Objectives: determine the prevalence of acne vulgaris among teen-agers in Qena city, determine the
risk factors of acne vulgaris, and determine the effect of acne vulgaris on the quality of life among
teen-agers in Qena city.
Patient and methods: The study includes 200 students in Qena secondary schools, the students
were asked to fill in 2 questionnaires, the first include personal date and the other include is CADI.
Results: the prevalence of acne vulgaris in Qena secondary school students was 58, acne vulgaris
was more prevalent in males (53.5%) than females (46.5%). In addition, We found 5 risk factors
associated with AV, the most contributing risk factor for AV of these 5 risk factors was stress (AOR
= 18.85, 95% CI 6.313-56.281), regular eating of spicy food (AOR = 13.364, 95% CI 4.525-39.465)
and the least contributing risk factor was eating fast food. In our study CADI score was significantly
related to the disease grade, being maximum among those with severe grade, followed by moderate
and lastly mild disease grade.
Conclusion: Acne vulgaris is prevalent among Qena teen-agers, stress and dietary factors are
important risk factors of acne, CADI score was significantly related to the disease grade.