Prevalence and determinants of moderate-to-severe anaemia in the third trimester of pregnancy: a multicenter cross-sectional study in Lagos, Nigeria.

The high burden of anaemia during pregnancy underscores the urgent need to gain a comprehensive understanding of the factors contributing to its widespread occurrence. Our study assessed the prevalence and the trends of moderate-to-severe anaemia (MSA) in late pregnancy (28 to 36 weeks) and then investigated the key determinants driving this prevalence among women in Lagos, Nigeria. We conducted a secondary data analysis involving 1216 women enrolled in the Predict-PPH study between January and March 2023. We employed a multivariate binary logistic regression model with a backward stepwise selection approach to identify significant predictors of MSA. The study revealed a 14.5% prevalence of MSA during pregnancy. Independent predictors of MSA included having given birth to two or more children (adjusted odds ratio = 1.46, 95% confidence interval: 1.03-2.07), having a maternal body mass index (BMI) of 28 kg/m2 or higher (adjusted odds ratio = 1.84, 95% confidence interval: 1.29-2.61), having less than tertiary education (adjusted odds ratio = 1.51, 95% confidence interval: 1.08-2.11), and being unemployed (adjusted odds ratio = 1.97, 95% confidence interval: 1.19-3.26). It is crucial for pregnant women, particularly those with higher parities and elevated BMI, to be monitored regularly for anaemia and its consequences during their antenatal care. Additionally, addressing the link between low education, unemployment, and anaemia necessitates comprehensive strategies that empower women in terms of education and economic status to enhance the overall well-being of individuals and communities, ultimately reducing the prevalence of anaemia and associated health issues in pregnancy.

Prenatal anaemia and risk of postpartum haemorrhage: a cohort analysis of data from the Predict-PPH study.

BACKGROUND: Most previous clinical studies investigating the connection between prenatal anaemia and postpartum haemorrhage (PPH) have reported conflicting results. OBJECTIVES: We examined the association between maternal prenatal anaemia and the risk of PPH in a large cohort of healthy pregnant women in five health institutions in Lagos, Southwest Nigeria. METHODS: This was a prospective cohort analysis of data from the Predict-PPH study that was conducted between January and June 2023. The study enrolled n = 1222 healthy pregnant women giving birth in five hospitals in Lagos, Nigeria. The study outcome, WHO-defined PPH, is postpartum blood loss of at least 500 milliliters. We used a multivariable logistic regression model with a backward stepwise conditional approach to examine the association between prenatal anaemia of increasing severity and PPH while adjusting for confounding factors. RESULTS: Of the 1222 women recruited to the Predict-PPH study between January and June 2023, 1189 (97·3%) had complete outcome data. Up to 570 (46.6%) of the enrolled women had prenatal anaemia while 442 (37.2%) of those with complete follow-up data had WHO-defined PPH. After controlling for potential confounding factors, maternal prenatal anaemia was independently associated with PPH (adjusted odds ratio = 1.37, 95% confidence interval: 1.05-1.79). However, on the elimination of interaction effects of coexisting uterine fibroids and mode of delivery on this association, a sensitivity analysis yielded a lack of significant association between prenatal anaemia and PPH (adjusted odds ratio = 1.27, 95% confidence interval: 0.99-1.64). We also recorded no statistically significant difference in the median postpartum blood loss in women across the different categories of anaemia (P = 0.131). CONCLUSION: Our study revealed that prenatal anaemia was not significantly associated with PPH. These findings challenge the previously held belief of a suspected link between maternal anaemia and PPH. This unique evidence contrary to most previous studies suggests that other factors beyond prenatal anaemia may contribute more significantly to the occurrence of PPH. This highlights the importance of comprehensive assessment and consideration of various maternal health factors in predicting and preventing this life-threatening obstetric complication.

Development of antepartum risk prediction model for postpartum hemorrhage in Lagos, Nigeria: A prospective cohort study (Predict-PPH study).

OBJECTIVES: There is currently a limited ability to accurately identify women at risk of postpartum hemorrhage (PPH). We conducted the "Predict-PPH" study to develop and evaluate an antepartum prediction model and its derived risk-scoring system. METHODS: This was a prospective cohort study of healthy pregnant women who registered and gave birth in five hospitals in Lagos, Nigeria, from January to June 2023. Maternal antepartum characteristics were compared between women with and without PPH. A predictive multivariable model was estimated using binary logistic regression with a backward stepwise approach eliminating variables when P was greater than 0.10. Statistically significant associations in the final model were reported when P was less than 0.05. RESULTS: The prevalence of PPH in the enrolled cohort was 37.1%. Independent predictors of PPH such as maternal obesity (adjusted odds ratio [aOR] 3.25, 95% confidence interval [CI] 2.47-4.26), maternal anemia (aOR 1.32, 95% CI 1.02-1.72), previous history of cesarean delivery (aOR 4.24, 95% CI 3.13-5.73), and previous PPH (aOR 2.65, 95% CI 1.07-6.56) were incorporated to develop a risk-scoring system. The area under the receiver operating characteristic curve (AUROC) for the prediction model and risk scoring system was 0.72 (95% CI 0.69-0.75). CONCLUSION: We recorded a relatively high prevalence of PPH. Our model performance was satisfactory in identifying women at risk of PPH. Therefore, the derived risk-scoring system could be a useful tool to screen and identify pregnant women at risk of PPH during their routine antenatal assessment for birth preparedness and complication readiness.

Maternal tumour necrosis factor-alpha levels in preeclamptic pregnancies in Lagos, South-West Nigeria.

OBJECTIVE: This study aimed to assess the association between maternal serum levels of TNF-α and preeclampsia. METHODS: An analytical cross-sectional study involving 45 women diagnosed with preeclampsia and 45 healthy normotensive pregnant women matched for age, and gestational age at enrolment. Venous samples were collected from each participant after informed consent was obtained. Serum TNF-α level was determined using the human TNF-α competitive enzyme-linked immunosorbent assay (ELISA) technique with ELISA Kit. Hypothesis testing was done using the Chi-square test for categorical variables, the independent samples t-test and the Kruskal-Wallis test for numerical variables. All significances were reported at P < 0.05. RESULTS: The median concentrations of TNF-α in women with preeclampsia of varying severity were significantly higher than those with normotensive pregnancies (P = 0.001). The median level of TNF-α was also significantly higher in patients with severe features of preeclampsia than in those without. The estimated cut-off levels of serum TNF-α were 15.6 ng/mL and 26.4 ng/mL respectively for the development and severity of preeclampsia. Maternal serum TNF-α level in preeclamptic patients is strongly correlated with systolic and diastolic BP, serum uric acid and alkaline phosphatase levels, proteinuria, and platelet count (P < 0.05). CONCLUSION: We can infer from this study that increased maternal serum levels of TNF-α may play a significant role in the pathogenesis of preeclampsia. We recommend further validation of these findings with a more robust longitudinal characterization of maternal serum TNF-α profiles in pregnancy through a well-designed prospective cohort study.

Predictors of Survival Outcomes After Primary Treatment of Epithelial Ovarian Cancer in Lagos, Nigeria.

PURPOSE: This study was designed to investigate the clinicopathologic predictors of progression-free survival (PFS) and overall survival (OS) in patients with epithelial ovarian cancer (EOC) following primary treatment in Lagos, Nigeria. MATERIALS AND METHODS: Using data from a retrospective cohort of 126 patients who received treatment for EOC between 2010 and 2018, we identified 83 patients with a complete clinical record for subsequent data analysis. Patients' demographics and updated 2-year follow-up status were abstracted from medical records. Kaplan-Meier survival curves were compared using the log-rank test, and Cox proportional hazard models were used for multivariate analysis to identify independent predictors of survivals following treatment in EOC patients. RESULTS: The median PFS and OS were 12 and 24 months, respectively. After adjusting for covariates in the multivariate analysis, younger age ≤ 55 years (hazard ratio [HR] = 0.40; 95% CI, 0.22 to 0.74; P = .01) and International Federation of Gynecology and Obstetrics (FIGO) stage I/II (HR = 0.02; 95% CI, 0.01 to 0.08; P = .01) were independent predictors of improved PFS, whereas being premenopausal (HR = 2.34; 95% CI, 1.16 to 4.75; P = .02) was an independent predictor of reduced OS after 2-year follow-up. CONCLUSION: PFS could be predicted by the age and FIGO stage of the disease, whereas menopausal status was predictive of OS in patients with EOC. This knowledge should form the basis for counseling patients with ovarian cancer during their primary treatment and lend support to the importance of aggressive follow-up and monitoring for the older, premenopausal patients and those with an advanced stage of epithelial ovarian cancer. However, robust longitudinal research should be carried out to provide additional reliable insight to this information.

Predictors, barriers and motivating factors for human papillomavirus vaccination and testing as preventive measures for cervical cancer: A study of urban women in Lagos, Nigeria.

Human papillomavirus (HPV) vaccination and HPV based cervical screening are scientifically proven ways to prevent and eliminate cervical cancer (CC). Unfortunately, these measures are yet to be widely accepted or utilized. Our study aimed to explore the individual-related factors that predict HPV vaccination and testing, its motivating factors and barriers among urban women in Lagos, Nigeria. This was a descriptive cross-sectional study among 208 consenting women who attended a community health awareness program in Surulere, Lagos, Nigeria, in September 2019. Structured questionnaires were interviewer administered and analysis was done using SPSS version 23. The uptake of HPV vaccination and testing was 29.0% and 3.0% respectively. Being employed [adjusted odds ratio (AOR) = 60.45, CI = 10.64-343.46, P < 0.001] and unmarried (AOR = 33.33, CI = 12.5-100.0, P < 0.001) predicted HPV vaccination uptake while being unmarried was the only predictor of uptake of HPV testing [crude odds ratio (COR) = 7.69, CI = 1.01-100.00, P = 0.039]. Knowing someone with CC (AOR = 21.64, CI = 4.87-96.16, P < 0.001) and being unmarried (AOR = 5.56, CI = 1.45-20.00, P = 0.012) predicted increased willingness to be vaccinated. Being unmarried (AOR = 5.26, CI = 1.89-14.29, P = 0.002) and knowing someone with CC (AOR = 6.41, CI = 2.68-15.33, P < 0.001) predicted willingness to do HPV testing. Recommendation by healthcare provider (HCP), friends/relatives and media were major motivators for HPV vaccination & testing while fear, cost, no recommendation by HCP, inaccessibility & lack of awareness were major barriers. There is need to urgently address these identified factors that affect HPV vaccination and testing in order to improve its acceptability and uptake rate in our environment.

Effects of selenium supplementation on pregnancy outcomes and disease progression in HIV-infected pregnant women in Lagos: A randomized controlled trial.

OBJECTIVE: To examine the effects of selenium supplementation on pregnancy outcomes and disease progression among HIV-infected pregnant women in Lagos. METHODS: A randomized, placebo-controlled trial conducted among HIV-positive pregnant women between September 2018 and August 2019. At enrollment, 90 women were randomly assigned into each treatment arm to receive either a daily tablet of 200 µg elemental selenium or a placebo. Relevant participants' sociodemographic and clinical data were collected at enrollment and delivery. RESULTS: Women in the selenium arm had a significantly lower risk of preterm delivery (relative risk [RR] 0.32, 95% confidence interval [CI] 0.11-0.96) and a non-significant reduction in the risk of delivering term neonates with a low delivery weight (RR 0.24, 95% CI 0.05-1.19). Supplemental selenium does not increase the risk of perinatal death and adverse drug events. CONCLUSION: The study reported a beneficial effect of prenatal selenium supplements on the risk of preterm delivery with no further reduction in risk among HIV-infected women who used the supplements for more than 14 weeks. TRIAL REGISTRATION: Pan African Clinical Trial Registry (PACTR201809756724274).

Impact of mobile technologies on cervical cancer screening practices in Lagos, Nigeria (mHealth-Cervix): Protocol for a randomised controlled trial.

Background: Incidence and mortality from cervical cancer have remained high due to many obstacles facing the implementation of organized screening programs in resource-constrained countries such as Nigeria. The application of mobile technologies (mHealth) to health services delivery has the potential to reduce inequalities, empower patients to control their health, and improve the cost-effectiveness of health care delivery. Aim: To assess the efficacy of mobile technology intervention on Pap test screening adherence compared to a control condition and also determine the factors affecting the uptake of Pap smear screening practices among women in Lagos. Methods: This is a multi-center randomized controlled trial that will involve women aged 25 to 65 years attending the General Outpatient clinics of the two tertiary health institutions in Lagos, Nigeria between April and December 2020. At baseline, a total of 200 National Health Insurance Scheme (NHIS) enrollees will be randomized to either a text message arm or usual care (control) arm. The primary outcome is the completion of a Pap smear within 6 months of enrolment in the study. The associations between any two groups of continuous variables will be tested using the independent sample t-test (normal distribution) or the Mann-Whitney U test (skewed data) and that of two groups of categorical variables with Chi-square X 2 or Fisher's exact test where appropriate. Using binary logistic regression model, we will adjust for age and other relevant sociodemographic and clinical variables and adherence to Pap test screening. Statistical significance will be defined as P-value less than 0.05. Discussion: The mHealth-Cervix study will evaluate the impact of mobile technologies on cervical cancer screening practices in Lagos, Nigeria as a way of contributing to the reduction in the wide disparities in cervical cancer incidence through early detection facilitated using health promotion to improve Pap smear screening adherence. Registration: PACTR202002753354517 13/02/2020.

Association between maternal serum homocysteine concentrations in early pregnancy and adverse pregnancy outcomes.

Background: There is still conflicting evidence on the extent to which maternal hyperhomocysteinemia is a risk factor for pregnancy complications. Aims: The study aimed to investigate the impact of elevated maternal homocysteine concentrations on adverse pregnancy outcomes among Nigerian women in Lagos. Materials and Methods: This was a prospective cohort study conducted at the Lagos University Teaching Hospital, Idi-Araba, Lagos, Nigeria. Participants were enrolled during the first trimester of pregnancy following which relevant data were obtained by the interview. Fasting blood samples were collected for the measurement of maternal homocysteine concentration using the enzyme-linked immunosorbent assay method. Pregnancy outcomes and complications were obtained by abstracting the antenatal, delivery, and newborn medical records. Preterm births, low-birth weight (LBW), and antepartum fetal death were used as confirmatory outcome variables in the final analysis. Descriptive statistics for all data were computed using SPSS version 22.0. The associations between the variables were tested and multivariate analyses were used to study the effects of the major baseline characteristics on the pregnancy outcome. P < 0.05 was considered statistically significant. Conclusions: The prevalence of hyperhomocysteinemia among mothers in Lagos was relatively low. The associations between hyperhomocysteinemia and adverse pregnancy outcomes could have implications in future for the prevention of these adverse outcomes. Results: Hyperhomocysteinemia was recorded in 41 (24.6%) patients. Women with a high homocysteine concentration and those with a normal homocysteine level did not differ significantly in terms of age (P = 0.684), level of education (P = 0.866), and parity (P = 0.647). Women with hyperhomocysteinemia had an approximately twelve-fold higher risk of preterm birth (P = 0.001) and a ten-fold higher risk of delivering a term neonate with LBW (P = 0.004), but had no risk of antepartum fetal death (P = 0.118) compared to women with a normal homocysteine concentration.

RésuméHistorique: Il existe encore des preuves contradictoires sur la mesure dans laquelle l'hyperhomocysteinemia maternel est un facteur de risque de complications de grossesse. Objectifs: L'étude visait à étudier l'impact des concentrations élevées d'homocystéine maternelle sur les résultats défavorables de la grossesse chez les Femmes nigérianes à Lagos. Matériel et Méthodes: Il s'agissait d'une étude de cohorte prospective menée à l'Hôpital universitaire d'enseignement de Lagos, Idi-Araba, Lagos, Nigeria. Les participants ont été inscrits au cours du premier trimestre de la grossesse, après quoi les données pertinentes ont été obtenues par l'entrevue. Des échantillons de sang à jeun ont été prélevés pour la mesure de la concentration maternelle d'homocystéine utilisant le méthode d'essais immunosorbent. Les résultats et les complications de grossesse ont été obtenus en reprochant le prénatal, l'accouchement, et le médical nouveau-né medical Dossiers. Les naissances prématurées, le faible poids à la naissance (LBW) et la mort fœtale antepartum ont été utilisés comme variables de résultats confirmatoires dans l'analyse finale. Les statistiques descriptives pour toutes les données ont été calculées à l'aide de la version 22.0 du SPSS. Les associations entre les variables ont été testées et multivariées ont été utilisées pour étudier les effets des principales caractéristiques de base sur les résultats de la grossesse. P 0,05 a été considéré statistiquement Important. Résultats: Hyperhomocysteinemia a été enregistré dans 41 (24,6%) Patients. Les femmes à forte concentration d'homocystéine et celles qui un niveau normal d'homocystéine n'a pas différé significativement en termes d'âge (P - 0.684), niveau d'éducation (P - 0.866), et parité (P - 0.647). Femmes l'hyperhomocysteinemia présentait un risque environ douze fois plus élevé de naissance prématurée (P - 0,001) et un risque dix fois plus élevé d'accouchement un terme nouveau-né avec LBW (P - 0,004), mais n'avait aucun risque de mort fœtale antepartum (P - 0,118) par rapport aux femmes ayant une homocystéine normale Concentration. Conclusions: La prévalence de l'hyperhomocysteinemia chez les mères à Lagos était relativement faible. Les associations entre L'hyperhomocysteinemia et les résultats défavorables de grossesse pourraient avoir des implications à l'avenir pour la prévention de ces résultats défavorables.