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Table 2 Perioperative variables of patients with or without PPCs

From: Accumulative occlusion time correlates with postoperative pulmonary complications in patients undergoing pelvic and sacrum tumor resection assisted by abdominal aortic balloon occlusion: a retrospective cohort study

VariablesOverall (n = 584)With PPCs (n = 91)Without PPCs (n = 493)P value
Age (y)45.5 (31–55)51 (36–62)44 (30–54)<  0.001
Gender, male (%)307 (52.6%)43 (47.3%)264 (53.6%)0.269
BMI23.0 (20.3–25.3)23.0 (20.0–25.7)22.9 (20.4–25.1)0.775
ASA grade   0.001
 Grade I (%)158 (27.1%)15 (16.5%)143 (29.0%) 
 Grade II (%)388 (66.4%)63 (69.2%)325 (65.9%) 
 Grade III (%)38 (6.5%)13 (14.3%)25 (5.1%) 
Pulmonary co-morbidities (%)63 (10.8%)12 (13.2%)51 (10.3%)0.422
Current smoker (%)64 (11.0%)14 (15.4%)50 (10.1%)0.141
Preoperative Albumin (g/L)41.3 (38.8–44)40.7 (37.1–43.3)41.4 (39.0–44.1)0.066
Preoperative Hemoglobin (g/L)130 (118–142)128 (113–142)130 (119–142)0.307
Estimated blood loss (L)1.5 (0.8–2.5)2.15 (1.0–3.9)1.5 (0.8–2.2)<  0.001
Duration of surgery (h)4.1 (3.2–5.6)5.2 (3.5–7.1)4.0 (3.1–5.3)<  0.001
Accumulative occlusion time (min) occlusion time (min)80 (58–104.5)91 (66–129)77 (57–102)<  0.001
≥ 119 min (%)85 (14.6%)29 (31.9%)56 (11.4%)< 0.001
Length of stay (d)22 (18–28)27 (20–36)22 (18–27)< 0.001
  1. The data are presented as the median (25–75% interquartile range) or number (percentage)
  2. Abbreviation: PPCs postoperative pulmonary complications, BMI body mass index, ASA American Society of Anesthesiologists