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. 2015 Aug 22;282(1813):20151180. doi: 10.1098/rspb.2015.1180

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© 2015 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 1. — Dynamical behaviour of depression status between samples as a function of N friends or D friends for observed data (and 50% CI), transmission and no-transmission models. Uncertainty in the observed values was quantified using Jeffreys intervals [21]. The ΔAIC value is calculated by subtracting the no-transmission AIC value from the transmission AIC value. (a) Probability of transitioning from healthy mood to low mood against number of D friends—transmission is not preferred to no transmission (ΔAIC ≈ −4). (b) Probability of recovering from low mood against number of D friends—transmission is not preferred to no transmission (ΔAIC ≈ −0.9). (c) Probability of transitioning from healthy mood to low mood against number of N friends—transmission is preferred to no transmission (ΔAIC ≈ 8.4). (d) Probability of recovering from low mood against number of N friends—transmission is preferred to no transmission (ΔAIC ≈ 4.5).