The objective of this study was to look at the pattern of serum total cholesterol concentration (TCC) distribution and the prevalence of hypercholesterolemia (HC) in Saudi Arabia. A cross-sectional national epidemiological household survey was carried out, consisting of 4539 Saudi subjects, over the age of 15 years. The sample was adjusted for gender, age, regional and residency, and urban versus rural population distribution. The following details were taken for each subject: height, weight, calculation of body mass index (BMI) and random blood samples for total cholesterol measurements.

Objective : To study the prevalence of antithyroid antibodies among schoolchildren and adolescents in Gizan, Saudi Arabia. Design : Prospective, field study. Setting : Primary, intermediate and secondary schools in Gizan, Saudi Arabia. Subjects : Schoolchildren and adolescents in Gizan schools. Measures : Antithyroid antibodies (antithyroglobulin and antimicrosomal) were tested in Gizan schoolchildren and adolescents using the haemagglutination method. Results : We tested 1136 students (694 males and 442 females).