The feasibility of epidemiological research on prostate cancer in African men in Ibadan, Nigeria.

BACKGROUND: Men of African descent have the highest incidence and mortality rates of prostate cancer (PrCa) worldwide. Notably, PrCa is increasing in Africa with Nigerian men being mostly affected. Thus, it is important to understand risk factors for PrCa in Nigeria and build capacity for cancer research. The goals of this study were to determine the feasibility of conducting an epidemiological study of PrCa and to obtain preliminary data on risk factors for PrCa in Nigeria. METHODS: A case-control study (50 cases/50 controls) was conducted at the University College Hospital (UCH) in Ibadan, Nigeria, between October 2011 and December 2012. Men aged 40 to 80 years were approached for the study and asked to provide informed consent and complete the research protocol. Logistic regression models were used to examine associations between demographic, social and lifestyle characteristics and risk of PrCa. RESULTS: The participation rate among cases and controls was 98% and 93%, respectively. All participants completed a questionnaire and 99% (50 cases/49 controls) provided blood samples. Cases had a median serum diagnostic PSA of 73 ng/ml, and 38% had a Gleason score 8-10 tumor. Family history of PrCa was associated with a 4.9-fold increased risk of PrCa (95% CI 1.0 - 24.8). There were statistically significant inverse associations between PrCa and height, weight and waist circumference, but there was no association with body mass index (kg/m(2)). There were no associations between other socio-demographic and lifestyle characteristics and PrCa risk. CONCLUSION: This feasibility study demonstrated the ability to ascertain and recruit participants at UCH and collect epidemiological, clinical and biospecimen data. Our results highlighted the advanced clinical characteristics of PrCa in Nigerian men, and that family history of PrCa and some anthropometric factors were associated with PrCa risk in this population. However, larger studies are needed to better understand the epidemiological risk factors of PrCa in Nigeria.

Trend and enhanced surveillance of Monkeypox during COVID-19 pandemic in Nigeria.

Monkeypox (MPX) is a viral zoonosis with lesions like smallpox. Though rare in Nigeria, sporadic outbreaks have been reported in 17 states since September 2017. Unfortunately, the COVID-19 pandemic has further reduced surveillance and reporting of MPX disease. This study seeks to assess the effect of an enhanced surveillance approach to detect MPX cases and measure the cumulative incidence of MPX in priority states in Nigeria. We identified three priority states (Rivers, Delta and Bayelsa) and their Local Government Areas (LGAs) based on previous disease incidence. We also identified, trained, and incentivized community volunteers to conduct active case searches over three months (January to March 2021). We supported case investigation of suspected cases and followed up on cases in addition to routine active surveillance for MPX in health facilities and communities. Weekly and monthly follow-up was carried out during the same period. Out of the three states, 30 hotspots LGAs out of the 56 LGAs (54%) were engaged for enhanced surveillance. We trained three state supervisors, 30 LGA surveillance facilitators and 600 Community informants across the three priority states. Overall, twenty-five (25) suspected cases of MPX were identified. Out of these, three (12%) were confirmed as positive. Enhanced surveillance improved reporting of MPX diseases in hotspots LGAs across the priority states. Extension of this surveillance approach alongside tailored technical support is critical intra and post-pandemic.

Integrated disease surveillance and response strategy for epidemic prone diseases at the primary health care (PHC) level in Oyo State, Nigeria: what do health care workers know and feel?

INTRODUCTION: Effective diseases surveillance remains an important operational tool in countries with recurrent epidemic prone diseases (EPDs). In Nigeria, insufficient knowledge among Health Care Workers (HCWs) on Integrated Disease Strategy and Response Strategy (IDSR) have been documented. This study assessed knowledge and attitude of HCWs towards IDSR strategy for EPDs at the Primary Health Care (PHC) level in Oyo State, Nigeria. METHODS: A cross-sectional facility based study using an interviewer-administered questionnaire was used to obtain information from 531 HCWs. In addition, 7 Key Informant Interviews was conducted. Discrete data were summarized as proportions while chi-square test was used to assess association between variables. A logistic regression model was used to assess predictors of knowledge of HCWs. All statistical significance was set at 5%. RESULTS: Mean age of respondents was 42 ± 8.1 years with female preponderance (86.1%). Community Health Extension Workers (CHEWs) (36.9%) constituted the highest proportion of HCWs. About 70% and 90% of HCWs had good knowledge of EPDs and IDSR surveillance data flow respectively. Majority of HCWs 333(67.3%) knew how to use IDSR form 003 but less than 10% knew how to use other IDSR forms. The majority of HCWs {492(99.4%) and 345(69.7%)} agreed that reporting EPDs is necessary and IDSR tools are simple to use. Number of years post basic qualification was a predictor of HCWs' knowledge (AOR: 1.6; 95% CI: 1.0-2.3). CONCLUSION: This study showed poor knowledge on the use of IDSR forms although majority of HCWs had good knowledge and positive attitude towards IDSR strategy for EPDs. Thus, regular evaluation of health workers' knowledge and attitude towards IDSR strategy as a performance function of the surveillance system is recommended.