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Table 3 Two-level random-intercept linear regression of duration of epidemics

From: A model for the co-evolution of dynamic social networks and infectious disease dynamics

  Empty CIDM
effects
Network
effects
Interaction
effects
Fixed effects (observed effects)
 Intercept 20.66 (0.20) 20.66 (0.17) 20.66 (0.16) 21.23 (0.19)
Main effects
 I. CIDM parameters
  Benefit distance 2 (\(\beta\))   0.36 (0.06) 0.36 (0.05) 0.36 (0.04)
  Cost increase for infected ties (\(\mu\))   − 3.40 (0.66) − 3.42 (0.63) − 3.42 (0.44)
  Disease severity (\(\frac{\sigma }{50}\))   − 1.82 (0.39) − 1.81 (0.38) − 1.81 (0.26)
  Risk perception (r)   − 2.80 (0.41) − 2.81 (0.39) − 2.81 (0.27)
  Network size (\(\frac{N}{50}\))   2.05 (0.59) − 3.20 (0.70) − 0.11 (1.15)
 II. Network properties (start of epidemics)
  Density (\({\text{den}}_{\text{start}}\))    − 26.87 (1.96) − 19.93 (3.20)
  Degree of patient-0 (\({\text{deg}}^{0}_{\text{start}}\))    3.30 (0.62) 3.31 (0.62)
Interaction effects
 Benefit distance 2 (\(\beta\)) \(\times\) cost increase for infected ties (\(\mu\))     1.05 (0.15)
 Benefit distance 2 (\(\beta\)) \(\times\) network size (\(\frac{N}{50}\))     − 1.06 (0.13)
 Cost increase for infected ties (\(\mu\)) \(\times\) density (\({\text{den}}_{\text{start}}\))     − 38.17 (5.00)
 Disease severity (\(\frac{\sigma }{50}\)) \(\times\) risk perception (r)     − 4.16 (0.64)
 Disease severity (\(\frac{\sigma }{50}\)) \(\times\) network size (\(\frac{N}{50}\))     6.48 (0.93)
 Risk perception (r) \(\times\) network size (\(\frac{N}{50}\))     8.20 (0.96)
 Network size (\(\frac{N}{50}\)) \(\times\) network density (\({\text{den}}_{\text{start}}\))     32.97 (9.35)
Random effects (unobserved effects)
 \(s^{2}\) 13.66 9.58 8.63 3.96
 Log likelihood (\(\ell\)) − 113,544.27 − 113,481.97 − 113,388.50 − 113,274.74
 Intraclass correlation (\(\rho\)) 0.31 0.24 0.22 0.11
Observations 36000 36000 36000 36000
Groups: parameter combinations 360 360 360 360
  1. Bold coefficients are significant at \(p<0.001\), others are not significant (\(p>0.05\)), SEs in parentheses