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Retrospective Study
©The Author(s) 2025.
World J Gastrointest Surg. Dec 27, 2025; 17(12): 113408
Published online Dec 27, 2025. doi: 10.4240/wjgs.v17.i12.113408
Table 2 Baseline pulmonary function and exercise capacity characteristics in preoperative patients with esophageal cancer across study groups, mean ± SD
Variable
Overall (n = 306)
Control group (n = 163)
Experimental group (n = 143)
P value
Forced vital capacity3502.9 ± 841.83491.9 ± 845.23515.4 ± 840.60.808
FEV12734.4 ± 727.92705.2 ± 717.42767.8 ± 740.80.454
FEV1 to forced vital capacity ratio90.0 ± 17.690.4 ± 17.889.5 ± 17.50.675
Diffusing capacity of the lung for carbon monoxide19.8 ± 5.619.8 ± 5.319.9 ± 5.80.860
Maximum voluntary ventilation117.2 ± 38.4113.6 ± 37.4121.2 ± 39.30.084
Total lung capacity5964.4 ± 1146.75928.8 ± 1108.06005.1 ± 1192.00.562
Functional residual capacity2236.8 ± 428.02230.9 ± 427.32243.4 ± 430.30.799
6-minute walk distance449.1 ± 7.6449.7 ± 7.4448.4 ± 7.90.143
Modified Borg scale1 (0-3)1 (0-3)1 (0-2)0.821


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