Study on the correlation between insomnia degree and quality of life in psychiatric outpatients in Chifeng city

Table 2 Comparison of self-rating anxiety scale and self-rating depression scale in patients with different degree of primary insomnia

Index		SDS score	SAS score
Degree of insomnia	Mild (n = 137)	46.80 ± 5.07	41.85 ± 5.89
	Moderate (n = 162)	52.75 ± 5.57	47.65 ± 5.57
	Severe (n = 46)	58.15 ± 5.05	53.07 ± 5.87
F		93.437	77.122
P value		< 0.001	< 0.001

This table compares the depression self-rating depression scale (SDS) and anxiety self-rating anxiety scale (SAS) scores of patients with different degrees of insomnia by one-way analysis of variance (ANOVA). The results showed a significant increase in SDS and SAS scores as the degree of insomnia increased (P < 0.001). SDS: Self-rating depression scale; SAS: Self-rating anxiety scale.