Table 2. Patient demographics.

	Total (n = 49)	BTX Only (n = 32)	BTX and Myotomy (n = 17)
Male	19 (39%)	9 (28%)	10 (58%)
Female	30 (61%)	23 (71%)	7 (41%)
Number deceased	8 (16%)	6 (19%)	2 (12%)
Mean age and range (y)	59 (27-91)	61 (34-91)	54 (27-83)
Feeding tube	7 (14%)	3 (9%)	4 (23%)
Aspiration pneumonia	5 (10%)	2 (6%)	3 (18%)
Prior head and neck irradiation	4 (8%)	3 (9%)	1 (6%)
Prior head and neck surgery	15 (30%)	7 (22%)	8 (47%)
Prior CVA	2 (4%)	0	2 (12%)
History of neurodegenerative disease	24 (49%)	17 (53%)	7 (41%)
Esophageal dysfunction or dysmotility	12 (24%)	9 (28%)	3 (18%)

BTX — botulinum toxin.