Abstract
Background: Cat allergen sensitization (CAS) is common indoor problem. Its prevalence is increasing worldwide. Other indoor allergens are: mites, mold and cockroach.
Objective: To define the correlation between CAS and allergic diseases (ADs) in Jeddah-Saudi.
Methods: A research conducted during 2020 in private clinic (Jeddah - Saudi). Data were extracted retrospectively from patient files. SIgE in vitro blood test results of positive CAS for 110 patients were included. Additionally, positive sIgE results of other inhalant allergens were taken. Furthermore, clinical allergic diagnoses were extracted. All data were filled in excel sheet. Afterward, five tables were concluded.
Results: Sample was 110 patients with positive CAS results. Females were 60 (54%) while males were 50 (46%). Adult and middle ages were the most common to have CAS: 37 (34%) in age period between 30-40 years, 23 (21%) in age period between 20-30 years. Commonest ADs associated with CAS are allergic rhinitis and sinusitis as 59 (53%). 2nd common group associated with CAS are: atopic dermatitis 25 (23%), asthma 20 (18%), urticaria and angioedema 15 (14%). House dust mites are the commonest inhalant allergens associated with CAS: dermatophagoides farina (DF) 53 (48%), dermatophagoides pteronyssinus (DP) 52 (47%), followed by dog 42 (38%), hoarse 40 (36%), cockroach, aspergillus 39 (35%), alternaria 38 (34%), cladosporium 35 (32%). Most sever allergen associated with CAS is camel as 4.3 class, followed by DP 2.2, cat, DF 2.1 and cockroach 2.