Association among preoperative comorbidities, targeted nursing interventions, and postoperative recovery in patients undergoing total gastrectomy for gastric cancer

Table 1 Baseline characteristics of patients stratified by comorbidity severity, mean ± SD

Variable	Comorbidity 0	Comorbidity 1	Comorbidity 2	P value
Age (year)	66.94 ± 9.51	68.54 ± 8.45	62.77 ± 11.87	0.172
Male sex, n (%)	104 (83.9)	30 (81.1)	10 (76.9)	0.785
BMI (kg/m2)	21.01 ± 1.08	20.59 ± 1.22	19.77 ± 1.43	< 0.001
Hemoglobin (g/dL)	13.38 ± 0.89	13.07 ± 0.86	12.60 ± 1.29	0.006
Albumin (g/L)	37.22 ± 1.86	34.34 ± 1.96	34.98 ± 1.57	< 0.001
ASA physical status				< 0.001
ASA I	24	1	0
ASA II	75	22	4
ASA III & IV	25	14	9

BMI: Body mass index; ASA: American Society of Anesthesiologists.