Abstract: Webinar teaching programs play a crucial role in improving and
updating the mothers' knowledge and practices regarding their children's health such as
vitamin D deficiency and the correction of misleading information as well. Such problem
which is largely unknown by majority of the people, has a high prevalence even in
developed and sunny countries. Aim: To evaluate effect of Webinar Teaching Program on
Mothers' Knowledge and Practices regarding Vitamin D Deficiency among their Children.
Design: A Quasi-Experimental design (one group pre/posttest). Setting: The study was
conducted at Kafr El-Sheikh Governorate, Egypt. Subjects: A purposive sample of 300
mothers. Tool 1: Self-administered questionnaire consisted of 2 parts: Mothers'
demographic data, mothers' knowledge about vitamin D deficiency. Tool 2: Mothers'
reported practices checklist regarding vitamin D deficiency. Tool 3: Mothers' feedback
regarding using the webinar. Results: The mean age of the studied mothers was 25.2±4.3
years. All mothers were attending webinar course about vitamin D deficiency for the first
time. Webinars had a significant effect on improving both knowledge and reported
practices of mothers. A positive significant correlation between knowledge and reported
practice scores regarding vitamin D deficiency. Conclusion: The online webinar teaching
program had a positive effect on improving mothers' knowledge and reported practices
regarding vitamin D deficiency among their children. Recommendations: Webinar can be
used as new technology educational methods for mothers regarding other diseases to
improve their knowledge and practices.