Awareness, knowledge, attitude, and practice of adverse drug reaction reporting among health workers in primary health centres participating in seasonal malaria chemoprevention campaign in Nigeria in 2022: a cross-sectional survey.

BACKGROUND: Evaluating health workers' knowledge and practice of adverse drug reaction (ADR) reporting is an important step in identifying gaps in quality ADR reporting during public health interventions like the seasonal malaria chemoprevention (SMC) campaign. Pharmacovigilance (PV) monitoring is vital in SMC due to the number of children exposed to malaria medicines for a period of 4 or 5 months during the campaign. In Nigeria more than 10 million children are exposed to SMC medicines every year. The scale of this intervention emphasised the need for efficient and effective safety monitoring during the campaign. Thus, the objective of this study was to evaluate healthcare workers' (HCW) awareness, knowledge, attitude and practice (KAP) of ADR reporting in health facilities participating in SMC campaign to identify pharmacovigilance gaps which may suggest possible ways to ensure safety during the campaign. METHODS: World Health Organization's service availability and readiness assessment (SARA) recommendations were used to sample 2,598 out of 5,195 used as supervising health facilities (HFs) during the 2022 SMC campaign across nine states of the country. Out of the sampled HFs, 2,144 eligible and consented health facility workers (HFWs) were assessed for awareness, and KAP of ADR using the validated 45-item self-administered questionnaire. The data was analysed using descriptive statistics and correlation analysis at p < 0.05. RESULTS: The majority of the respondents are males (n = 1,333, 62.2%). The HFWs showed good awareness (n = 2,037, 95.0%) of pharmacovigilance (PV). However, only 809 (37.7%) of them had good knowledge scores. The mean ADR reporting attitude score (85.0 ± 15.3%) was good with many of the respondents (n = 1,548, 72.2%) having a good score. However, the respondents' ADR practice was suboptimal, only 1,356 (63.2%) of them had encounters with ADR, and a lot of negative perceived barriers to ADR reporting were identified in the study. For example, 493 (23%) believed that ADRs were not reported because they were not serious and life-threatening while 248 (11.6%) reported a fear of liability. Correlation analysis revealed female gender (r = 0.163, p < 0.001), older age (r = 0.207, p < 0.001) and years of practice (r = 0.050, p = 0.021) as factors significantly associated with ADR knowledge and attitude scores. CONCLUSION: The study indicated that HCWs across health facilities participating in SMC campaigns have ADR reporting knowledge and practice gaps. The study suggest training alone may not be effective in addressing gaps in ADR reporting. In addition to PV training, implementers can include continuous mentoring of health care workers or other similar interventions as part of strategy to improve ADR reporting. Also, context specific strategies to improve ADR reporting among health care worker needs to be implemented to address under-reporting of ADRs during SMC campaigns and other malaria public health interventions.

Urban-rural differences in seasonal malaria chemoprevention coverage and characteristics of target populations in nine states of Nigeria: a comparative cross-sectional study.

BACKGROUND: Differences between urban and rural contexts in terms of sociodemographic characteristics, geographical features and risk perceptions may lead to disparities in coverage and related outcomes of community-based preventive interventions, such as seasonal malaria chemoprevention (SMC). This study investigated urban-rural differences in SMC coverage and other programme outcomes, as well as child and caregiver characteristics of target populations in nine implementing states in Nigeria during the 2022 SMC round. METHODS: This is a comparative cross-sectional study based on comprehensive end-of-round household surveys conducted in nine states where SMC was delivered in Nigeria in 2022. Data of 11,880 caregiver-child pairs were included in the analysis. Rural-urban differences in SMC outcomes and child and caregiver characteristics were assessed, first by using Pearsons' chi-square test for independence for categorical variables. Univariate multilevel mixed-effect logistic regression models, with random intercepts for cluster units, were used to quantify the strength of association between location and each SMC coverage and related outcomes. RESULTS: Significant urban-rural differences were observed in caregivers' sociodemographic characteristics, such as age, gender, level of education, occupation status and health-seeking behaviour for febrile childhood illnesses. Disparities were also seen in terms of SMC coverage and related outcomes, with lower odds of the receipt of Day 1 dose direct observation of the administration of Day 1 dose by community distributors, receipt of the full three-day course of SMC medicines and receipt of SMC in all cycles of the annual round among children residing in urban areas, compared with those residing in rural areas. Similarly, urban-dwelling caregivers had lower odds of being knowledgeable of SMC and believing in the protective effect of SMC than rural-dwelling caregivers. CONCLUSION: Findings highlight observable urban-rural disparities in SMC programme delivery and related outcomes, as well as target population characteristics, underscoring the need for context-specific strategies to ensure optimal delivery of SMC and improve programme implementation outcomes in urban settings.

Predictors of caregiver adherence to administration of amodiaquine during delivery of seasonal malaria chemoprevention in Nigeria, Burkina Faso, Chad, and Togo.

BACKGROUND: Malaria is the leading cause of morbidity and mortality among infants and children under-five in sub-Saharan Africa. In the Sahel, seasonal malaria chemoprevention (SMC) is delivered door-to-door in monthly cycles. In each cycle, children are administered sulfadoxine-pyrimethamine (SP) plus amodiaquine (AQ) on Day 1 by community distributors, and AQ on Day 2 and Day 3 by caregivers. Non-adherence to AQ administration by caregivers has implications for emergence of antimalarial resistance. METHODS: Predictors of non-adherence to administration of AQ on Day 2 and Day 3 among caregivers of children aged 3-59 months who had received Day 1 SP and AQ during the last 2020 SMC cycle (n = 12,730) were analysed using data from SMC coverage surveys in Nigeria, Burkina Faso and Togo, and fitting multivariate random-effects logistic regression models. RESULTS: Previous adverse reaction to SMC medicines by eligible children (OR: 0.29, 95% CI 0.24-0.36, p < 0.001), awareness of the importance of administering Day 2 and Day 3 AQ (OR: 2.19, 95% CI 1.69-2.82, p < 0.001), caregiver age, and home visits to caregivers delivered by the Lead Mothers intervention in Nigeria (OR: 2.50, 95% CI 1.93-2.24, p < 0.001), were significantly associated with caregiver adherence to Day 2 and Day 3 AQ administration. CONCLUSIONS: Increasing caregivers' knowledge of SMC and interventions such as Lead Mothers have the potential to improve full adherence to AQ administration.