B median survival was months. The 5-year cumulative survival was 51.8 %. There were no stage I and II deaths. There were no differences in survival by phenotype adjusted for age, but there were differences for stage IV (p=0.05). CONCLUSIONS: The cumulative 5-year survival was 51.8 %. The burden of advanced disease and associated mortality were high, and a significant number of patients were lost to follow-up after their first contact.


Asunto(s)
Neoplasias de la Mama/mortalidad , Mortalidad Hospitalaria/tendencias , África del Sur del Sahara/epidemiología , Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/patología , Causas de Muerte , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Incidencia , Persona de Mediana Edad , Estadificación de Neoplasias , Pronóstico , Factores de Riesgo , Tasa de Supervivencia , Centros de Atención Terciaria , Carga Tumoral
10.
Sex Transm Infect ; 90(2): 161-4, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24226098

RESUMEN

OBJECTIVES: Several recent studies suggest that intermediate vaginal flora (IVF) is associated with similar adverse health outcomes as bacterial vaginosis (BV). Yet, it is still unknown if IVF and BV share the same correlates. We conducted a cross-sectional and exploratory analysis of data from women screened prior to enrolment in a microbicide trial to estimate BV and IVF prevalence and examine their respective correlates. METHODS: Participants were interviewed, examined and provided blood and genital samples for the diagnosis of IVF and BV (using Nugent score) and other reproductive tract infections. Polytomous logistic regressions were used in estimating respective ORs of IVF and BV, in relation to each potential risk factor. RESULTS: Among 1367 women, BV and IVF prevalences were 47.6% (95% CI 45.0% to 50.3%) and 19.2% (95% CI 17.1% to 21.2%), respectively. Multivariate polytomous analysis of IVF and BV showed that they were generally associated with the same factors. The respective adjusted ORs were for HIV 1.98 (95% CI 1.37 to 2.86) and 1.62 (95% CI 1.20 to 2.20) (p=0.2248), for gonorrhoea 1.25 (95% CI 0.64 to 2.4) and 2.01 (95% CI 1.19 to 3.49) (p=0.0906), for trichomoniasis 3.26 (95% CI 1.71 to 6.31) and 2.39 (95% CI 1.37 to 4.33) (p=0.2630), for candidiasis 0.52 (95% CI 0.36 to 0.75) and 0.59 (95% CI 0.44 to 0.78) (p=0.5288), and for hormonal contraception 0.65 (95% CI 0.40 to 1.04) and 0.62 (95% CI 0.43 to 0.90) (p=0.8819). In addition, the association between vaginal flora abnormalities and factors such as younger age, HIV, gonorrhoea trichomoniasis and candidiasis were modified by the study site (all p for interaction ≤0.05). CONCLUSIONS: IVF has almost the same correlates as BV. The relationship between some factors and vaginal flora abnormalities may be site-specific.


Asunto(s)
Candidiasis/microbiología , Gonorrea/microbiología , Infecciones por VIH/microbiología , Trabajadores Sexuales , Vagina/microbiología , Vaginosis Bacteriana/microbiología , Adulto , África , Factores de Edad , Antiinfecciosos/uso terapéutico , Candidiasis/epidemiología , Candidiasis/inmunología , Estudios Transversales , Femenino , Gonorrea/epidemiología , Gonorrea/inmunología , Infecciones por VIH/epidemiología , Infecciones por VIH/inmunología , Humanos , India , Prevalencia , Factores de Riesgo , Vagina/inmunología , Vaginosis Bacteriana/epidemiología , Vaginosis Bacteriana/inmunología
11.
Am J Obstet Gynecol ; 210(6): 510-520.e1, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24184340

RESUMEN

Maternal and associated neonatal mortality rates in sub-Saharan Africa remain unacceptably high. In Mulago Hospital (Kampala, Uganda), 2 major causes of maternal death are preeclampsia and obstructed labor and their complications, conditions occurring at the extremes of the birthweight spectrum, a situation encapsulated as the obstetric dilemma. We have questioned whether the prevalence of these disorders occurs more frequently in indigenous African women and those with African ancestry elsewhere in the world by reviewing available literature. We conclude that these women are at greater risk of preeclampsia than other racial groups. At least part of this susceptibility seems independent of socioeconomic status and likely is due to biological or genetic factors. Evidence for a genetic contribution to preeclampsia is discussed. We go on to propose that the obstetric dilemma in humans is responsible for this situation and discuss how parturition and birthweight are subject to stabilizing selection. Other data we present also suggest that there are particularly strong evolutionary selective pressures operating during pregnancy and delivery in Africans. There is much greater genetic diversity and less linkage disequilibrium in Africa, and the genes responsible for regulating birthweight and placentation may therefore be easier to define than in non-African cohorts. Inclusion of African women into research on preeclampsia is an essential component in tackling this major disparity of maternal health.


Asunto(s)
Población Negra/genética , Mortalidad Materna/etnología , Complicaciones del Trabajo de Parto/etnología , Parto/etnología , Preeclampsia/etnología , Complicaciones del Embarazo/etnología , África/etnología , Población Negra/estadística & datos numéricos , Femenino , Humanos , Internacionalidad , Preeclampsia/genética , Embarazo , Complicaciones del Embarazo/genética , Uganda
12.
Int J Gynecol Cancer ; 24(3): 576-85, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24557438

RESUMEN

OBJECTIVE: This study evaluates the feasibility and performance of careHPV, a novel human papillomavirus (HPV) DNA test, when used for screening women for cervical cancer in low-resource settings. METHODS AND MATERIALS: Clinician-collected (cervical) and self-collected (vaginal) careHPV specimens, visual inspection with acetic acid (VIA), and Papanicolaou test were evaluated among 16,951 eligible women in India, Nicaragua, and Uganda. Women with positive screening results received colposcopy and histologic follow-up as indicated. The positivity of each screening method was calculated overall, by site, and age. In addition, the clinical performance of each screening test was determined for detection of cervical intraepithelial neoplasia (CIN) grade 2 (CIN2+) and CIN grade 3. RESULTS: Moderate or severe dysplasia or cancer (taken together as CIN2+) was diagnosed in 286 women. The positivity rate ranged between 2.4% to 19.6% for vaginal careHPV, 2.9% to 20.2% for cervical careHPV, 5.5% to 34.4% for VIA, and 2.8% to 51.8% for Papanicolaou test. Cervical careHPV was the most sensitive for CIN2+ (81.5%; 95% confidence interval [CI], 76.5-85.8) and CIN grade 3 (85.3%; 95% CI, 78.6-90.6) at all sites, followed by vaginal careHPV (69.6% and 71.3%, respectively). The sensitivity of VIA ranged from 21.9% to 73.6% and Papanicolaou test from 40.7% to 73.7%. The pooled specificities of cervical careHPV, vaginal careHPV, VIA, and Papanicolaou test were 91.6%, 90.6%, 84.2%, and 87.7%, respectively. CONCLUSIONS: careHPV performed well in large multicountry demonstration studies conducted in resource-limited settings that have not previously been conducted this type of testing; its sensitivity using cervical samples or vaginal self-collected samples was better than VIA or Papanicolaou test. The feasibility of using careHPV in self-collected vaginal samples opens the possibility of increasing coverage and early detection in resource-constrained areas.


Asunto(s)
Alphapapillomavirus/aislamiento & purificación , ADN Viral/análisis , Países en Desarrollo/estadística & datos numéricos , Displasia del Cuello del Útero/diagnóstico , Neoplasias del Cuello Uterino/diagnóstico , Ácido Acético , Adulto , Estudios de Factibilidad , Femenino , Humanos , Prueba de Papanicolaou , Neoplasias del Cuello Uterino/virología , Frotis Vaginal , Displasia del Cuello del Útero/virología
13.
BMC Public Health ; 14: 155, 2014 Feb 12.
Artículo en Inglés | MEDLINE | ID: mdl-24520841

RESUMEN

BACKGROUND: Vaccination against Human Papilloma Virus (HPV) before sexual debut has been recommended by WHO as a primary prevention strategy against cervical cancer. In Uganda, vaccination against HPV started as a demonstration project among young girls in Nakasongola; and Ibanda districts. Studies have suggested that vaccination against HPV could result in risky sexual behavior and increase the risk of early sexual debut.This study was done to compare the sexual behavior of HPV vaccinated and non vaccinated adolescent girls in two neighboring districts in Uganda; and to assess whether HPV vaccination had any influence on sexual behavior of vaccinated adolescent girls. METHODS: This was an unmatched comparative study, which used both qualitative and quantitative study methods. It was carried out among 400 primary school girls aged 12 to 15 years in the districts of Nakasongola (vaccinated) and Luwero (non vaccinated). Quantitative data was collected using a questionnaire while qualitative data was obtained using focus group discussions and key informant interviews. The main outcome measure was the number of sexually active girls in each group. RESULTS: Of the 400 girls, 8 volunteered information that they were sexually active, 5(2.5%) from Luwero (non vaccinated) and 3 (1.5%) from Nakasongola (vaccinated), but there was no statistically significant difference between the 2 groups. HPV vaccination was not significantly associated with being sexually active. CONCLUSION: There was no significant difference in sexual behavior between vaccinated and non vaccinated girls.


Asunto(s)
Conducta del Adolescente , Infecciones por Papillomavirus/prevención & control , Vacunas contra Papillomavirus/administración & dosificación , Conducta Sexual , Enfermedades de Transmisión Sexual/prevención & control , Adolescente , Niño , Femenino , Humanos , Encuestas y Cuestionarios , Uganda
14.
Afr J Reprod Health ; 18(3): 67-77, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25438511

RESUMEN

This study describes the fertility intentions and discusses the potential reproductive health needs of post-natal HIV-infected Ugandan women. HIV-infected mothers attending post-natal services in Kampala, Uganda participated in this cross-sectional study using structured interviewer administered questionnaires. Descriptive statistics and logistic regression models were used to identify predictors of desire for more children. Among 403 participants, 35% desired more children. Of these, 25% wanted another child within 2 years and 75% within 3 years or more. In multivariable analyses, believing that one's partners wanted more children (OR = 2.44; 95% CI = 1.30, 4.59) was associated with the desire for future children while having more living children was negatively associated with the desire for future children (OR = 0.08; 95% CI = 0.02, 0.39). A minority of women desired future pregnancies, and most wanted to delay pregnancy for 3 years. These women are in need of family planning (FP) methods to meet stated desires to delay or end future pregnancies. Perceived partner desire for children also impacts on women's fertility intentions, highlighting the importance of engaging men during the post-natal period.67-77)


Asunto(s)
Fertilidad/fisiología , Seropositividad para VIH , VIH/inmunología , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Atención Posnatal , Conducta Reproductiva/fisiología , Adulto , Estudios Transversales , Servicios de Planificación Familiar/organización & administración , Femenino , Seropositividad para VIH/epidemiología , Seropositividad para VIH/psicología , Seropositividad para VIH/transmisión , Humanos , Intención , Masculino , Evaluación de Necesidades , Atención Posnatal/métodos , Atención Posnatal/psicología , Embarazo , Parejas Sexuales/psicología , Tiempo para Quedar Embarazada , Uganda/epidemiología
15.
Immunogenetics ; 65(11): 765-75, 2013 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-23974321

RESUMEN

Killer cell immunoglobulin-like receptor (KIR) genes are expressed by natural killer cells and encoded by a family of genes exhibiting considerable haplotypic and allelic variation. HLA-C molecules, the dominant ligands for KIR, are present in all individuals and are discriminated by two KIR epitopes, C1 and C2. We studied the frequencies of KIR genes and HLA-C1 and C2 groups in a large cohort (n = 492) from Kampala, Uganda, East Africa and compared our findings with published data from other populations in sub-Saharan Africa (SSA) and several European populations. We find considerably more KIR diversity and weaker linkage disequilibrium in SSA compared to the European populations and describe several novel KIR genotypes. C1 and C2 frequencies were similar to other SSA populations with a higher frequency of the C2 epitope (54.9 %) compared to Europe (average 39.7 %). Analysis of this large cohort from Uganda in the context of other African populations reveals variations in KIR and HLA-C1 and C2 that are consistent with migrations within Africa and potential selection pressures on these genes. Our results will help understand how KIR/HLA-C interactions contribute to resistance to pathogens and reproductive success.


Asunto(s)
Genética de Población , Antígenos HLA-C/genética , Haplotipos/genética , Receptores KIR/genética , África del Sur del Sahara/epidemiología , ADN de Neoplasias/genética , Genotipo , Humanos , Ligandos , Desequilibrio de Ligamiento , Reacción en Cadena de la Polimerasa , Polimorfismo Conformacional Retorcido-Simple , Uganda/epidemiología , Reino Unido/epidemiología
16.
BMC Infect Dis ; 13: 208, 2013 May 08.
Artículo en Inglés | MEDLINE | ID: mdl-23657072

RESUMEN

BACKGROUND: Data on risk factors of recurrent bacterial vaginosis (RBV) are still scarce. We used data from female sex workers (FSW) participating in a randomized controlled microbicide trial to examine predictors of BV recurrence. METHODS: Trial's participants with at least an episode of BV which was treated and/or followed by a negative BV result and at least one subsequent visit offering BV testing were included in the analysis. Behavioural and medical data were collected monthly while laboratory testing for STI and genital tract infections were performed quarterly. The Andersen-Gill proportional hazards model was used to determine predictors of BV recurrence both in bivariate and multivariate analyses. RESULTS: 440 women were included and the incidence rate for RBV was 20.8 recurrences/100 person-months (95% confidence interval (CI) =18.1-23.4). In the multivariate analysis controlling for the study site, recent vaginal cleansing as reported at baseline with adjusted hazard-ratio (aHR)=1.30, 95% CI = 1.02-1.64 increased the risk of BV recurrence, whereas consistent condom use (CCU) with the primary partner (aHR=0.68, 95% CI=0.49-0.93) and vaginal candidiasis (aHR=0.70, 95% CI=0.53-0.93), both treated as time-dependent variables, were associated with decreased risk of RBV. CONCLUSION: This study confirms the importance of counselling high-risk women with RBV about the adverse effects of vaginal cleansing and the protective effects of condom use with all types of partners for the prevention of sexually transmitted infections, including BV. More prospective studies on risk factors of BV recurrence are warranted. TRIAL REGISTRATION: Trial registration: NCT00153777.


Asunto(s)
Trabajadores Sexuales/estadística & datos numéricos , Conducta Sexual/estadística & datos numéricos , Vaginosis Bacteriana/epidemiología , Adulto , Análisis de Varianza , Condones , Femenino , Humanos , Incidencia , Estudios Longitudinales , Ensayos Clínicos Controlados Aleatorios como Asunto , Recurrencia , Factores de Riesgo , Trabajadores Sexuales/psicología , Conducta Sexual/psicología , Ducha Vaginal , Vaginosis Bacteriana/psicología
17.
BMC Psychiatry ; 13: 131, 2013 May 08.
Artículo en Inglés | MEDLINE | ID: mdl-23656795

RESUMEN

BACKGROUND: We explored how family psychoeducation could be made culturally sensitive for postpartum mothers with psychotic illness in a Ugandan setting. METHODS: A qualitative multi-method approach using an already existing family psychoeducation Tool Kit was adapted to incorporate lay perceptions related to psychotic illness in the postpartum period in this Ugandan setting. The participants consisted of postpartum women with psychotic illness, caregivers/family members, psychiatric nurses and psychologists. A modified version of a family psychoeducation programme for postpartum women with psychosis was formulated and pilot-tested. RESULTS: Modifications in the standard family psychoeducation programme were both in the process and content of family psychoeducation. Under process, effective communication, cultural background, appropriate dress, involving only one family member, low literacy, and flexibility in timekeeping were raised. The theme of content yielded the incorporation of lay perceptions of mental illness, family planning, income generating, and an emphasis of premorbid and morbid personalities of the patients. CONCLUSION: The basic principles and assumptions underlying psychoeducation remained the same. Changes made in the process and content of family psychoeducation reflected the social, cultural and gender reality of the population.


Asunto(s)
Familia , Madres/psicología , Periodo Posparto/psicología , Trastornos Psicóticos/psicología , Adulto , Actitud Frente a la Salud , Cultura , Práctica Clínica Basada en la Evidencia , Estudios de Factibilidad , Femenino , Humanos , Educación del Paciente como Asunto , Trastornos Psicóticos/terapia , Investigación Cualitativa , Uganda
18.
J Clin Microbiol ; 50(11): 3569-74, 2012 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-22915606

RESUMEN

Urinary tract infection (UTI) is common during pregnancy and can be associated with negative outcomes for both the mother and fetus. Increased risk of infection among these patients has been attributed to physiological changes, and less focus has been placed on Escherichia coli, the most frequent causative agent. We investigated the virulence properties of isolates causing UTI in pregnant women in Sweden, Uganda, and Vietnam, as well as nonpregnant women in Sweden. Although phylogenetic group B2 was the most prevalent group, more Ugandan isolates belonged to group B1, associated with commensal strains, than isolates from other countries. Adherence to and invasion of urothelial cells, key events in the infection process, were low among group B1 isolates from pregnant Swedish women compared to those from nonpregnant patients. Similar levels of adherence and invasion were seen in isolates from pregnant women in Uganda and Vietnam. More biofilm was formed by group B2 isolates than by those belonging to group B1 and by Ugandan group B2 isolates than by those from pregnant Swedish and Vietnamese women. The antigen 43a-encoding gene, fluA(CFT073), was most prevalent among Ugandan isolates. Expression of the biofilm components, curli and cellulose, was low among all isolates. Multidrug resistance was more common among isolates from Uganda and Vietnam than among those from Swedish patients. We suggest that while bacterial virulence properties play an important role in UTI during pregnancy, physiological changes in the host may contribute more to the incidence of infection caused by less virulent E. coli.


Asunto(s)
Infecciones por Escherichia coli/microbiología , Complicaciones Infecciosas del Embarazo/microbiología , Escherichia coli Uropatógena/aislamiento & purificación , Factores de Virulencia/genética , Adolescente , Adulto , Adhesión Bacteriana , Biopelículas/crecimiento & desarrollo , Farmacorresistencia Bacteriana Múltiple , Células Epiteliales/microbiología , Infecciones por Escherichia coli/epidemiología , Femenino , Humanos , Persona de Mediana Edad , Tipificación Molecular , Filogenia , Embarazo , Complicaciones Infecciosas del Embarazo/epidemiología , Suecia/epidemiología , Uganda/epidemiología , Escherichia coli Uropatógena/clasificación , Escherichia coli Uropatógena/genética , Escherichia coli Uropatógena/fisiología , Vietnam/epidemiología , Adulto Joven
19.
Sex Transm Infect ; 88(7): 545-51, 2012 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-22628663

RESUMEN

OBJECTIVE: The authors analysed data from female sex workers screened prior to participation in a microbicide trial to examine the association between prevalent vaginal flora abnormalities and HIV infection, with special emphasis on the role of the intermediate vaginal flora (IVF) in this association. METHODS: Data from the Kampala, Cotonou, Chennai and Mudhol/Jamkhandi sites were analysed. Participants were interviewed and provided blood for HIV and syphilis antibody testing, genital samples for the diagnosis of vaginal flora abnormalities (using Nugent score) and other reproductive tract infections. Log-binomial regression was used to estimate the HIV prevalence ratio (PR) in relation to IVF and bacterial vaginosis (BV). RESULTS: Among 1367 women, BV, IVF and HIV prevalences were 47.6% (95% CI=45.0% to 50.3%), 19.2% (95% CI=17.1% to 21.2%) and 27.0% (95% CI=24.6% to 29.3%), respectively. In multivariate analysis, adjusting for study site, age, years of education, occupation, female sterilisation, oral sex, past history of sexually transmitted infection, gonorrhoea and candidiasis, IVF was significantly associated with HIV infection with a PR similar to that of BV (adjusted PR=1.56 (95% CI=1.22 to 1.98) and 1.48 (95% CI=1.20 to 1.84), respectively). CONCLUSIONS: Though the cross-sectional design of the study precludes directional interpretation of the findings, the data do suggest that IVF may be as important as BV in HIV acquisition. The authors recommend prospective research to better understand the association between IVF and HIV acquisition.


Asunto(s)
Infecciones por VIH/complicaciones , Infecciones por VIH/epidemiología , Vagina/microbiología , Vaginosis Bacteriana/complicaciones , Vaginosis Bacteriana/epidemiología , Adulto , Comorbilidad , Estudios Transversales , Femenino , Humanos , Prevalencia , Ensayos Clínicos Controlados Aleatorios como Asunto , Trabajadores Sexuales , Adulto Joven
20.
Malar J ; 11: 310, 2012 Sep 05.
Artículo en Inglés | MEDLINE | ID: mdl-22950456

RESUMEN

BACKGROUND: Malaria in pregnancy is a major health problem that can cause maternal anaemia, stillbirth, spontaneous abortion, low birth weight and intra-uterine stunting. The WHO recommends use of sulphadoxine-pyrimethamine (SP) for intermittent preventive treatment of malaria during pregnancy (IPTp) in endemic areas. Towards monitoring and assessing IPTp coverage in the population, the Roll Back Malaria Partnership recommends the use of self-reported data. The aim of this study was to assess the validity of self-reported IPTp by testing for sulphadoxine in maternal blood at delivery. METHODS: Two hundred and four pregnant women were consented and enrolled in a cross-sectional study in Mulago National Referral Hospital in Kampala Uganda. - Participants who reported a history of taking sulpha-containing drugs like co-trimoxazole , those who were not sure of dates relating to last menstrual period or who took IPTp within the first 20 weeks of gestation were excluded from the study. Data on demographic characteristics, obstetric history, and delivery outcome were collected. At birth, maternal venous blood was taken off aseptically and used to make thick blood smears for malaria parasites and plasma for determining sulphadoxine using high performance liquid chromatography (HPLC). RESULTS: Of 120 participants who self reported to have used IPTp, 35 (29.2%) tested positive for sulphadoxine by HPLC, while 63 (75%) of 84 patients who reported not having used IPTp tested negative for sulphadoxine. Participants possessing post-primary education were more likely to have reported using IPTp. The low agreement (kappa coefficient = 0.037) between self-report and actual presence of the drug in the blood casts doubt on the validity of self-reported data in estimating IPTp coverage. CONCLUSIONS: The results of this study question the accuracy of self-reported data in estimating IPTp coverage in the population. More studies on validity of self reported data are recommended. Since the validity of IPTp self reports is vital for guiding policy on malaria control in pregnancy, ways should be sought to improve accuracy of the information from such reports.


Asunto(s)
Antimaláricos/administración & dosificación , Utilización de Medicamentos/estadística & datos numéricos , Malaria/prevención & control , Cumplimiento de la Medicación/estadística & datos numéricos , Complicaciones Infecciosas del Embarazo/prevención & control , Pirimetamina/administración & dosificación , Automedicación/métodos , Sulfadoxina/administración & dosificación , Adolescente , Adulto , Antimaláricos/análisis , Sangre/parasitología , Quimioprevención/métodos , Cromatografía Líquida de Alta Presión , Estudios Transversales , Combinación de Medicamentos , Femenino , Humanos , Plasma/química , Embarazo , Pirimetamina/análisis , Sulfadoxina/análisis , Uganda , Adulto Joven
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