Table 4 Correlation and agreement between residential value index, census income, and self-reported household income (N = 676)
From: Comparison of indicators of material circumstances in the context of an epidemiological study
Spearman correlation coefficient | Overall Kappa (95% CI) | Weighted Kappa (95% CI) | |
|---|---|---|---|
Residential value index vs. Self-reported household income | 0.52 | 0.21 (0.16 - 0.25) | 0.37 (0.32 - 0.42) |
Census income vs. Self-reported household income | 0.36 | 0.09 (0.05 - 0.14) | 0.25 (0.20 - 0.30) |