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

Table 2 Comparison of perioperative and acute respiratory distress syndrome-related variables between groups in the retrospective cohort, n (%)/mean ± SD

Indicators	Positive outcome group (n = 113)	Negative outcome group (n = 87)	χ2/t	P value
Surgical method
Thoracoscope	78 (69.03)	72 (82.76)	4.238	0.040
Thoracotomy	35 (30.97)	15 (17.24)
Resection range
Segmentectomy/wedge resection	17 (15.04)	13 (14.94)	0.246	0.884
Lobectomy	79 (69.91)	63 (72.41)
Total pneumonectomy	17 (15.04)	11 (12.64)
Acute respiratory distress syndrome classification
Mild	37 (32.74)	48 (55.17)	12.101	0.002
Moderate	46 (40.71)	29 (33.33)
Severe	30 (26.55)	10 (11.49)
Mechanical ventilation time (days)	5.05 ± 1.88	4.13 ± 1.76	3.573	< 0.001
Intensive care unit stay time (days)	7.37 ± 2.37	6.38 ± 2.10	3.114	0.002
Numerical Rating Scale score for postoperative pain (points)	4.98 ± 1.14	4.59 ± 1.11	2.446	0.015
Albumin on postoperative day 3 (g/L)	36.21 ± 3.30	36.91 ± 3.34	-1.473	0.142
Postoperative delirium	36 (31.86)	13 (14.94)	6.717	0.010
Postoperative pulmonary complications	27 (23.89)	24 (27.59)	0.185	0.667