Table 3:

Comparing mean labyrinthitis ossificans grade by chronic otomastoiditis^{^a}

	Mean (SE)		P Value
	No Chronic Otomastoiditis (n = 35)	Chronic Otomastoiditis (n = 23)	P Value
Apical turn of cochlea^{^b}	0.79 (0.29)	0.82 (0.35)	.947
Middle turn of cochlea^{^b}	0.80 (0.28)	0.96 (0.34)	.720
Basal turn of cochlea^{^b}	0.98 (0.29)	1.23 (0.35)	.578
Vestibule	0.44 (0.22)	0.76 (0.27)	.347
Lateral semicircular canal	1.81 (0.23)	1.74 (0.28)	.853
Posterior semicircular canal	1.13 (0.26)	1.54 (0.33)	.328
Superior semicircular canal	0.75 (0.26)	1.39 (0.32)	.136

Note:—n indicates the number of ears; SE, standard error.
↵a LO grade for each structure within the membranous labyrinth is reported stratified by risk factor. P value is from a mixed-effects model.
↵b Analysis based on 57 ears (34 with no chronic otomastoiditis and 23 with chronic otomastoiditis).