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Table 1 Comparisons of baseline characteristics in three groups

From: Effects of ultrasound-guided alveolar recruitment manoeuvres compared with sustained inflation or no recruitment manoeuvres on atelectasis in laparoscopic gynaecological surgery as assessed by ultrasonography: a randomized clinical trial

Baseline characteristics C group SI group UD group F P value
Age(yrs) 50.20 ± 8.58 50.27 ± 9.03 47.20 ± 9.27 1.146 0.323
Height(cm) 158.37 ± 5.68 157.50 ± 3.82 157.30 ± 4.17 0.45 0.639
Weight(kg) 57.60 ± 7.45 55.70 ± 6.65 53.87 ± 7.11 2.085 0.131
PBW(kg) 50.93 ± 5.17 50.14 ± 3.48 49.96 ± 3.79 0.45 0.639
Duration of surgery(min) 137.33 ± 17.80 135.73 ± 17.93 137.67 ± 20.00 0.093 0.912
Duration of Anesthesia(min) 156.20 ± 17.55 153.83 ± 18.89 160.10 ± 20.09 0.844 0.434
Urine output(ml) 325.67 ± 93.76 308.67 ± 81.86 312.33 ± 128.32 0.225 0.799
Fluid infusion
Volume(ml)
1363.33 ± 239.95 1490.00 ± 259.11 1446.67 ± 214.53 2.185 0.119
Blood loss(ml) 184.33 ± 48.40 202.67 ± 55.77 186.67 ± 73.03 0.831 0.439