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Table 1 Comparison between group A: VCV and group B: PCV-VG according to the demographic data

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

Demographic data Group A: VCV (n = 30) Group B: PCV-VG (n = 30) t/x2# p value
Age (years)
Mean ± SD 31.20 ± 7.18 30.26 ± 6.96 1.735 0.116
Gender
Male 9 (30.0%) 7 (23.3%) 1.314# 0.256
Female 21 (70.0%) 23 (76.7%)
Duration of surgery (min)
Mean ± SD 140.40 ± 25.69 136.19 ± 24.92 0.229 0.620
  1. Data presented as mean ± SD
  2. t independent sample t test, #x2 chi-square test, P value > 0.05 NS
  3. *P value < 0.05 S
  4. **P value < 0.001 HS
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