“…Attempted to contact author but no response Li et al (2017) [100] Wrong outcomes Not reporting 30-day mortality of all those getting PR Nieder et al ( 2017) [101] Wrong outcomes Not reporting those who died within 30 days of PR Futagami et al ( 2016) [102] Wrong outcomes 30-day mortality of those getting chemotherapy for gynaecological cancers Clement-Zhao et al ( 2018) [103] Wrong outcomes This study did not obtain a 30-day mortality rate after PR Huang J et al ( 2014) [104] Wrong population Participants included had ''invasive cancer", clarification requested from authors if this population had advanced or metastatic cancer, but no reply Gallais Serezal et al ( 2016) [105] Wrong study design Participants were all those who died in nation-wide register, but would have excluded patients dying at home or resident to a care-home Dennis et al (2011) [106] Wrong outcomes Efficacy of PR studies Becerra et al ( 2018) [107] Wrong outcomes Not able to confirm total that had palliative radiotherapy with the authors [78] Wrong study design Mix of palliative and curative RT population included, and authors not able to give totals of PR participants only. Caussa et al (2011) [109] Wrong outcomes Patients who died within 30 days of their PR not provided, unable to contact authors Spencer et al (2019) [110] Wrong outcomes Attempted to get unpublished data for 30-day mortality after PR but authors not able to provide Gripp et al (2010) [12] Wrong outcomes Study not differentiating those getting PR vs. curative intent radiotherapy Varma et al (2017) [111] Wrong outcomes 30 day mortality after PR not reported, attempted to contact author but unable to Sun et al (2021) [112] Wrong outcomes 30 day mortality after PR not reported, attempted to contact author but unable to Berger et al (2014) [114] Wrong outcomes Total that had PR not reported Cassidy et al (2018) [115] Wrong outcomes Not reporting 30-day mortality after PR. Attempted to contact author but unsuccessful Panoff et al (2015) [116] Wrong population Mix of curative and palliative patients reported Tiwana et...…”