Publications by authors named "Edgar Neves"

4 Publications

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Prevalence of dental caries in the first permanent molar and associated risk factors among sixth-grade students in São Tomé Island.

BMC Oral Health 2021 09 28;21(1):483. Epub 2021 Sep 28.

Ministry of Health, Água Grand, São Tomé and Príncipe.

Background: Dental caries is one of the most preventable oral diseases among children in developing countries. This study aims to estimate the prevalence and severity of dental caries in the first permanent molar and analyze the related risk factors among sixth-grade students in São Tomé Island.

Methods: A cross-sectional study with a stratified cluster sampling method was conducted on 1855 sixth-grade school children, mainly aged 11 to 14 years old, from 10 schools in 6 regions of São Tomé Island, from April 17 to June 27, 2021. Dental caries examination was performed by using the CAST criteria (DMFT) index, and the self-administered questionnaires about family background, oral hygiene, and relevant behaviors were collected. Multivariable logistic regression was used to study risk factors related to dental caries of the first permanent molar, and all data analyses were done using SPSS version 25.

Results: The prevalence of dental caries in the first permanent molar was 68.79%, without significant difference between gender, age, residence, and whether only child or not. The mean Decayed, Missing, and Filled Teeth (DMFT) index and mean Decayed, Missing, and Filled Surface (DMFS) index were 1.751 ± 1.514 and 3.542 ± 3.941, respectively. The rate of filling teeth was 5.50%, and Pit and Fissure Sealant (PFS) rate was 2.21%. The overall prevalence and DMFT index of dental caries of permanent teeth was 76.01% and 2.753 ± 4.569, respectively. The results of logistic regression analysis indicated that the frequency of candy/chocolate consumption (OR = 1.095) and fair self-assessment of dental health (OR = 1.354) were significantly associated with dental caries (P < 0.05).

Conclusions: The high prevalence of dental caries in the first permanent molar was a public health issue among sixth-grade school children in São Tomé Island. The prevalence of dental caries, mean DMFT and DMFS scores were higher, while the rate of filling and PFS teeth were lower than the average score of other African countries. Thus, oral health education, implement oral health preaching to school children and their parents is crucial to prevent dental caries.
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http://dx.doi.org/10.1186/s12903-021-01846-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8479893PMC
September 2021

Teenage pregnancy - a study in São Tomé and Príncipe.

Int J Adolesc Med Health 2017 Aug 22;32(1). Epub 2017 Aug 22.

Unit of Adolescent Medicine, Pediatrics Department of Hospital de Braga, Braga, Portugal.

Introduction The increasing number of pregnant teenagers in São Tomé and Príncipe (STP) represents a serious public health issue. The aim of this study was to characterize the population of pregnant adolescents followed in a health facility dedicated to maternal health in STP. Methods A cross-sectional survey was conducted among pregnant teenagers that attended the Mother and Child Protection Center during the first quarter of 2017. The survey contained questions on sociodemographic characteristics, sexual and risk behaviors, family, partners and health support. Results The mean age of the 51 pregnant teenagers included was 16.37 ± 0.8 years. Eight girls reported that they had planned to fall pregnant. Teenagers whose pregnancy was unplanned usually present with a previous family history of adolescent pregnancy. About 59% of girls engaged in sexual activity before 16 years of age with a mean number of sexual partners of 1.84 ± 0.88. In this study, 51% of the girls do not use any contraceptive method, usually because their partner refuses to do so. The preferred contraceptive method are condoms. Information on contraception is given mainly at school. Pregnant girls' first medical consultation was at a mean gestational age of 6 weeks. Abortion was considered by 51% of girls after pregnancy was confirmed. Conclusion Teenage pregnancy imposes health problems for the mother and child and contributes to educational and socioeconomic disadvantages. The collaboration of healthcare providers, teachers and parents is needed to enhance sexual health education. This is the first study in STP on teenage pregnancy; although the sample is small, the authors believe that the results are representative of the general population.
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http://dx.doi.org/10.1515/ijamh-2017-0088DOI Listing
August 2017

Giardia duodenalis and soil-transmitted helminths infections in children in São Tomé and Príncipe: do we think Giardia when addressing parasite control?

J Trop Pediatr 2015 Apr 20;61(2):106-12. Epub 2015 Jan 20.

Unidade de Clínica Tropical e Centro de Malária e Doenças Tropicais-LA, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, 1349-008 Lisboa, Portugal.

Giardia duodenalis prevalence is commonly as high as soil-transmitted helminths (STH), nevertheless is not considered for large-scale chemotherapy through mass drug administration (MDA) due to its short incubation period and frequent reinfections, its control being associated to improving access to water and sanitation. A study enrolling 444 children attending preschools was conducted in May 2011 during a deworming campaign. Faecal samples were obtained and analysed through microscopy of wet mounting and after Kato-Katz and formol-ether concentration techniques. The majority of children were infected with at least one pathogenic parasite (86.7%, 385 of 444). Ascaris lumbricoides and Trichuris trichiura (56.3%, 250 of 444 and 52.5%, 233 of 444, respectively) were the most frequent parasites followed by G. duodenalis infecting 41.7% (185 of 444) of the children. The present work aimed at obtaining updated information concerning intestinal parasite infections in children attending preschools in São Tomé and Príncipe and to contribute for the adequate management of the enteric infections.
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http://dx.doi.org/10.1093/tropej/fmu078DOI Listing
April 2015

High rate of detection of G8P[6] rotavirus in children with acute gastroenteritis in São Tomé and Príncipe.

Arch Virol 2015 Feb 5;160(2):423-8. Epub 2014 Oct 5.

Unidade de Microbiologia Médica, Grupo de Virologia, Centro de Malária e outras Doenças Tropicais, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Rua da Junqueira 100, 1349-008, Lisbon, Portugal,

The burden of rotavirus infections greatly affects the low-income African countries. In the absence of epidemiological data on pediatric diarrhea in São Tomé and Príncipe (STP), a study was conducted from August to December 2011. Rotavirus antigen was detected in 36.7 % of the collected fecal samples (87/237). G8P[6] was identified as the predominant genotype (71.1 % detection rate), while G1P[8] represented only 8.4 %. Phylogenetic analysis of VP7 G8 strains showed clustering within lineage G8d, while VP4 P[6] strains clustered within lineage 1a. Our results represent the first report on rotavirus from STP and show one of the highest detection rates of G8 rotaviruses worldwide.
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http://dx.doi.org/10.1007/s00705-014-2244-7DOI Listing
February 2015
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