background and aims. temporomandibular disorders (tmds) are the most common condition affecting the temporomandibular joint and associated structures. the aim of this study was the epidemiologic evaluation of tmds and related factors in a group of iranian adolescents. materials and methods. this descriptive cross-sectional survey included a sample of 800 high school students (400 girls and 400 ...

BACKGROUND Efforts to monitor malaria transmission increasingly use cross-sectional surveys to estimate transmission intensity from seroprevalence data using malarial antibodies. To date, seroconversion rates estimated from cross-sectional surveys have not been compared to rates estimated in prospective cohorts. Our objective was to compare seroconversion rates estimated in a prospective cohort...