Table 3

Concordance between area-level and individual-level SES by weighted Cohen's κ coefficient

Area-level measuresIndividual-level education (four SES groups)Individual-level income (five SES groups)
κ (95% CI)p Valueκ (95% CI)p Value
Quartiles of percentage of median household income0.16 (0.12 to 0.20)*<0.0010.19 (0.17 to 0.23)‡<0.001
Quartiles of percentage of bachelor degree or higher0.20 (0.16 to 0.25)†<0.0010.14 (0.1 to 0.16)§<0.001
  • *Weighted κ index between individual-level education (four categories) and area-level household income (four categories).

  • †Weighted κ index between individual-level (four categories) and area-level education (four categories).

  • ‡Weighted κ index between individual-level income (five categories) and area-level household income (four categories).

  • §Weighted κ index between individual-level (five categories) and area-level income (four categories).

  • SES, Socioeconomic status.