Human biomonitoring of inorganic elements in a representative sample of the general population from Cape Verde: Results from the PERVEMAC-II study.

Inorganic elements such as heavy metals and other potentially toxic elements are frequently detected in humans. The aim of the present study was to analyze the blood concentrations of 49 inorganic elements in a cohort of 401 subjects from Cape Verde. The study was performed in the frame of the Pesticide Residues in Vegetables of the Macaronesia project (PERVEMAC-II). Concentration of inorganic elements, including elements in the ATSDR's priority pollutant list and rare earth elements (RREs) were measured by ICP-MS in the whole blood of participants. A total of 20 out of 49 elements (40.8%) were detected in ≥20% of participants. Arsenic, copper, mercury, lead, selenium, strontium and zinc were detected in ≥99% of samples. Among the REEs, 7 showed detection frequencies above 20%. The median number of different elements detected was 15. In the present series, 77.0, 99.2 and 33.4% of the participants showed values of arsenic, mercury and lead higher than Reference Values 95%. These percentages were much higher than those reported in similar studies. Niobium and tantalum showed the highest median concentrations: 1.35 and 1.34 ng/mL, suggesting an environmental source of these valuable REEs in Cape Verde. Age appeared as the most important factor influencing the blood levels of inorganic elements. Lifestyle had an effect on the concentration of some of these elements. Those subjects whose water source was pond water had significantly higher arsenic levels. The concentration of ∑REEs was significantly higher among individuals who purchase their food in supermarkets (P = 0.013). These variables are of relevance since they can be controlled individually to reduce exposure to these contaminants. Our results may be useful for the implementation of public health measures by the competent authorities.

The prevalence of exclusive breastfeeding and its associated factors in Cape Verde.

BACKGROUND: Exclusive breastfeeding (EBF) for the first 6 months of life is essential for maternal and child health. Breast milk is considered the most suitable food for the child in early years of life. Studies carried out in Cape Verde (INE; MSSS, Apresentação dos Principais Resultados Preliminares do IDSR-III, 2018) showed prevalence of EBF below the values recommended by the (WHO & UNICEF, Global Breastfeeding Scorecard, 2018. Enabling Women To Breastfeed Through Better Policies And Programmes, 2019). However, the determinants of EBF across the country have never been identified. The objective of this study is to estimate prevalence and identify the determinants of EBF in Cape Verde. METHODS: This is a quantitative, descriptive and cross-sectional study carried out between July 2018 and March 2019. The study population consisted of 1717 mothers of children aged less than or equal to 2 years, users of the Health Centers of the islands of Santo Antão, S. Vicente, Sal, Santiago and Fogo. A structured questionnaire was applied to mothers through an interview. The prevalence of exclusive breastfeeding was estimated by frequency analysis. The chi-square test was used to assess the association between the duration of EB and the variables maternity leave, mother's education, family income and health care variables. In order to identify the determinants of EBF, a binary logistic regression analysis was used. RESULTS: At the time of data collection, 32.50% of mothers practiced EBF. The present study shows that exclusive breastfeeding is influenced by several factors. The most representatives are maternal age (OR = 0.001*), level of education (OR = 0.028*), parity (OR = 0.004*) and number of prenatal consultations (OR = 0.019*). Receiving breastfeeding counseling was the only health care variable that was associated with the duration of EBF (p = 0.029). CONCLUSION: In Cape Verde, the prevalence of EBF can be considered reasonable. The present study shows that EBF in the country is influenced by maternal age, level of education, parity and number of prenatal consultations.

Human biomonitoring of persistent and non-persistent pollutants in a representative sample of the general population from Cape Verde: Results from the PERVEMAC-II study.

International Public Health authorities recommend biomonitoring studies to assess the exposure to chemicals in the general population. The aim of the present study was to analyze the blood concentrations of a total 360 pollutants, including 230 pesticides in current or recent use, 59 persistent organochlorine pollutants (POPs), 11 anticoagulant rodenticides and 60 pharmaceutical active compounds (PhACs), in a cohort of 403 subjects from Cape Verde. The study was performed in the frame of the Pesticide Residues in Vegetables of the Macaronesia project (PERVEMAC-II). A total of 60 out of 360 toxic compounds (16.7%) were detected, at least, in one participant. The three most frequently detected substances were p,p'-DDE (100%), phenanthrene (94.0%) and hexachlobenzene (35.9%). 2-Phenylphenol and imidacloprid were detected in 29.0 and 14.4% of the population. The three substances with the highest serum concentrations were PhACs: naproxen (249.1 ng/mL), metronidazole (115.6 ng/mL) and acetaminophen (25.2 ng/mL). Median blood concentration of p,p'-DDE, HCB and phenanthrene were 1.87, 0.08 and 0.36 ng/mL. Blood concentrations of POPs were influenced by age, although both gender and body mass index may exert an influence in the presence of these substances. Lifestyle has an effect on the concentration of these substances, especially in terms of dietary habits. Both the frequency of detection and the concentration of the studied substances are similar to those of other biomonitored populations. This is the first biomonitoring study carried out in Cape Verde. Our results may be useful for the implementation of public health measures by the competent authorities.

Knowledge, attitudes and practices towards COVID-19: A cross-sectional study in the resident cape-verdean population.

CONTEXT: The first case of COVID-19 in Cabo Verde was confirmed on March 19, 2020. Since the beginning of the pandemic in the country, the government and health authorities have adopted restrictive measures to prevent the spread of SARS-CoV- 2 and well as defined risk communication and community involvement strategies. The present study aimed at assessing the knowledge, attitudes, and practices of the Cape Verdean resident population towards COVID-19, to support the government and the national health system in the definition of public health policies related to COVID-19. METHOD: A cross-sectional study was conducted among 1996 participants aged 16 years old and above. Data collected from April 5 to April 12, 2020, via an online self-reporting questionnaire adapted from a Chinese study. Descriptive statistics, chi-square tests, simple and multiple linear regression analyses were performed to determine factors associated with knowledge, attitudes, and practices towards COVID-19. RESULTS: The overall correct answer rate related to the knowledge about COVID-19 was 82% (9/11 * 100), 1970 (98.70%) of the participants declared they had stayed at home in recent days, 1926 (96.49%) had not attended parties, funerals or crowded places and 1860 (93.19%) confirmed changes in daily routines due to COVID-19. The majority of the participants, 1797 (90.26%), preferred receiving information about COVID-19 in Portuguese and trusted information transmitted by health professionals. Furthermore, television, radio, and newspapers were the preferred means of transmitting information about COVID-19. Participants' knowledge influenced COVID-19 prevention and control practices (rho = 0.119; p = 0.000). CONCLUSIONS: These findings showed that the resident population had a good level of knowledge about COVID-19; however, there is a need to use more effective strategies to improve attitudes and practices towards COVID-19 to attain better results in controlling the pandemic in Cabo Verde.