Baseline characteristics
The incidence of postoperative severe ALI was 27.5% in this study,
which included 404 male (84.3%) and 75 female patients (15.7%), with a
mean age of 51.96 ± 10.75 years. Postoperative non-severe and severe ALI
groups contained 347 and 132 patients, respectively. Surprisingly,
patients in the postoperative non-severe ALI group appeared to be older
than those in the postoperative severe ALI group (52.48 ± 10.77 versus
50.61 ± 10.61, respectively; P = 0.089); however, the difference was not
statistically significant. In the postoperative severe ALI group, more
patients were obese, and more patients had hypertension and coronary
heart disease (CHD) compared to the non-severe ALI group (Table 1).
[Insert Table 1 here]