Table 2.

Dysphagia scores based on the European Organisation for Research and Treatment of Cancer oesophago-gastric quality-of-life questionnaire (EORTC QLQ-OG25) for clinically complete responders after neoadjuvant chemoradiotherapy who underwent active surveillance

	Pretreatment	3 months	6 months	9 months	12 months	16 months
Median (i.q.r.)	11.1 (11.1–33.3)	0.0 (0.0–0.0)	0.0 (0.0–0.0)	0.0 (0.0–0.0)	0.0 (0.0–0.0)	0.0 (0.0–0.0)
Mean(s.d.)	21.7(19.0)	3.6(8.5)	1.3(4.0)	1.3(3.6)	1.9(4.8)	3.8(11.9)
Rate of participation*	65/131 (49.6%)	93/131 (71.0%)	77/118 (65.3%)	69/107 (64.5%)	66/104 (63.5%)	62/102 (60.8%)

The rate of participation is defined as the number of patients participating in the questionnaire at that particular time point divided by the total number of patients who did not develop a local recurrence in the oesophagus at that time point and not within the next 4 months. At pretreatment, only questionnaires were included that had been completed until a maximum of 7 days after the start of neoadjuvant chemoradiotherapy. i.q.r., interquartile range.