Table 2.

Sub-group analysis of the final implant accuracy.

	Open Sleeves	Closed Sleeves
Angle (°)	3.3 ± 3.1° (range 0.2–11.8°; 95% CI 1.1 to 4.1°)	1.35 ± 1.57° (range 0.1–5.9°; 95% CI 0.19 to 1.25°)
Horizontal plan (mm)	0.87 ± 0.62 mm (range 0.2–2.53 mm; 95% CI 0.45 to 1.05 mm)	0.51 ± 0.38 mm (range 0.05–1.7 mm; 95% CI 0.29 to 0.55 mm)
Vertical plan (mm)	0.42 ± 0.33 mm (range 0.0–1.0 mm; 95% CI 0.19 to 0.51°)	0.32 ± 0.24 mm (range 0.05–1.3 mm; 95% CI 0.22 to 0.38 mm)