Table 3 Comparison of data between patients with complete reversal of Barrett's oesophagus and patients with residual intestinal metaplasia (IM) post ablation.

	Complete reversal (n = 24)	Residual IM (n = 11)	p Value
Age (y) (median (range))	61.5 (32–78)	66 (42–84)	0.13
No of treatments (median (range))	3 (2–6)	5 (2–6)	0.32
BO length (cm) (median (range))	3.5 (2–6)	3 (2–6)	0.85
24 hour pH monitoring
Total time pH <4 (%) (median (range))	0.5 (0–29.9)	0.7 (0–28.2)	1.0
Supine time pH <4 (%) (median (range))	0 (0–47.2)	0 (0–39.6)	0.54
Upright time pH <4 (%) (median (range))	0.6 (0–47.9)	1.1 (0–22.1)	0.76
No of patients with normal total pH study (%)	18 (75)	8 (72.7)	1.00
Abnormal	6 (25)	3 (27.3)
No of patients with normal supine pH study (%)	20 (83.3)	7 (63.6)	0.22
Abnormal	4 (16.7)	4 (36.4)
No of patients with normal upright pH study (%)	18 (75)	10 (90.9)	0.39
Abnormal	6 (25.0)	1 (9.1)
Hiatal hernia size (cm) (median (range))	3 (0–6)	3 (1–5)	0.22
Maintenance PPI dose (median (range))	30 (20–60)	20 (20–80)	0.57
Ablation therapy
APC	12 (50.0)	7 (63.6)	0.49
MPEC	12 (50.0)	4 (36.4)

BO, Barrett's oesophagus; PPI, proton pump inhibitor; APC, argon plasma coagulation; MPEC, multipolar electrocoagulation.