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Table 5 Previous studies reporting the age on the outcomes of CRC patients

From: The short-term and oncologic outcomes of younger VS older colorectal cancer patients undergoing primary surgery: a propensity score matching analysis

Author Year Country Sample size Cut-off age (years) Younger group Older group Patients Outcomes
Nakayama Y [8] 2020 Japan 5602 40 359 5243 Stage II-III CRC OS, DFS
Zhao L [9] 2017 China 995 35 68 927 Stage I-III CRC OS, DFS, CSS
Fu JF [10] 2013 China 1335 30 42 1239 Stage I-IV CRC OS
Shida D[11] 2018 Canada 861 40 66 795 Stage IV CRC OS
Wang L [12] 2020 Japan 3095 45 139 2956 Stage I-III CRC DFS, CSS, Short-term outcomes (Using PSM)
Yang Z [15] 2012 Japan 3156 45 530 2626 Stage I-IV CRC OS, DFS, CSS
Quah HM [16] 2007 USA 1327 40 68 1259 Stage I-III CC OS, CSS
Schellerer VS [17] 2012 Germany 1962 50 244 1718 Stage I-IV CRC OS, CSS, Short-term outcomes
Wong SW [18] 2021 Malaysia 2127 50 206 1921 Stage I-IV CRC OS, CSS
  1. Abbreviations: CRC colorectal cancer; CC colon cancer; OS overall survival; DFS disease-free survival; CSS cancer-specific survival; PSM propensity score matching