Table 1 Output from the GAMM using epigenetic states (or epigenetic ages) estimated from EPM models as dependent variable

From: Hibernation slows epigenetic ageing in yellow-bellied marmots

 

Estimate

Standard error

t value

P value

e.d.f.

Reference d.f.

F

Random effect (animal ID)

Intercept

5.53

0.09

63.22

<0.0001

   

0.329

Residual

       

0.294

Smooth term: agea (cubic spline)

   

<0.0001

7.15

7.15

339.20

 

Smooth term: dateb (cyclic spline)

   

0.002

1.39

8.00

3.27

 
  1. aIndividual chronological age in years calculated from the first time an individual emerged from their mother’s burrow to the date they were captured.
  2. bDay of the year (values varied from 1 to 365, with 1 representing 1 May and 365 representing 30 April).
  3. t value is derived from the t statistic used in the GAMM to test for the significance of linear terms in the model.
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