Association between anxiety and depression and sleep quality in benign laryngotracheal stenosis patients and analysis of risk factors

Table 1 Comparative sleep quality parameters

	Laryngotracheal stenosis patients (n = 127)	Chinese normative data (n = 112)	t	P value
Subjective sleep quality	1.22 ± 0.64	0.67 ± 0.88	5.569	< 0.0001
Sleep latency	1.59 ± 0.79	0.70 ± 0.98	7.766	< 0.0001
Sleep duration	1.09 ± 0.89	0.46 ± 0.68	6.086	< 0.0001
Sleep efficiency	1.13 ± 0.93	0.02 ± 0.73	10.167	< 0.0001
Sleep disturbances	1.22 ± 0.71	0.83 ± 0.61	4.524	< 0.0001
Use of hypnotic medications	0.24 ± 0.47	0.18 ± 0.63	0.840	0.402
Daytime dysfunction	1.28 ± 0.83	0.79 ± 0.94	4.280	< 0.0001
Total PSQI score	7.79 ± 2.47	3.23 ± 3.12	13.605	< 0.0001

PSQI: Pittsburgh sleep quality index.