Main finding
The overall prevalence of urticaria in patients with rhinitis was 17.6%
(95% CI, 13.2%–21.9%). The pooled prevalence of rhinitis was 31.3%
(95% CI, 24.2%–38.4%) in patients with urticaria, and the rhinitis
in patients with AU and CU was 31.6 (95% CI, 7.4%–55.8%) and 28.7%
(95% CI, 20.4%–36.9%), respectively. The occurrence of rhinitis was
significantly associated with urticaria (OR, 2.67; 95% CI,
2.625–2.715).