Table 1 The table displays each included study the study characteristics between single versus multiple PEDs
No. | Author (year) | Study period | Study design | Country | Setting | Sample size (n) | Mean age (years) | Female (%) |
|---|---|---|---|---|---|---|---|---|
1 | Chalouhi (2014) [11] | May 2011 and May 2013 | Retrospective cohort | USA | Single center | 178 (126 versus 52) | 54.2 versus 61.1 (P = 0.002) | 86 versus 81 |
2 | Kabbasch (2016) [13] | March 2011 and December 2013 | Retrospective cohort | Germany | Single center | 37 (19 versus 18) | 53.6 ± 12 versus 55.8 ± 12.7 | 85 versus 78 |
3 | Waqas (2019) [12] | January 2013 and October 2017 | Retrospective cohort | USA | Single center | 119 (90 versus 29) | 57.7 ± 14.1 versus 55.9 ± 11.3 | 88.9 versus 79.3 |
4 | Link (2021) [1] | 2012 and 2017 | Retrospective cohort | USA | Single center | 140 (46 versus 94) | 55.6 ± 12.2 versus 53.5 ± 12.7 | 91.3 versus 85.1 |
5 | Vranic (2022) [7] | December 01, 2012 and January 15, 2020 | Retrospective cohort | Columbia USA | Multi Center | 298 (250 versus 48) | 54.2 ± 13 versus 58.3 ± 12.4 | 86 versus 81.2 |