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Abstract:Objective: To study the prevalence of headaches in schools. Patients and methods: This was a cross-sectional descriptive and analytical study conducted in the ten schools of Libreville, from November 2013 to May 2014. We proceeded by exhaustive recruitment of all the students of the framework, fulfilling the inclusion criteria. We interviewed 5837 school children from 4 to 19 years interviewed and examined children from these schools about Results: The sample consisted of 2076 girls (51.0%) and 2861 boys (49.0%); the sex ratio was 0.96 for girls. Grade 5 students were the most represented. The prevalence of headache was 23.5%; 758 (25.6%) girls were prone to headache compared to 615 (21.5%) boys. The prevalence of headache increased with age, 10.6% at 5 years; 22.5% to 6-10 years; 25.9% to 11-15 years and 30.5% to over 15 years. The cephalalgic students were significantly older, ie 10 ± 2.4 years compared to 9 ± 2.5 years for the healthy students. Absenteeism was the most observed pass-through (68.7%), followed by lack of concentration (34.9%) and repetition (3.1%). Isolated headache accounted for 20.0%, compared to 80.0% of symptomatic headaches with the most commonly found oral lesions. Self-medication was the most common means of management (72.0%), with paracetamol as the molecule of choice (65.4%). Conclusion: Headache is a current symptom that is common and disabling. It constitutes a public health problem and must be investigated and adequately addressed to reduce their negative impact on the student's schooling and social life.

Introduction: Low birth weight is a key indicator of newborn health. The objective of this study was to contribute to the reduction of low birth weight-related morbidity and mortality. Patients and Methods: cohort study conducted from January 2019 to July 2020 at the "Mère-Enfant" University Hospital Centre (UHC) of Libreville. All newborns with a birth weight < 2500 g were included. The clinical data of patients were studied. They were followed over a period of 12 months and assessed psychomotorly by the Brunet-Lézine scale. Results: 1260/9035 births of low birth weight (14.0%) were observed, and 300 among them were included. The mortality rate was 27.0% (81) and 219 were followed for 12 months. The sex ratio was 0.8, the average birth weight was 2008.6 ± 215.2 g. The average gestational age was 34 ± 12 weeks with 75.3% prematurity. An infant disease was observed in 61.6% of cases and respiratory pathologies were more observed except at 3 months of age where the proportion of digestive pathologies was 20.5%. At the time of the last consultation at 12 months of life, 76.2% of infants had no pathology. The quotients of postural development, language and coordination were normal (between 110 -70) respectively in 75.4%, 99.1% and 68% of cases at the age of 12 months. The psychomotor development quotient was correlated with the birth weight in the language area r = 0.15 (p = 0.024), posture r = 0.15 (p = 0.015) and coordination r = 0.15 (p = 0.026) respectively. Conclusion: Low birth weight is a public health problem at UHCME-JEF. Despite the fact that psychomotor development can be said to be satisfactory, many efforts remain to be made to reduce low birth weight levels and improve survival.