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Table 3 Homophily in network components for different link steps

From: Tracking social contact networks with online respondent-driven detection: who recruits whom?

  Variables (type of correlation coefficient) 1 link stepa p value 2 link stepsa p value 3-6 link steps (lumped together)a p value
Type of contact network Age (r) 0.36 [0.28–0.44] <0.001 (df: 486) 0.13 [−0.03−0.28] 0.109 (df: 156) 0.23 [−0.01−0.43] 0.058 (df: 70)
  Sex (r φ ) 0.07 [−0.02–0.16] 0.107 (df: 486) 0.25 [0.09–0.39] 0.002 (df: 156) 0.17 [−0.07−0.38] 0.167 (df: 70)
  Education (r rank ) 0.31 [0.23–0.40] <0.001 (n: 488) 0.08 [−0.08–0.24] 0.293 (n: 158) −0.01 [−0.25−0.21] 0.951 (n: 72)
  Household size (r) 0.22 [0.13–0.30] <0.001 (df: 486) 0.18 [0.02–0.33] 0.025 (df: 156) 0.03 [−0.20−0.26] 0.785 (df: 70)
  Degree LOG (r) 0.07 [−0.03–0.16] 0.153 (df: 468) −0.02 [−0.18–0.14] 0.808 (df: 149) −0.03 [−0.26−0.21] 0.838 (df: 67)
Clustering of vaccination and disease Vaccinated (r φ ) 0.23 [0.14–0.32] <0.001 (df: 453) 0.02 [−0.14–0.18] 0.817 (df: 143) 0.07 [−0.17−0.30] 0.567 (df: 67)
  Belief vaccination protects (r rank ) 0.26 [0.18–0.35] <0.001 (n: 455) 0.02 [−0.14–0.18] 0.812 (n: 145) 0.11 [−0.13−0.32] 0.387 (n: 69)
  One or more symptoms (r φ ) 0.11 [0.02–0.20] 0.018 (df: 453) 0.11 [−0.05–0.27] 0.179 (df: 143) 0.15 [−0.09−0.37] 0.231 (df: 67)
  Self-reported common cold (r φ ) 0.04 [−0.06–0.13] 0.455 (df: 453) −0.08 [−0.24–0.08] 0.333 (df: 143) −0.11 [−0.33−0.14] 0.389 (df: 67)
  Self-reported influenza (r φ ) 0.26 [0.17–0.34] <0.001 (df: 453) 0.03 [−0.13–0.20] 0.691 (df: 143) −0.04 [−0.27−0.20] 0.764 (df: 67)
  1. aCoefficients and 95 % confidence intervals are shown