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. 2019 Apr 18;14(4):e0215462. doi: 10.1371/journal.pone.0215462

Table 3. General linear model of the effects of fertility rate and adult female mortality on the mean age at menarche calculated for 89 countries.

Covariate Estimate Standard error t-value p-value
Intercept 12.277 0.181 67.673 <0.001
Fertility rate 0.196 0.074 2.651 0.009
Adult female mortality 0.003 0.001 2.209 0.029

AIC = 203.81