Psychiatric symptoms in patients with lung cancer following postoperative acute respiratory distress syndrome

Table 3 Distribution of anxiety, depression, and sleep disturbance in patients with different severity of acute respiratory distress syndrome, n (%)/mean ± SD

Indicators	Mild (n = 85)	Moderate (n = 75)	Severe (n = 40)	χ2/F	P value
Anxiety	15 (17.65)	17 (22.67)	11 (27.50)	1.368	0.505
Depression	9 (10.59)	15 (20.00)	12 (30.00)	7.045	0.030
Sleep disturbances	21 (24.71)	26 (34.67)	24 (60.00)	15.138	0.001
Composite outcome	37 (43.53)	46 (61.33)	30 (75.00)	10.432	0.005
HADS-A (points)	6.02 ± 2.25	7.58 ± 2.10	8.59 ± 2.36	18.521	< 0.001
HADS-D (points)	4.98 ± 2.71	6.51 ± 2.29	7.50 ± 3.02	13.245	< 0.001
PSQI (points)	5.67 ± 2.42	8.69 ± 2.63	10.81 ± 3.08	53.874	< 0.001

χ² test was used for classified variables (χ²) and analysis of variance (F) was used for continuous variables. HADS-A: Hospital Anxiety and Depression Scale-Anxiety; HADS-D: Hospital Anxiety and Depression Scale-Depression; PSQI: Pittsburgh Sleep Quality Index.