Table 4. Weighted Kappa (95% confidence intervals) for nine GIS-based measures of access to mammography in St. Louis.
| DST | DST5 | DES | SAU | SAC | SA3Q | SA3S | SA6Q | |
| DST | - | - | - | - | - | - | - | - |
| DST5 | 0.65 (0.62, 0.68) | - | - | - | - | - | - | - |
| DES | −0.11 (−0.15, −0.07) | −0.08 (−0.12, −0.04) | - | - | - | - | - | - |
| SAU | −0.11 (−0.15, −0.07) | −0.06 (−0.11, −0.02) | 0.32 (0.28, 0.36) | - | - | - | - | - |
| SAC | 0.10 (0.06, 0.15) | 0.18 (0.13, 0.22) | 0.26 (0.22, 0.30) | 0.61 (0.58, 0.64) | - | - | - | - |
| SA3Q | 0.15 (0.11, 0.20) | 0.25 (0.21, 0.29) | 0.24 (0.20, 0.29) | 0.52 (0.49, 0.55) | 0.82 (0.80, 0.84) | - | - | - |
| SA3S | 0.10 (0.05, 0.14) | 0.18 (0.14, 0.22) | 0.26 (0.22, 0.30) | 0.58 (0.55, 0.61) | 0.84 (0.82, 0.86) | 0.90 (0.88, 0.91) | - | - |
| SA6Q | 0.23 (0.18, 0.27) | 0.33 (0.29, 0.37) | 0.19 (0.14, 0.23) | 0.48 (0.44, 0.51) | 0.79 (0.77, 0.82) | 0.87 (0.85, 0.89) | 0.78 (0.75, 0.80) | - |
| SA6S | 0.03 (−0.01, 0.07) | 0.10 (0.06, 0.14) | 0.30 (0.26, 0.34) | 0.66 (0.63, 0.68) | 0.87 (0.86, 0.89) | 0.81 (0.79, 0.83) | 0.89 (0.88, 0.91) | 0.71 (0.68, 0.74) |
(DST: shortest travel time; DST5: average of 5 shortest travel time; DES: density; SAU: spatial accessibility index from the model without weighting parameter; SAC: spatial accessibility index from the model with continuous weighting parameter; SA3Q: spatial accessibility index from the zonal weighted model with 3 time zones and quick decay weighting; SA3S: spatial accessibility index from the zonal weighted model with 3 time zones and slow decay weighting; SA6Q: spatial accessibility index from the zonal weighted model with 6 time zones and quick decay weighting; SA6S: spatial accessibility index from the zonal weighted model with 6 time zones and slow decay weighting.)