Table 3. Changes in State-Trait Anxiety Inventory Scores for the Augmented Reality Group Between Survey Points by Body Part^a.

Comparison	Knee		Shoulder		Elbow		P value
	No.	Mean (SD) [95% CI]	No.	Mean (SD) [95% CI]	No.	Mean (SD) [95% CI]
Screening vs postintervention survey	28	−3.7 (6.0) [−6.0 to −1.4]	5	1.0 (3.1) [−2.8 to 45.8]	2	−4.0 (5.7) [−54.8 to 46.8]	.24
Screening vs preoperative survey	33	−3.0 (7.8) [−5.8 to −0.3]	9	−0.22 (6.6) [−5.3 to 4.8]	3	−2.0 (2.6) [−8.6 to 4.6]	.60
Screening vs postoperative survey	31	−5.7 (9.2) [−9.1 to −2.4]	9	−6.3 (5.8) [−10.8 to −1.9]	3	−1.7 (6.0) [−16.6 to 13.3]	.70
Preoperative vs postoperative survey	31	−9 (7.9) [−11.9 to −6.1]	9	−6.6 (7.4) [−12.2 to −0.9]	3	−3.7 (4.2) [−14.0 to 6.7]	.41

^a Analyses were performed using analysis of variance. .