Statistical analysis
The agreement scale was dichotomized as “agree-to-strongly agree” (agree and strongly agree) and “not agree-to-strongly agree” (strongly disagree, disagree and undecided). Similarly, the interest scale was dichotomized as “very-to-extremely interested” (very interested and extremely interested) and “not very-to-extremely interested” (not interested, slightly interested and moderately interested).
A binomial logistic regression analysis was performed to predict the likelihood of being very to extremely interested or not in app development described above stratified by age, gender, educational level, region, living area, economy according to the World Bank data, urticaria type and years with diagnosis. All data were analyzed using SPSS version 24.0 software (SPSS Inc., Chicago, IL, USA).