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Table 2 Comparison between group A: VCV and group B: PCV-VG according to the type of surgery

From: Comparison between volume-controlled ventilation and pressure-controlled volume-guaranteed ventilation in postoperative lung atelectasis using lung ultrasound following upper abdominal laparotomies: a prospective randomized study

Type of surgery Group A: VCV (n = 30) Group B: PCV-VG (n = 30) x2 p value
Panhysterectomy 12 (40.0%) 13 (43.3%) 0.052 0.862
Ovariectomy 8 (26.7%) 9 (30.0%) 0.052 0.862
Right hemicolectomy 2 (6.7%) 2 (6.7%) 0.000 1.000
Partial gastrectomy 2 (6.7%) 1 (3.3%) 0.052 0.862
Open cholecystectomy 4 (13.3%) 3 (10.0%) 0.052 0.862
Spleenectomy 2 (6.7%) 2 (6.7%) 0.000 1.000
  1. Data are presented as the number of cases and the percentage of each to the total number of cases in each group
  2. x2 chi-square test; P value > 0.05 NS
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