Table 4.
Age- and sex-adjusted values. Treatments were intrasphincteric botulinum toxin injection and balloon dilation. Balloon dilation resulted in a significantly longer symptom- free period than that of intrasphincteric botulinum toxin injection after correcting for other variables, such as age and sex (p = 0.036).
CI, confidence interval; LESP, lower esophageal sphincter pressure.
aCox regression test.