Table 1. Baseline characteristics.

Variables	Patients (n=161 386)n (%)
Age group (years)
0–2	5332	(3.30)
3–5	21 312	(13.21)
6–9	49 079	(30.41)
10–12	21 026	(13.03)
13–19	64 637	(40.05)
Gender
Male	94 049	(58.28)
Female	67 337	(41.72)
Season
Spring	35 912	(22.25)
Summer	43 872	(27.18)
Autumn	47 157	(29.22)
Winter	34 445	(21.34)
Concomitant medications*
Antihistamines	117 113	(72.57)
Non-steroidal anti-inflammatory drugs	89 518	(55.47)
Corticosteroids	76 684	(47.52)
Histamine H2-receptor antagonists	30 673	(19.01)
Opioids	18 773	(11.63)
Benzodiazepines	14 317	(8.87)
Antipsychotics	7865	(4.87)
Psychostimulants	7497	(4.65)
Neuraminidase inhibitors	6663	(4.13)
Antiepileptics	2732	(1.69)
Antidepressants	2222	(1.38)
Neuropsychiatric adverse events
Anxiety disorder	47 911	(29.69)
Mood disorder	46 114	(28.57)
Personality disorder	36 899	(22.86)
Sleep-related disorder	10 616	(6.58)
Others	10 194	(6.32)
Movement disorder	7076	(4.38)
Psychotic disorder	1469	(0.91)
Cognitive disorder	1087	(0.67)
Self-harm	20	(0.01)

^*Overalpped.