Effect of continuous nursing combined with respiratory exercise nursing on pulmonary function of postoperative patients with lung cancer

Table 2 Comparison of pulmonary function indicators between the two groups (mean ± SD)

Indicators	Time	Test group, n = 40	Control group, n = 40	t value	P value
SpO2 (%)	Before the intervention	95.68 ± 10.26	95.35 ± 10.17	0.144	0.885
	3 mo after the intervention	98.86 ± 4.26	96.04 ± 3.57	3.209	0.002
VC (L)	Before the intervention	2.96 ± 0.36	2.91 ± 0.33	0.648	0.519
	3 mo after the intervention	3.64 ± 0.63	3.18 ± 0.46	3.567	< 0.001
MVV (L/min)	Before the intervention	83.74 ± 4.18	83.92 ± 4.24	0.191	0.849
	3 mo after the intervention	89.46 ± 7.56	85.02 ± 6.38	2.839	0.006
FEV1 (L)	Before the intervention	1.53 ± 0.24	1.57 ± 0.25	1.095	0.276
	3 mo after the intervention	2.56 ± 0.76	2.09 ± 0.53	3.208	0.002
FEV1% pred (%)	Before the intervention	61.27 ± 8.03	60.94 ± 7.42	0.191	0.849
	3 mo after the intervention	69.48 ± 9.35	63.56 ± 7.94	3.052	0.003
FEV1/FVC (%)	Before the intervention	67.22 ± 8.37	67.16 ± 8.24	0.032	0.974
	3 mo after the intervention	76.82 ± 10.46	70.05 ± 9.68	3.004	0.003

SpO₂: Oxygen saturation; VC: Vital capacity; MVV: Maximum ventilation; FEV1: Forced expiratory volume in the first second; FEV1% pred: FEV1 percentage of predicted value; FEV1/FVC: FEV1 percentage of vital capacity.