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Retrospective Study
©The Author(s) 2025.
World J Gastrointest Surg. Sep 27, 2025; 17(9): 108621
Published online Sep 27, 2025. doi: 10.4240/wjgs.v17.i9.108621
Table 4 Comparison of extended respiratory function tests between two groups

Single-lumen group (n = 117)
Double-lumen group (n = 132)
t
P value
FEV1 (L)3.21 ± 0.583.15 ± 0.60.8040.422
FVC (L)4.05 ± 0.724 ± 0.750.6110.542
FEV1/FVC ratio (%)79.26 ± 5.3478.92 ± 5.410.4960.621
PEF (L/minute)480.23 ± 50.12475.89 ± 49.780.6850.494
DLCO (% predicted)85.12 ± 10.2584.78 ± 10.150.2650.791
Respiratory rate (breaths/minute)16.22 ± 2.0416.45 ± 2.100.8730.383


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