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 |