Table 3. PSQI scores of CSU and control groups.

Scores	CSU (n = 130)	CSU median (min-max)	Control (n = 100)	Control median (min-max)	P value
SSQ	1.28 ± 0.10	1.00 (0.00-3.00)	0.92 ± 0.98	1.00 (0.00-3.00)	0.034
SL	1.55 ± 0.12	2.00 (0.00-3.00)	1.07 ± 0.10	1.00 (0.00-3.00)	0.008
SD	1.27 ± 0.13	1.00 (0.00-3.00)	0.66 ± 0.12	0.00 (0.00-3.00)	0.003
HSE	0.66 ± 0.10	0.00 (0.00-3.00)	0.20 ± 0.07	0.00 (0.00-2.00)	0.003
SDis	1.65 ± 0.84	2.00 (0.00-3.00)	1.25 ± 0.67	1.00 (0.00-2.00)	0.008
USM	0.35 ± 0.90	0.00 (0.00-3.00)	0.05 ± 0.40	0.00 (0.00-3.00)	0.017
DD	1.35 ± 0.11	1.00 (0.00-3.00)	0.87 ± 0.10	1.00 (0.00-3.00)	0.005
Global PSQI score	8.04 ± 0.54	7.00 (1.00-17.00)	5.09 ± 0.44	5.00 (0.00-14.00)	< 0.001

CSU, chronic spontaneous urticaria; SSQ, subjective sleep quality; SL, sleep latency; SD, sleep duration; HSE, habitual sleep efficiency; SDis, sleep disturbances; USM, use of sleep medications; DD, daytime dysfunction; PSQI, Pittsburgh sleep quality index.