Pulmonary Complications after Surgery for Rectal Cancer in Elderly Patients: Evaluation of Laparoscopic versus Open Approach from a Multicenter Study on 477 Consecutive Cases

Table 3

Multivariate analysis of PPC occurrence after adjusting for major patients and tumour characteristics.

Variable	OR	95% CI	value
Gender	1.069	0.359–3.183	0.905
Open surgery	1.037	1.009–1.052	0.002
VAS 48 hours	1.939	1.250–3.008	0.003
Operative time	1.009	1.001–1.018	0.003
Age	1.039	0.944–1.145	0.433
ASA score	1.555	0.651–3.716	0.321
Weight habit	1.367	0.653–2.866	0.407
Smoke	1.336	0.416–4.291	0.627
COPD	1.694	0.422–6.808	0.458
Diabetes	0.822	0.219–3.086	0.772
Hypertension	1.134	0.352–3.650	0.833
T stage	1.700	0.835–3.462	0.143
Tumour localization	0.731	0.328–1.631	0.444