Increased risk of major depression subsequent to a first-attack and non-infection caused urticaria in adolescence: a nationwide population-based study

Table 1 Characteristics and personal histories of adolescents with non-infection caused urticaria and control patients

	Adolescents with non-infection caused urticaria (n = 5,755)		Control patients (n = 17,265)
	No.	%	No.	%	p-value
Gender					1.000
Male	2,657	46.2	7,971	46.2
Female	3,098	53.8	9,294	53.8
Mean age (y/o) (Mean ± SD)	16.2 ± 1.7		16.2 ± 1.7		1.000
Age group (y/o)					1.000
13-15	2,645	46	7,935	46
16-18	3,110	54	9,330	54
Economic level of family (monthly income) (USD$)					0.246
<600	1,622	28.2	4,737	27.4
601 ~ 1,000	3,125	54.3	9,349	54.2
>1,000	1,008	17.5	3,179	18.4
Urbanization					0.622
1 (most)	1,313	22.8	4,068	23.6
2	703	12.2	2,102	12.2
3	1,783	31	5,225	30.3
4	1,956	34	5,870	34
Geographic regions of Taiwan*					0.036
Northern	2,659	46.2	8,105	46.9
Central	1,371	23.8	4,306	24.9
Southern	1,553	27	4,401	25.5
Eastern	172	3	453	2.6
Asthma history*					0.004
Yes	2,144	37.3	6,093	35.3
No	3,611	62.7	11,172	64.7
Atopic dermatitis history*					<0.001
Yes	394	6.8	771	4.5
No	5,361	93.2	16,494	95.5
Allergic rhinitis*					<0.001
Yes	2,886	50.1	8,068	46.7
No	2,869	49.9	9,197	53.3
Family history of affective disorders	339	5.9	932	5.4	0.151

ISSN: 1471-2431