Effect of stratified management and stepwise training on pulmonary rehabilitation in older patients with liver cancer

Table 6 Comparison of postoperative complication incidence between groups, n (%)

Group	Number of cases	Atelectasis	Pleural effusion	Abdominal infection	Total occurrences
Study group	60	0 (0)	2 (3.33)	0 (0)	2 (3.33)
Control group	60	4 (6.67)	3 (5.0)	1 (1.67)	8 (13.33)
t					3.927
χ2					0.04