The Investigated Question and Study Design in Cross-sectional Studies Response to “Chronic Urticaria and the Metabolic Syndrome: a Cross-sectional Community-based Study of 11,261 Patients” Authors Reply

We read with interest the letter by Soria et al. We have been studying Chronic Urticaria (CU) for several years. During this time, we have evaluated the disease and associated conditions from several aspects. The study presented by Soria et al. compared the severity of CU between a small group of obese CU patients and another small group of non-obese CU patients, all recruited in inpatient clinics of a hospital setting.

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