Table 2.
Summary of studies’ basic information.
| Study, year | Health care setting | Publicly available data set | Data source | Region | Data year | Sample size |
| Inselman et al [27], 2022 | Secondary care | No | Single modality | United States | 2003-2020 | 3057 |
| Hurst et al [25], 2022 | Both | No | Multimodality | United States | 2014-2019 | 5982 |
| Hogan et al [28], 2022 | Secondary care | No | Single modality | United States | 2013 | 18,489 |
| Zein et al [29], 2021 | Both | No | Single modality | United States | 2010-2018 | 60,302 |
| Sills et al [30], 2021 | Secondary care | No | Single modality | United States | 2009-2013 | 9069 |
| Hozawa et al [31], 2021 | Secondary care | No | Single modality | Japan | 2016-2017 | 42,685 |
| Lisspers et al [32], 2021 | Both | No | Single modality | Sweden | 2000-2013 | 29,396 |
| Ananth et al [23], 2021 | Secondary care | No | Multimodality | United Kingdom | 2018-2020 | 200 |
| Tong et al [33], 2021 | Both | No | Single modality | United States | 2011-2018 | 82,888 |
| Mehrish et al [24], 2021 | Secondary care | No | Multimodality | United States | 2013-2017 | 10,000 |
| Xiang et al [4], 2020 | Both | No | Single modality | United States | 1992-2015 | 31,433 |
| Cobian et al [34], 2020 | Both | No | Single modality | United States | 2007-2011 | 28,101 |
| Luo et al [35], 2020 | Both | No | Single modality | United States | 2005-2018 | 315,308 |
| Roe et al [22], 2020 | Secondary care | Yes | Single modality | United States | 2001-2012 | 38,597 |
| Luo et al [26], 2020 | Both | No | Single modality | United States | 2012-2018 | 397,858 |
| Wu et al [21], 2018 | Primary care | No | Single modality | United States | 1997-2002 | 4013 |
| Patel et al [11], 2018 | Secondary care | No | Multimodality | United States | 2012-2015 | 29,392 |