A Comparison of the Effectiveness of Surgical and Nonsurgical Treatment of Legg-Calve-Perthes Disease: A Review of the Literature

Table 3

Heterogeneity of research studies.

Treatment approaches	𝑃 value of λ²	𝐼^2 index value	Degree of heterogeneity
Containment methods	0–0.081	51.8–95.8	Substantial to considerable
Noncontainment methods	0.012–0.164	0.28–72.7	Not important to substantial
Nontreatment	0–0.183	38.14–96.66	Not important to considerable
Surgical methods	0	83–87.82	Considerable