The Characteristics of Allergic Contact Dermatitis in Military and Civilian Populations: A Multicenter Cross-Sectional Study.

Background: Contact dermatitis is a common condition in the general population, with a global prevalence of 20%. It is an inflammatory skin disease that is classified as irritant contact dermatitis (80%) and allergic contact dermatitis (ACD) (20%). In addition, it is the most common presentation of occupational dermatoses and is one of the primary reasons for seeking medical attention among military personnel. Only few studies have compared the characteristics of contact dermatitis in soldiers and civilians. Objective: To compare the characteristics of ACD between civilians and soldiers. Methods: This large retrospective study was conducted in Israel and involved 1800 civilians and 750 soldiers with suspected ACD. All patients underwent relevant patch tests based on their clinical presentation and medical history. Results: At least 1 positive allergic reaction was found in 382 civilians (21.22%) and 208 soldiers (27.73%) (nonsignificant). Moreover, 69 civilians (18.06%) and 61 soldiers (29.32%) had at least 1 positive occupational allergic reaction ( P  < 0.05). Widespread dermatitis was significantly more common among soldiers. The most frequent occupations among civilians with positive allergic reactions were hairdressers/beauticians. "Professional, technical, and managerial occupations" were the most frequent categories among soldiers (24.6%), with computing professionals being the most common occupation (46.67%). Conclusion: Military personnel and civilians have different characteristics associated with ACD. Therefore, considering these characteristics before placement in a workplace can help prevent ACD.