Fig. 4
Forest plot of ALB at different time points with the combination therapy compared with traditional therapy. Compared with the traditional therapy group, ALB in the combination therapy group was nonsignificantly higher at 1 week (P > 0.05), significantly higher at 2, 4, 12, 24, 36, and 48 weeks (P < 0.05). Since significant heterogeneity was observed in one group (I2 = 60%), a random-effects model was used. In the plane rectangular coordinate system, the forest plot takes a vertical invalid line (scale of abscissa is 0) as the center, describes the effect quantity and 95% CI of each study by using multiple line segments parallel to the horizontal axis, and describes the effect quantity and confidence interval of multiple studies by using a diamond. ALB, albumin; CI, confidence interval; SMD, standardized mean difference