“…CU was specified as CSU/CIU in 17 studies [9, 24, 29, 31, 33, 34, 39, 42, 43, 45-47, 49-52, 54] and CIndU in 4 studies [18, 20, 27, 53]. Fourteen studies retrieved information on atopic disorders through medical charts/records [20, 21, 23, 27, 30, 32, 33, 35, 38, 42, 43, 50, 52, 53], 8 by questionnaire/self-report [18, 19, 31, 37, 40, 46, 47, 51], 7 by a physician diagnosis [9, 29, 34, 36, 41, 48, 49], and 9 did not describe their source of information [22, 24-26, 28, 39, 44, 45, 54]. All studies, but one, reported point prevalences of atopic disorders in CU, and six studies reported ORs.…”