Table 4.

Outcome reporting in included studies

	No. of studies reporting outcomes (n = 39)	Range of rates reported (%)*
Adverse events
Device removal	27	0·5–8·3
Device erosion	8	0·1–1·2
Need for dilatation	22	2–67
Readmission to hospital within 30 days	13	1·3–5·4
Mortality	3	0
Clinical
DeMeester score	7	–
Manometry	4	–
Oesophageal pH testing	10	–
Oesophagogastroduodenoscopy	13	–
Barium swallow	7	–
Proton pump inhibitor use	25	–
Process
Duration of operation (min)	16	23–184†
Duration of hospital stay (days)	13	0–3†
Patient‐reported outcomes
GERD‐HRQL score	31	–
Other validated patient‐reported outcomes	7	–
Non‐validated patient‐reported outcome	5	–
Economic
Costs associated with device	1	–

^*Unless indicated otherwise;

^†values are median (range). GERD‐HRQL, gastro‐oesophageal reflux disease – health‐related quality of life.