Marked variability in institutional deliveries and neonatal outcomes during the COVID-19 lockdown in Nigeria.

BACKGROUND: The coronavirus disease 2019 (COVID-19) pandemic and the interventions to mitigate its spread impacted access to healthcare, including hospital births and newborn care. This study evaluated the impact of COVID-19 lockdown measures on newborn service utilization in Nigeria. METHODS: The records of women who delivered in hospitals and babies admitted to neonatal wards were retrospectively reviewed before (March 2019-February 2020) and during (March 2020-February 2021) the COVID-19 pandemic lockdown in selected facilities in Nigeria. RESULTS: There was a nationwide reduction in institutional deliveries during the COVID-19 lockdown period in Nigeria, with 14 444 before and 11 723 during the lockdown-a decrease of 18.8%. The number of preterm admissions decreased during the lockdown period (30.6% during lockdown vs 32.6% pre-lockdown), but the percentage of outborn preterm admissions remained unchanged. Newborn admissions varied between zones with no consistent pattern. Although neonatal jaundice and prematurity remained the most common reasons for admission, severe perinatal asphyxia increased by nearly 50%. Neonatal mortality was significantly higher during the COVID-19 lockdown compared with pre-lockdown (110.6/1000 [11.1%] vs 91.4/1000 [9.1%], respectively; p=0.01). The odds of a newborn dying were about four times higher if delivered outside the facility during the lockdown (p<0.001). CONCLUSIONS: The COVID-19 lockdown had markedly deleterious effects on healthcare seeking for deliveries and neonatal care that varied between zones with no consistent pattern.

Strategies to improve healthcare services for patients with sickle cell disease in Nigeria: The perspectives of stakeholders.

Background: Sickle cell disease (SCD) continues to pose physical and psychosocial burdens to patients, caregivers and health workers. Stakeholder engagement in the processes of policy making and implementation is increasingly becoming the cornerstone of best practices in healthcare. Aim and Objectives: To engage stakeholders with a view to assessing the knowledge of SCD; ascertain the challenges associated with accessibility and affordability of healthcare services; improve the quality of care, and thereby effect behavioral change through increasing attendance and follow-up of patients in the clinics. Methodology: A Stakeholders' Engagement meeting organized by the Sickle Pan Africa Research Consortium Nigeria Network (SPARC-NEt) was attended by patients, caregivers and members of patient support groups, healthcare providers and management/policymakers. The engagement was through PowerPoint presentations, structured questionnaires and an interactive session. The structured questionnaire assessed the knowledge of stakeholders about SCD; the quality of healthcare services; challenges with access and affordability; and SCD-related government policies. Results: Three hundred and twelve stakeholders attended the engagement meeting. Of the 133 that participated in the study, medical workers were the most represented. The majority had good knowledge of what causes SCD (96.2%) and the best place to get help during SCD crisis (98.5%). However, knowledge of the specific preventive measures of SCD and its crisis was not optimal. In terms of the role of community engagement and education, only about one-quarter of the study participants, 34 (25.6%) knew about their positive role in reducing the prevalence of SCD and alleviating SCD crises. Challenges identified include inadequate healthcare personnel and facilities, delay in obtaining laboratory results, long waiting time in the clinic, poor communication, absence of holistic consultation, uncoordinated healthcare services, high cost of care, ignorance, non-prioritization of SCD by government, lack of multisectoral collaboration and partnership with NGOs and international organizations. Strategies proffered to improve healthcare services include, community/stakeholder engagement and health education, sickle cell daycare services, access to a willing and dedicated multidisciplinary workforce, collaboration with support groups and government policies and programs. Conclusion: There is need for regular stakeholder engagement to improve access to healthcare services for SCD patients in Nigeria.

COVID-19 Pandemic Response and Adaptations by International Community Access to Child Health (ICATCH) Projects in Low- and Middle-Income Countries.

Background. The health personnel in low/low and middle-income countries have faced significant challenges during the COVID-19 pandemic. The International Community Access to Child Health (ICATCH) grants support locally initiated projects in those countries. The aim of this study was to highlight how the challenges countered by grant project teams continuing their projects and demonstrating their skills to adapt to an increasingly difficult environment. Methods. This was a mixed methodology study for which data were obtained from the evaluation of annual reports submitted by the projects. The annual reports review comprised of answers to questions on whether project objectives were met, problems or barriers encountered, and reviewer feedback in the form of specific concerns or recommendations. The reports were analyzed both quantitatively and qualitatively. Results. A total of 34 (92%) of annual reports were included with 17 (94%) received in 2020 and 17 (89%) in 2021. Compared to 2020, in 2021 the projects that indicated meeting objectives increased by more than half from 29% to 58%. Over one third of the projects encountered barriers in both years. The percentage of projects with major concerns decreased by almost 2/3 in 2021 while unexpected expenses decreased by 1/3. Four themes emerged from the qualitative analysis: Concerns over COVID-19, Barriers to accomplishing project goals, Positivity around adaptations, and Despair over lack of ability to overcome challenges. Conclusions. ICATCH funded projects demonstrated resiliency and adaptations to meet program objectives despite the challenges posed by the COVID-19 pandemic demonstrating greater success in 2021.

The voices of children and young people during COVID-19: A critical review of methods.

AIM: Critically review research methods used to elicit children and young people's views and experiences in the first year of COVID-19, using an ethical and child rights lens. METHODS: A systematic search of peer-reviewed literature on children and young people's perspectives and experiences of COVID-19. LEGEND (Let Evidence Guide Every New Decision) tools were applied to assess the quality of included studies. The critical review methodology addressed four ethical parameters: (1) Duty of care; (2) Children and young people's consent; (3) Communication of findings; and (4) Reflexivity. RESULTS: Two phases of searches identified 8131 studies; 27 studies were included for final analysis, representing 43,877 children and young people's views. Most studies were from high-income countries. Three major themes emerged: (a) Whose voices are heard; (b) How are children and young people heard; and (c) How do researchers engage in reflexivity and ethical practice? Online surveys of children and young people from middle-class backgrounds dominated the research during COVID-19. Three studies actively involved children and young people in the research process; two documented a rights-based framework. There was limited attention paid to some ethical issues, particularly the lack of inclusion of children and young people in research processes. CONCLUSION: There are equity gaps in accessing the experiences of children and young people from disadvantaged settings. Most children and young people were not involved in shaping research methods by soliciting their voices.

Limited resources restrict the provision of adequate neonatal respiratory care in the countries of Africa.

AIM: Over two thirds of newborn deaths occur in Africa and South Asia, and respiratory failure is a major contributor of these deaths. The exact availability of continuous positive airway pressure (CPAP) and surfactant in Africa is unknown. The aim of this study was to describe the availability of newborn respiratory care treatments in the countries of Africa. METHODS: Surveys, in English, French and Portuguese, were sent to neonatal leaders in all 48 continental countries and the two islands with populations over 1 million. RESULTS: Forty-nine (98%) countries responded. Twenty-one countries reported less than 50 paediatricians, and 12 countries had no neonatologists. Speciality neonatal nursing was recognised in 57% of countries. Most units were able to provide supplemental oxygen. CPAP was available in 63% and 67% of the most well-equipped government and private hospitals. Surfactant was available in 33% and 39% of the most well-equipped public and private hospitals, respectively. Availability of CPAP and surfactant was greatly reduced in smaller cities. Continuous oxygen saturation monitoring was only available in 33% of countries. CONCLUSION: The availability of proven life-saving interventions in Africa is inadequate. There is a need to sustainably improve availability and use of these interventions.

Cost implication of CPAP use in low resource settings, surmounting the oxygen administration challenge.

PURPOSE: Newborn respiratory support using Bubble Continuous positive airway pressure (bCPAP) has become acceptable in Nigeria as many centers are increasingly reporting its usefulness. There is increasing access to CPAP devices although the use of 100% oxygen for bCPAP administration is on the rise as oxygen/air blenders are not commonly available or insufficient. The cost of oxygen has become a significant contributor to hospital bills. The oxygen concentrator driven bCPAP device with blending capacity is expected to save lives and reduce cost of care. OBJECTIVE: To compare the cost saving benefit of the use of oxygen concentrator bCPAP devices for CPAP administration to oxygen based devices in a resource limited setting. METHODS: This prospective cross sectional study was done between February and December 2019. The oxygen use by CPAP devices-Improvised (IbCPAP), Fisher and Paykel and T-piece were quantified, costed, documented and compared with the same duration of use of concentrator CPAP-Diamedica. RESULTS: CPAP services was accessed by 357 babies, 154 males and 203 females of GA range from 22 to 42 weeks and Birthweights range from 264 to 4400 grams. The main indication for CPAP was respiratory distress syndrome 201(56.3%). Oxygen supply were by oxygen pipeline 250 (70%), cylinders 39 (10.9%), concentrator CPAP 44 (12.3%) mixed source 24 (6.7%). Mean duration on the CPAP devices was 5.4 days, mean cost ₦37,645 ($104) or ₦6,971 ($20)/day, highest with IbCPAP, non-existent with concentrator bCPAP. CONCLUSION: The high running cost implication of CPAP use in low resource settings could deter transitioning to quality devices hence the need for non-oxygen dependent devices.

Epidemiology of community-acquired acute kidney injury in children as seen in an emergency room of Tertiary Hospital in South-South Nigeria.

Acute kidney injury (AKI) is an abrupt or rapid decline in renal function as evidenced by a rapid rise in serum creatinine (SCr) or decrease in urine output. AKI occurs in children. The aim of the study is to document the epidemiology of AKI in our setting. This was a prospective cross-sectional observational study of all the admissions at the children emergency room of Federal Medical Center in Asaba, Delta State. A diagnosis of community-acquired AKI was made using the pRIFLE criteria if there was a 25% decrease in estimated creatinine clearance from the premorbid baseline (if known) or assumed baseline of 100 mL/min/1.73 m2 and/or urine output <0.5 mL/kg/h for >8 h within the 48 h of admission. There were 404 admissions during the period and those with AKI were 58, giving an incidence rate of 14.4 cases per 100 children aged between >1 month and 16 years. The mean age of the subjects with AKI was 35.7 months. Subjects with AKI stages R (risk), I (injury), and F (failure) were, respectively, 44.8%, 39.7%, and 8.6%. The most common causes were acute gastroenteritis (36.2%), complicated malaria (10.3%), and primary renal disease (10.3%). Age group and sickle cell anemia predicted AKI in these subjects. For the outcome of the AKI, two (3.4%) died, while 55 (96.6%) subjects were discharged alive. The level of SCr within 48 h of admission predicted the outcome of AKI. The prevalence of AKI is high, gastroenteritis being the most common etiology.

Societal awareness on neonatal hyperbilirubinemia: A systematic review and meta-analysis.

Early recognition of neonatal hyperbilirubinemia is essential for prevention of bilirubin neurotoxicity and its long-term sequelae. High rates of home delivery in low- and middle-income countries (LMICs) as well as early discharge post-delivery (within 24hours) make community surveillance for neonatal hyperbilirubinemia highly important. Here, we performed a literature review to estimate the level of societal awareness of neonatal hyperbilirubinemia. We searched several databases for studies assessing the knowledge and awareness of neonatal hyperbilirubinemia. We retrieved 211 citations from 206 databases with five being in the grey literature. 52 selected articles were further reviewed. Data from these studies were then analyzed using Stata software (Statacorp® LLC Texas USA). We found that the pooled estimate of societal awareness of neonatal hyperbilirubinemia was 67% (95% confidence interval [CI]: 60, 74). There however was a publication bias (Begg test: P ≤ 0.01; Egger P = 0.06). Studies that scored or graded knowledge reported lower estimates [adjusted odds ratio (aOR) = -0.17; 95% CI: -0.32-0.02; P = 0.03]. Hospital location was an important determinant of awareness of complications [aOR = 0.30; 95% CI: 0.30-0.57; P = 0.03]. We therefore concluded that there is a significant need to improve societal awareness of neonatal hyperbilirubinemia.

Implementing bubble continuous positive airway pressure in a lower middle-income country: a Nigerian experience.

Bubble CPAP (bCPAP) is used for respiratory distress (RD) in neonates. The leading causes of neonatal mortality can lead to severe RD. Many neonatal deaths are preventable using evidence-based interventions like bCPAP as part of a comprehensive approach. The study aimed to assess the implementation of a multi-center, comprehensive hospital-based bCPAP program in a low-middle-income country using a low-cost bCPAP device. Seven established hospitals in three Nigerian States were selected using purposive sampling. A respiratory support program was developed and implemented using the Pumani® bCPAP. Neonates <28 days old with severe RD, birth weight >1000g and breathing spontaneously, were eligible. The program lasted 22 months. Focus group discussions and in-depth interviews of healthcare workers and hospital administrators were used in program assessment. Content analysis of qualitative data completed. The staff reported that the bCPAP device was easy to use and effective. All staff reported comfort in eligible patient identification, effective set up and bCPAP administration. All study sites experienced varying degrees of electric power interruption and oxygen availability and affordability. Staff training, staffing disruptions, data collection challenges and use of improvised bCPAP contributed to low enrollment. Advocacy, direct program support, and innovation using locally available resources improved enrollment. Professional organization collaboration, competency-based training and peer mentoring contributed to program success. Thorough pre-program assessment, with comprehensive understanding of all aspects of the existing system within the local context which are likely to impact the introduction of a new program is important to implementation success.

The scope and extent of exogenous surfactant utilization in Nigerian health care facilities: benefits of its regular use to outcome of premature babies.

Background: Surfactant replacement therapy (SRT) is the standard of care in developed countries. Poor access to surfactant limits its use in low resource settings. The extent of its use and the effect of its regular use on the preterm in such settings is unknown.Objective: This study assessed the extent of exogenous surfactant utilization in Nigerian tertiary care facilities and the benefits of its regular use to the preterm population.Methods: A two-phase cross-sectional study design evaluated the response from a respondent administered structured questionnaire addressed to health care providers from 54 centers and a targeted assessment of the outcome of the regular use of exogenous surfactant in a tertiary care facility from January 2014 to December 2016.Results: SRT was available in 16.7% of 54 units evaluated nationally; three (33.3%) were located in south-south and south-west respectively, 2 (22.2%) in southeast and one (11.1%) in north-central regions of the country. Twenty-two percent of the units were private centers, 77.8% were public tertiary care facilities. Four (44.4%) units provide SRT as the standard of care while five (66.6%) provide the service on request. One thousand one hundred twenty babies were admitted to the audited tertiary facility with 550 (49%) as preterms. Only 2.72% received surfactant replacement therapy. Sixty-six percent of recipients survived whilst 33.3% died. Respiratory support positively enhanced outcome in recipients of surfactant therapy.Conclusion: There is a limited use of surfactant nationally. Its use seemed to have improved survival.

Newborn resuscitation practices and paucity of resuscitative devices in Nigeria; a call to action.

BACKGROUND: Neonatal resuscitation is a method of preventing morbidities & mortality from asphyxia. Up to 85% of facilities in sub-Saharan Africa lack supplies or skilled personnel for neonatal resuscitation. Relative to the place of birth and the skill of the birth attendant, a variety of resuscitative practice are employed to make babies cry instead of helping the baby breathe. Many painful procedures are applied when the baby is unable to cry after birth in the absence of a health care worker trained in bag-mask ventilation. OBJECTIVES: To ascertain the resuscitation practices in communities lacking bag-mask-valve devices. METHODS: Surveys on the resuscitation practices during NISONM annual community outreach and mENCC trainings for four consecutive years in different geopolitical zones of the country. RESULTS: Spanking of the baby usually in the upside down position (>90%), body massage with hot compress or salicylate containing balms, herbal concoctions, injection hydrocortisone or crystalline penicillin were used. CONCLUSION: There is an urgent need to address the issue of training on bag-mask ventilation and provision for frontline healthcare workers in Nigeria as a neonatal mortality reduction strategy.

HemoTypeSC, a low-cost point-of-care testing device for sickle cell disease: Promises and challenges.

BACKGROUND: Sickle cell disease (SCD) is a neglected burden of growing importance. >312,000 births are affected annually by sickle cell anaemia (SCA). Early interventions such as newborn screening, penicillin prophylaxis and hydroxyurea can substantially reduce the mortality and morbidity associated with SCD. Nevertheless, their implementation in African countries has been mostly limited to pilot projects. Recent development of low-cost point-of-care testing (POCT) devices for sickle haemoglobin (HbS) could greatly facilitate the diagnosis of those affected. METHODS: We conducted the first multi-centre, real-world assessment of a low-cost POCT device, HemoTypeSC, in a low-income country. Between September and November 2017, we screened 1121 babies using both HemoTypeSC and HPLC and confirmed discordant samples by molecular diagnosis. FINDINGS: We found that, in optimal field conditions, the sensitivity and specificity of the test for SCA were 93.4% and 99.9%, respectively. All 14 carriers of haemoglobin C were successfully identified. Our study reveals an overall accuracy of 99.1%, but also highlights the importance of rigorous data collection, staff training and accurate confirmatory testing. It suggests that HPLC results might not be as reliable in a resource-poor setting as usually considered. INTERPRETATION: The use of such a POCT device can be scaled up and routinely used across multiple healthcare centres in sub-Saharan Africa, which would offer great potential for the identification and management of vast numbers of individuals affected by SCD who are currently undiagnosed. FUNDING US: Imperial College London's Wellcome Trust Centre for Global Health Research (grant #WMNP P43370).

A Multi-centre Survey of Acceptability of Newborn Screening for Sickle Cell Disease in Nigeria.

Background Sickle cell disease (SCD) is a major genetic disease that manifests early in life and may lead to significant morbidities. One of the health care services that have been effective in reducing the burden of SCD in developed countries is newborn screening (NBS) followed by pneumococcal vaccines, penicillin prophylaxis, and hydroxyurea treatment. Yet, in sub-Saharan African countries, where about 75% of annual affected babies worldwide are born, NBS programmes are largely unavailable. It is not clear whether this is due to technical challenges associated with setting up such programmes, or significant cultural and social barriers to its acceptance in such settings. Objective Our aim was to ascertain the attitudes to and acceptability of NBS in Nigeria among various socio-demographic groups including health professionals, undergraduate students, parents of children with SCD and SCD patients. Methods Data on socio-demographic characteristics, knowledge of SCD and attitude towards NBS were collected using a semi-structured pre-tested questionnaire from April to July 2014 across 15 health institutions and university campuses in Nigeria. Data were collected from 1,301 respondents across Nigeria. Results There was good knowledge of SCD as an inherited blood disorder. Although 86% of respondents (n = 1,119) supported NBS, there was a statistically significant relationship between support for NBS and age (p = 003), educational status (p = 000) and religion (p = 000). Conclusion This study suggests that there is a good acceptability of NBS across Nigeria. The main barriers to its use are likely to be financial and practical, rather than social or cultural.

Preliminary Evaluation of a Point-of-Care Testing Device (SickleSCAN™) in Screening for Sickle Cell Disease.

Sickle cell disease affects about 150,000 births annually in Nigeria. Early diagnosis is hampered by factors such as centralized and urban localization of laboratories, high cost of diagnostic equipment and inadequate skilled manpower to operate them. The need for a low-cost, portable, easy-to-use diagnostic test for sickle cell disease is critical, especially in resource-poor countries. In this study, we evaluated the performance characteristics of a novel point-of-care testing device (SickleSCAN™), and its acceptability and feasibility, as a possible screening tool for sickle cell disease. In the first phase, we assessed the performance characteristics of SickleSCAN™ by evaluating 57 subjects comprising both children and adults attending a primary health center, for Hb SS (ßS/ßS; HBB: c.20A>T), Hb SC (ßS/ßC; HBB: c.19G>A) and Hb AS (ßA/ßS) using SickleSCAN™, cellulose acetate electrophoresis (CAE) and high performance liquid chromatography (HPLC). Performance characteristics such as diagnostic sensitivity and specificity were compared to HPLC as a standard method. We subsequently undertook a second phase wherein the acceptability and feasibility of the device for sickle cell disease screening, was evaluated using semi-structured and structured questionnaires among 197 healthcare personnel and 221 subjects, respectively. Sickle cell disease was carried by 3.4% of the subjects. The diagnostic sensitivity, specificity and test efficiency of SickleSCAN™ for sickle cell disease (Hb SS and Hb SC), were 100.0, 98.2 and 98.2%, respectively. Findings from this study showed SickleSCAN™ to be a viable screening tool that can easily be applied in community-based screening for early diagnosis of sickle cell disease with little expertise and low cost.

Neonatal Jaundice in Low- and Middle-Income Countries: Lessons and Future Directions from the 2015 Don Ostrow Trieste Yellow Retreat.

Severe neonatal hyperbilirubinemia, defined as total serum bilirubin (TSB) ≥20 mg/dl, is associated with a higher risk of permanent neurological sequelae and death. Jaundice can and should be promptly diagnosed and treated. Reliable methods for TSB assay are not always readily available, particularly in low- and middle-income countries, making the true incidence of severe neonatal jaundice (NNJ) difficult to estimate. To gather a more comprehensive picture, a symposium addressing NNJ worldwide was organized during the 2015 Don Ostrow Trieste Yellow Retreat. Data collected by several researchers in different regions of the world were presented and differences/similarities discussed. This report points out the need for: (1) a coordinated worldwide effort to define the burden and the causes of severe NNJ and its consequences; (2) aggressive educational programs for families and health personnel to facilitate timely care-seeking, and (3) accurate diagnostics and effective phototherapy.

Neonatal hyperbilirubinemia and Rhesus disease of the newborn: incidence and impairment estimates for 2010 at regional and global levels.

BACKGROUND: Rhesus (Rh) disease and extreme hyperbilirubinemia (EHB) result in neonatal mortality and long-term neurodevelopmental impairment, yet there are no estimates of their burden. METHODS: Systematic reviews and meta-analyses were undertaken of national prevalence, mortality, and kernicterus due to Rh disease and EHB. We applied a compartmental model to estimate neonatal survivors and impairment cases for 2010. RESULTS: Twenty-four million (18% of 134 million live births ≥ 32 wk gestational age from 184 countries; uncertainty range: 23-26 million) were at risk for neonatal hyperbilirubinemia-related adverse outcomes. Of these, 480,700 (0.36%) had either Rh disease (373,300; uncertainty range: 271,800-477,500) or developed EHB from other causes (107,400; uncertainty range: 57,000-131,000), with a 24% risk for death (114,100; uncertainty range: 59,700-172,000), 13% for kernicterus (75,400), and 11% for stillbirths. Three-quarters of mortality occurred in sub-Saharan Africa and South Asia. Kernicterus with Rh disease ranged from 38, 28, 28, and 25/100,000 live births for Eastern Europe/Central Asian, sub-Saharan African, South Asian, and Latin American regions, respectively. More than 83% of survivors with kernicterus had one or more impairments. CONCLUSION: Failure to prevent Rh sensitization and manage neonatal hyperbilirubinemia results in 114,100 avoidable neonatal deaths and many children grow up with disabilities. Proven solutions remain underused, especially in low-income countries.

Thyroid profile of term appropriate for gestational age neonates in Nigeria: a forerunner to screening for congenital hypothyroidism.

Thyroid hormones in normal quantity are vital for physical growth and mental development during fetal and postnatal life. The available publications in Sub-Saharan Africa on the thyroid function of newborn infants was reported in babies delivered in moderate to severe goitre zones; utilizing the hormone levels from these studies may have a measure of bias. Newborn screening for congenital hypothyroidism (CH) in Sub-Saharan Africa is still a mirage, the technicality of the best timing for collection of blood samples need to be studied. Consequently, we report the serum levels of total thyroxine (T4), triiodothyronine (T3) and thyroid stimulating hormone (TSH) at birth and at 72 h after birth, and to ascertain if there is any significant difference between them. This was a prospective cross-sectional study (6 months period) between November and April 2005. One hundred and fourteen apparently healthy term AGA neonates had their thyroid function analyzed, the females (59) were slightly more in number than the (males 55). Most of them were between GA of 37-38 weeks at birth. The observed 72 h mean values of serum T3 and T4 (1.06 and 101.38 nmol l(-1)) compared with the cord values at birth (0.89 and 75.48 nmol l(-1)), was not statistically significant. The mean cord TSH levels (13.59 mU l(-1)) compared with 72 h serum TSH levels (10.25 mU l(-1)) was also insignificant p = 0.3. For Sub-Saharan Africa cord TSH analysis may be a reasonable choice for newborn screening for congenital hypothyroidism.

Adverse perinatal conditions in hearing-impaired children in a developing country.

Prevailing adverse perinatal conditions in developing countries have been associated with substantial mortality, but little evidence exists on their impact on permanent childhood disabilities and morbidity due to limitations in clinical investigations and medical records. This study aims to identify the possible association between parent-reported adverse perinatal conditions and permanent hearing loss, in order to establish service needs within current maternal and child health programmes. Structured questionnaires were administered to 363 parents of deaf children and 309 parents of normal-hearing children in an inner city area of Lagos, Nigeria. The parents were from all social classes. After a multivariable logistic regression analysis, birth asphyxia [OR 20.45; 95% CI 6.26, 66.85], difficult delivery [OR 8.09; 95% CI 2.76, 23.68], neonatal jaundice [OR 2.45; 95% CI 1.25, 4.79] and neonatal seizures [OR 2.30; 95% CI 1.09, 4.85] were associated with permanent hearing loss. Consanguineous marriages [OR 6.69; 95% CI 2.72, 16.46] and family history of deafness [OR 6.27; 95% CI 2.07, 18.97] also emerged as additional risk factors for permanent hearing loss. In addition, parents of children in state-owned schools for the deaf were significantly more likely to belong to higher social classes compared with normal-hearing children in mainstream state-owned schools. There is a need to incorporate services for the early detection of permanent hearing loss into current maternal and child healthcare programmes in developing countries.