. Author manuscript; available in PMC: 2025 Jan 27.

Published in final edited form as: JCO Clin Cancer Inform. 2023 Aug;7:e2300049. doi: 10.1200/CCI.23.00049

Table 1.

Dataset details for each model

	Dataset
Study	Size	Median follow-up time (years)	Age range		Distribution	Source	Availability

[16]	586	12	39 88	-	-	Istituto Nazionale dei Tumori of Milan, Italy (INT)	-

[17]	1868	5.6	25 89	-	R:11%, NR:89%¹	Memorial Sloan-Kettering Cancer Center	-

[18]	378	9	-		-	Central Pathology Office in Milan, Italy	-

[19]	679	8	-		R:71%, NR:29%	Korean tertiary teaching hospital	-

[20]	579	16	37 57	-	R:19%, NR:81%	Isfahan Sayed-o-Shohada cancer research center	-

[21]	679	7.1	21 83	-	R:29%, NR:71%	Korean tertiary teaching hospital	-

[22]	15314	6.09	19 98	-	R:12%, NR:88%	University of Texas MD Anderson Cancer Center	-

[23]	217	10	32 85	-	27.64%, 23.50%, 23.50%, 25.34%²	Omid Hospital of Mashhad	-

[34]	4735	9.8	57 71	-	R:7%, NR:93%	ATAC (Arimidex, Tamoxifen, Alone or in Combination) dataset	Dataset link

[24]	192	5	25 67	-	LR:22%, IR:64%, HR:14%³	Single institute in Korea	-

[25]	217	-	-		R:40%, NR:60%	Grade-A3 hospital in eastern China	-

[26]	6447	3.99	-		R:7%, NR:93%	Northwestern Memorial Hospital	-

[27]	320	6	30 84	-	LR:45%, IR:44%, HR: 11%	3 French hospitals: Besançon, Belfort and Dijon	-

[35]	1984	6	-		R:24%, NR:76%	UCI Machine Learning Repository	Dataset link

¹R: Recurrent cases, NR: Non recurrent cases.
²Four classes distributed according to the time to recurrence (0–149 months).
³LR: Low risk of recurrence, IR: Intermediate risk, HR: High risk.
⁴The study used two datasets for model training, but we only considered the dataset on which the model performed the best.

	Dataset
Study	Size	Median follow-up time (years)	Age		Distribution	Source	Availability

[28]	575	7	-			Mizoram Cancer Institute	-

[29]	13117	6	43 55	-	R:9%, NR:91%¹	Samsung Medical Center	-

[36]	127	8	-		R:25%, NR:75%	Cancer Hospital of the Chinese Academy of Medical Sciences	Dataset link

[30]	8956	7.46	41 67	-	-	Oncoshare breast cancer database from Stanford University	-

[31]	138	-	27 86	-	LR:60%, HR:40%²	Taipei Veterans General Hospital	-

[14]	3532	9	45 70	-	-	Five North American institutions	-

[32]	4757	4	20 70+	-	R:4%, NR:96%	Japanese Association for Theranostics	-

[15]	64044		15 85+	-		SEER database, U.S. National Cancer Institute	Dataset link

[33]	6486	4.75	20 90	-	R:8%, NR:92%	29 hospitals affiliated with the Chinese Society of Breast Surgery hospitals	-

¹R: Recurrent cases, NR: Non recurrent cases.
²LR: Low risk of recurrence, HR: High risk.