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Table 3 Proportion of EIN and IN failure stratified by ACI before and after IPTW

From: Necessity of external iliac lymph nodes and inguinal nodes radiation in rectal cancer with anal canal involvement

  Unweighted population Weighted population (IPTW)
  Rb group, n (%) P group, n (%) p Rb group, % P group, % p
Failure 66 26     
EIN (%) 2 (3.0) 2 (7.7) 0.316 2.6 9.0 0.058
IN(%) 2 (3.0) 7 (26.9) 0.002 2.9 26.9 0.000
  1. IPTW inverse probability of treatment weighting, EIN external iliac lymph nodes, IN inguinal nodes