Supplementary Table 2.

Clinical Information of Cohort 1b

Patient code	Biopsy code	Prague	Sex	Age at scope, y	Study	Smoking status	Hiatus hernia,acm	Body mass index, kg/m2
133	JE29 B4	C5M7	M	89	Sanger	No	Yes	27.8
180	JE81 B2	C1M6	M	66	Sanger	N/A	5	35.0
146	JE43 B2	C5M6	M	67	Sanger	N/A	N/A	N/A
107	JE01 squamous	C2M3	F	70	NGS	No	No	N/A
	JE01 BE
	JE01 cardia
110	JE04 squamous	C2M2	M	69	NGS	N/A	Yes	28.83
	JE04 BE
	JE04 cardia
119	JE14 squamous	C3M7	M	62	NGS	N/A	2	29.23
	JE14 BE
	JE14 cardia
122	JE17 squamous	C1M4	M	79	NGS	N/A	4	23.4
	JE17 BE
	JE17 cardia
123	JE18 squamous	C2M4	M	32	NGS	N/A	4–5	29.39
	JE18 BE
	JE18 cardia
126	JE21 squamous	C1M5	M	48	NGS	Ex	2	N/A
	JE21 BE
	JE21 cardia
135	JE31 squamous	C3M4	F	81	NGS	N/A	N/A	N/A
	JE31 BE
	JE31 cardia
143	JE39 squamous	C4M5	F	79	NGS	Ex	N/A	25.7
	JE39 BE
	JE39 cardia
108	JE41 squamous	C7M9	M	49	NGS	No	5	29.09
	JE41 BE
	JE41 cardia
149	JE46 squamous	C0M5	M	73	NGS	N/A	3	N/A
	JE46 BE
	JE46 cardia

ex, ex-smoker; F, female; M, male; N/A, not available; no, never smoked; yes, smoker.

^aYes indicates hiatus hernia present but length unknown.