Effect of combined pulmonary-psychological nursing on posttraumatic stress disorder in patients with acute respiratory distress syndrome

Table 2 Comparison of clinical characteristics between two groups of patients, mean ± SD/n (%)

Parameters	RC group (n = 125)	SPRNCPI group (n = 105)	t/χ2	P value
Lung injury score	2.65 ± 0.35	2.74 ± 0.44	1.708	0.089
Severity grading			0.442	0.506
Moderate	93 (74.40)	74 (70.48)
Severe	32 (25.60)	31 (29.52)
Causes			0.952	0.813
Trauma	30 (24.00)	31 (29.52)
Sepsis	39 (31.20)	31 (29.52)
Pneumonia	44 (35.20)	33 (31.43)
Other or unknown	12 (9.60)	10 (9.52)
APACHE II score	14.47 ± 2.35	14.12 ± 1.26	1.434	0.153
SOFA score	7.25 ± 1.58	7.19 ± 1.63	0.298	0.766
Length of hospital stay (days)	28.53 ± 5.77	28.28 ± 2.72	0.440	0.661
Length of ICU stay (days)	15.02 ± 1.06	14.97 ± 1.08	0.370	0.712
Ventilation duration (days)	9.53 ± 2.68	9.39 ± 1.71	0.477	0.634
Duration of respiratory failure (days)	8.93 ± 1.12	9.11 ± 1.16	1.230	0.220

APACHE II: Acute Physiology and Chronic Health Evaluation II; SOFA: Sequential Organ Failure Assessment; ICU: Intensive care unit; RC: Routine care; SPRNCPI: Staged pulmonary rehabilitation nursing combined with cognitive psychological intervention.