Living bio-drug therapies using mesenchymal stem cells and exosomes for mechanically ventilated patients with acute respiratory distress syndrome: A systematic review and meta-analysis

Figure 3 Forest plots showing duration of mechanical ventilation and ventilation-free days in patients treated with mesenchymal stem cells vs control. A: Forest plots showing duration of mechanical ventilation in patients treated with mesenchymal stem cells vs control; B: Forest plots showing ventilation-free days in patients treated with mesenchymal stem cells vs control. The pooled weighted mean difference, along with its 95% confidence interval, is presented. Each square represents the effect estimate of an individual study, with the size proportional to its weight in the meta-analysis; horizontal lines denote the 95% confidence interval. The diamond indicates the overall pooled effect. MSC: Mesenchymal stem cell; CI: Confidence interval.