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Table 1 Characteristics of included studies

From: Performance of ultrasonography screening for breast cancer: a systematic review and meta-analysis

Author, year Country Age, years PerDB, % Type of US Sample size Screening mode Exclusion of BC Blinding Complete data BIRADS criteria FU, months Quality assessment Cohort type
Supplemental US screening studies
 Tagliafico, 2016 [21] Italy [21] 51 100 HHUS 3231 Community Yes Yes No < 12 Fair Prospective
 Kim, 2016 [22] South Korea NR 100 HHUS 3171 Opportunistic Yes Yes No 12 Fair Retrospective
 Weigert, 2015 [26] United States NR 100 HHUS 10,282 Opportunistic NR Yes Yes 6 Fair Retrospective
 Hwang, 2015  [25] South Korea 50 78 HHUS 1727 Opportunistic No No Yes 12 Fair Retrospective
 Moon, 2015 [24] South Korea 53 64 HHUS 2005 Opportunistic NR Yes Yes 24 Fair Retrospective
 Parris, 2013 [28] United States 52 100 HHUS 5519 Opportunistic No Yes Yes NR Fair Retrospective
 Girardi, 2013 [27] Italy 51 45 HHUS 22,131 Opportunistic No Yes Yes NR Fair Retrospective
 Leong, 2012 [32] Singapore 45 100 HHUS 106 Community No Yes No 12–24 Fair Prospective
 Hooley, 2012 [31] United States 52 100 HHUS 648 Opportunistic No Yes Yes > 15 Fair Retrospective
 Corsetti, 2011 [33] Italy NR 100 HHUS 3356 Opportunistic Yes Yes No 12 Fair Retrospective
 Youk, 2011 [34] South Korea 48 100 HHUS 446 Opportunistic No Yes Yes 24 Fair Retrospective
 Brancato, 2007 [36] Italy 52 100 HHUS 5227 Opportunistic NR Yes Yes NR Fair Prospective
Joint screening studies
 Dong, 2017 [9] China 52 44 HHUS 31,918 Community Yes Yes Yes No 12 High Prospective
 Ohuchi, 2016 [10] Japan 44 NR HHUS 36,752 Community Yes Yes Yes Yes 12 High Prospective
 Berg, 2016 [11] United States 55 100 HHUS 2662 High-risk Yes Yes Yes Yes > 12 High Prospective
 Shen, 2015 [23] China 46 NR HHUS 4135 High-risk Yes Yes No Yes 12 High Prospective
 Brem, 2015 [39] United States 53 100 ABUS 15,318 Community Yes No Yes Yes 12 High Prospective
 Huang, 2012 [30] China 46 48 HHUS 3028 Opportunistic Yes Yes Yes Yes 12 High Prospective
 Kelly, 2010 [40] United States 53 68 ABUS 4419 High-risk No Yes Yes Yes 12 High Prospective
 Wilczek, 2016 [38] Sweden 50 100 ABUS 1668 Community Yes No Yes No 24 Fair Prospective
 Venturini, 2013 [29] Italy 46 55 HHUS 1666 Community Yes No No Yes 6 Fair Prospective
 Weinstein, 2009 [35] United States 49 60 HHUS 609 High-risk No Yes No Yes 12 Fair Prospective
 Honjo, 2007 [37] Japan NR NR HHUS 3453 Community NR Yes Yes No ≥18 Fair Prospective
  1. PerDB Percent of women with dense breasts accounted for the whole population; US Ultrasonography; BC Breast cancer; BIRADS Breast Imaging-Reporting and Data System; FU Follow-up; HHUS/ABUS Hand-held / automated breast ultrasonography