Publications by authors named "Chiheb Ben Rayana"
Background: The mass vaccination campaign against SARS-CoV-2 was started in Tunisia on 13 March 2021 by using progressively seven different vaccines approved for emergency use. Herein, we aimed to evaluate the humoral and cellular immunity in subjects aged 40 years and over who received one of the following two-dose regimen vaccines against SARS-CoV-2, namely mRNA-1273 or Spikevax (Moderna), BNT162B2 or Comirnaty (Pfizer-BioNTech), Gam-COVID-Vac or Sputnik V (Gamaleya Research Institute), ChAdOx1-S or Vaxzevria (AstraZeneca), BIBP (Sinopharm), and Coronavac (Sinovac).
Material And Methods: For each type of vaccine, a sample of subjects aged 40 and over was randomly selected from the national platform for monitoring COVID-19 vaccination and contacted to participate to this study.
In North Africa, overnutrition has dramatically increased with the nutrition transition while micronutrient deficiencies persist, resulting in clustering of opposite types of malnutrition that can present a unique difficulty for public health interventions. We assessed the magnitude of the double burden of malnutrition among urban Moroccan and Tunisian women, as defined by the coexistence of overall or central adiposity and anemia or iron deficiency (ID), and explored the sociodemographic patterning of individual double burden. In cross-sectional surveys representative of the region around the capital city, we randomly selected 811 and 1689 nonpregnant women aged 20-49 y in Morocco and Tunisia, respectively.
View Article and Find Full Text PDFBackground: The change of the way of life and the food practices in Tunisia due inter alia to the improvement of the socioeconomic conditions induced low fuel consumption of food with significant nutritional interest such as those rich in food fibres which have positive effects on the reduction and the prevention of some complications of the metabolic diseases such as the obesity whose prevalence among Tunisian women is increasingly high.
Objective: We assessed the association between the mean daily fiber intake and anthropometric parameters, the serum lipid profile and the serum glucose concentration among urban Tunisian women.
Methods: We conducted a 7-day food weighing method among 260 women of which 60 are obese (BMI > 30 kg/m(2)).
Background: Frequent screening of renal failure and good glycaemic control in diabetic patients can avoid this severe complication.
Aim: To evaluate the frequency of renal failure and the associated risk factors among type 2 diabetic Tunisian in-patients. Glomerular filtration rate was estimated using the Cockcroft-Gault formula.
Unlabelled: The aims of the study were to study the distribution of cholesterol and triglycerides and to assess the prevalence of dyslipemia in Tunisian adult population.
Methods: The Tunisian National Nutrition Survey (TNNS) was a cross sectional study performed on a total of 7860 adult subjects and was conducted on 1996-1997. The TNNS included 3087 adults over 20 years old.
Background: The prevalence of obesity in children is known to be increasing rapidly worldwide but few population-based surveys have been undertaken in North Africa and in the Middle East.
Aims: Report the means of body mass index with values corresponding to the different percentiles in boys and girls by age from a large nationally representative sample of the Tunisian children population. The second aim was to estimate the prevalence of obesity and over weight in children and adolescent using the 85th and 95th body mass index percentile respectively derived from the U.
Objectives: To identify aetiological factors in anaemia and to explore knowledge, perceptions and attitudes towards anaemia.
Design: Two cross-sectional surveys and sixteen focus group discussions.
Setting: The two regions with the highest prevalence of anaemia in Tunisia, Greater Tunis (GT) and the South West (SW).