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

Table 3 Correlation between self-rating anxiety scale, self-rating depression scale, and sleep quality

	SAS		SDS
	r	P value	r	P value
Subjective sleep quality	0.458	< 0.0001	0.268	0.001
Sleep latency	0.379	< 0.0001	0.509	< 0.0001
Sleep duration	0.366	< 0.0001	0.219	0.014
Sleep efficiency	0.218	0.014	0.273	0.002
Sleep disturbances	0.114	0.203	0.265	0.003
Use of hypnotic medications	0.161	0.071	0.013	0.886
Daytime dysfunction	0.023	0.801	0.277	0.002
Total PSQI score	0.523	< 0.0001	0.589	< 0.0001

SAS: Self-rating anxiety scale; SDS: Self-rating depression scale; PSQI: Pittsburgh sleep quality index.