Innovative integration of lung ultrasound and wearable monitoring for predicting pulmonary complications in colorectal surgery: A prospective study

Figure 3 Comparison of step counts in patients with the largest increase of pulmonary ultrasound between different postoperative days and mean step counts of all patients. A: Patients with the largest increase in pulmonary ultrasound score between postoperative day (POD) 1 and POD2, n = 79, P < 0.05; B: Patients with the largest increase in pulmonary ultrasound score between POD2 and POD3, n = 11, P < 0.05. POD: Postoperative day.