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Table 2 The best PGLS model (with the lowest AIC value) for the relationship between longevity and oxidative stress based on 78 bird species without including sampling effort (number of publications)

From: Long-lived birds suffer less from oxidative stress

Variables Coefficient Standard error t p
Intercept 0.922 0.118 7.819 < 0.001
TAS 0.062 0.036 1.735 0.087
MDA − 0.038 0.017 − 2.176 0.033
Body mass 0.154 0.038 4.097 < 0.001
  1. Values in italics are statistically significant at the 0.05 level