Endoscopic Treatment of Zenker’s Diverticulum: Comparable Treatment Outcomes in Treatment-Naïve and Pretreated Patients

Table 3

Frequency of symptoms of all patients before, one month, and six months after the initial treatment (mean value).

	Before	1 month	6 months
	Dysphagia	3.45	0.62	1.09
Odynophagia	1.45	0.22	0.36
Regurgitation	2.85	0.30	0.56
Halitosis	1.15	0.25	0.27
Vomiting	0.79	0.13	0.09
Nocturnal awakening	1.97	0.05	0.23
Dry cough	2.85	0.78	0.98

Values express the following frequency scores: 0: never, 1: <1x/month, 2: >1x/month, 3: >1x/week, and 4: permanent.  = number of evaluated questionnaires. -test significance compared to the value prior to the first treatment.