Table S3. True and estimated of lead time (year) for screen-detected patients.

ESD	Min	Q5	Q25	Q50	Q75	Q95	Max
ESD, esophageal squamous dysplasia.
Total
Estimator	1.67	3.21	4.07	4.62	5.11	5.56	5.78
True	0.01	1.52	3.41	4.64	6.02	8.13	15.14
Mild
Estimator	1.67	3.34	4.20	4.72	5.18	5.43	5.56
True	0.01	1.04	2.80	4.11	5.50	7.70	12.29
Moderate
Estimator	1.98	3.15	3.99	4.53	5.05	5.56	5.56
True	0.05	2.22	3.69	4.87	6.03	7.92	12.38
Severe
Estimator	2.14	3.03	3.80	4.40	4.97	5.69	5.78
True	1.67	3.22	4.61	5.75	7.11	9.12	15.14