Table 2.

Comparison between different subgroups of patients with chronic spontaneous urticaria (CSU)

	ASST		p value	SPT		p value	total IgE (IU/ml)		p value
	positive	negative		positive	negative		≥ 100	< 100
Number	15	48		42	21		29	34
Female gender (%)	12 (80%)	28 (58.3%)	0.132	24 (57.1%)	16 (76.2%)	0.143	19 (65.5%)	21 (61.8%)	0.762
Age (years), mean (range)	33.2 (13-52)	39.5 (13-70)	0.172	37.6 (13-70)	39.5 (13-70)	0.654	38.5 (13-64)	38 (13-70)	0.897
UAS, mean (range)	5.13 (2-6)	4.9 (2-6)	0.486	5.02 (2-6)	4.82 (2-6)	0.499	5.07 (2-6)	4.85 (2-6)	0.459

Note: CSU: chronic spontaneous urticaria; ASST: autologous serum skin testing; SPT: skin prick testing; UAS: urticaria activity score. Significance between two groups was evaluated with a two-tailed Student’s t-test and indicated by p value. p < 0.05 was indicated as significant.