Table 3.

A subgroup analysis among patients with normal expander position.

Variables	Adjusted odds ratio	95% CI (Lower)	95% CI (Upper)	P value
Implant position (ref: I)
II	4.2	1.6	11.0	.004
III	18.6	3.7	93.0	<.001
Age	1.0	1.0	1.1	.160
Implant volume	1.0	1.0	1.0	.621
Timing (ref: immediate)	0.8	0.3	2.3	.724
Years after implant insertion	1.0	0.7	1.3	.995