Analysis of the impact of ERAS-based respiratory function training on older patients’ ability to prevent pulmonary complications after abdominal surgery

Table 4 Comparison of main outcomes between enhanced recovery after surgery group and control group

Parameter	ERAS group	Control group	P value
Main outcome
Respiratory tract infection	21 (18.75%)	41 (34.45%)	0.007
New/changed X-ray findings	48 (42.86%)	64 (53.78%)	0.114
White blood cell more than 12	39 (34.82%)	56 (47.06%)	0.063
Temperature more than 38 degree centigrade	37 (33.04%)	54 (45.38%)	0.060
Positive sputum bacteria	19 (16.96%)	31 (26.05%)	0.111
Antibiotic therapy	22 (19.64%)	40 (33.61%)	0.018
Secondary results
Preoperative hospitalization time more than 2 d	59 (52.68%)	65 (54.62%)
Preoperative hospitalization time more than 2 d in patients with respiratory tract infection	11 (9.82%)	24 (20.17%)	0.029
The postoperative length of stay in d	9.5 (3-21)	11 (4-18)	0.028
FEV1/FVC more than 70%	86 (76.79%)	74 (62.18%)	0.022

ERAS: Enhanced recovery after surgery; FEV1: Forced expiratory volume in 1s; FVC: Forced vital capacity.